Topp, Edward, Ph.D.
Research Scientist
Contact Information:
1391 Sandford St
London, Ontario N5V 4T3
Telephone: 519-953-6717
Fax: 519-457-3997
Email: ed.topp@agr.gc.ca
Areas of Expertise:
- hormones
- escherichia coli
- environment
- antibiotics
- swine
- soils
- poultry
- water quality
- biosolids
- soybeans
- corn
- manure
Current Projects:
- Assessment and management of biological and chemical contaminants carried in livestock and poultry manure. [GAPS]
- Develop indicators to assess soil suitability to receive organic residues, based on soil nutrient characteristics, agronomic needs, and soil biological, chemical and physical quality.
- Develop new and improved handling and application practices and technologies to enhance nutrient use efficiency and reduce the environmental and health risks from organic residues.
- Develop new treatment technologies for organic wastes to enhance their economic value, conserve nitrogen and reduce phosphorus content, and minimize the environmental and health risks of the product.
- Improved understanding of the forms and fates of phosphorus in composts and development of compost BMPs for horticultural crops [GAPS]
- Increase understanding of the fundamental processes determining the on-farm fate of pathogens, organic contaminants, and nutrients.
- National Water Quality Surveillance Program
- Science-based use of municipal Biosolids for the protection of water quality
- Understanding and managing preferential flow of liquid manure and biosolids to adjacent water [GAPS]
Research publications
2018
- Liu, L., Cloutier, M., Craiovan, E., Edwards, M., Frey, S.K., Gottschall, N., Lapen, D.R., Sunohara, M., Topp, E., Khan, I.U.H. (2018). Quantitative real-time PCR-based assessment of tile drainage management influences on bacterial pathogens in tile drainage and groundwater, 624 1586-1597. http://dx.doi.org/10.1016/j.scitotenv.2017.10.200
2016
- Coors, A., Edwards, M., Lorenz, P., Römbke, J., Schmelz, R.M., Topp, E., Waszak, K., Wilkes, G., Lapen, D.R. (2016). Biosolids applied to agricultural land: Influence on structural and functional endpoints of soil fauna on a short- and long-term scale, 562 312-326. http://dx.doi.org/10.1016/j.scitotenv.2016.03.226
- Dring, C., Devlin, J.F., Boag, G., Sunohara, M.D., Fitzgibbon, J., Topp, E., Lapen, D.R. (2016). Incentives and disincentives identified by producers and drainage contractors/experts on the adoption of controlled tile drainage in eastern Ontario, Canada, 51(1), 1-16. http://dx.doi.org/10.2166/wqrjc.2015.047
- Fernando, D.M., Khan, I.U.H., Patidar, R., Lapen, D.R., Talbot, G., Topp, E., Kumar, A. (2016). Isolation and characterization of acinetobacter baumannii recovered from campylobacter selective medium, 7(NOV), http://dx.doi.org/10.3389/fmicb.2016.01871
- Fock-Chow-Tho, D. E. Topp, E. Ibeagha-Awemu, and N. Bissonnette. Comparison of commercial DNA extraction and QPCR systems for a better sensitivity in detecting the causative paratuberculosis pathogen in dairy cow fecal samples. International Congress on Paratuberculosis, Nantes, France, June 19-24th.
- Fock-Chow-Thow et al. 2017. Comparison of commercial DNA extraction kits and quantitative PCR systems for better sensitivity in detecting the causative agent of paratuberculosis in dairy cow fecal samples. Journal of Dairy Science 100(1):572-581.
- Holman, D.B., Hao, X., Topp, E., Yang, H.E., Alexander, T.W. (2016). Effect of co-composting cattle manure with construction and demolition waste on the archaeal, bacterial, and fungal microbiota, and on antimicrobial resistance determinants, 11(6), 1-21. http://dx.doi.org/10.1371/journal.pone.0157539
- Jones, T.H., Brassard, J., Topp, E., Wilkes, G., Lapen, D.R. (2017). Waterborne viruses and F-specific coliphages in mixed-use watersheds: Microbial associations, host specificities, and affinities with environmental/land use factors, 83(3), http://dx.doi.org/10.1128/AEM.02763-16
- Laprade, N., Cloutier, M., Lapen, D.R., Topp, E., Wilkes, G., Villemur, R., Khan, I.U.H. (2016). Detection of virulence, antibiotic resistance and toxin (VAT) genes in Campylobacter species using newly developed multiplex PCR assays, 124 41-47. http://dx.doi.org/10.1016/j.mimet.2016.03.009
- Rahube, T.O., Marti, R., Scott, A., Tien, Y.C., Murray, R., Sabourin, L., Duenk, P., Lapen, D.R., Topp, E. (2016). Persistence of antibiotic resistance and plasmid-associated genes in soil following application of sewage sludge and abundance on vegetables at harvest, 62(7), 600-607. http://dx.doi.org/10.1139/cjm-2016-0034
- Simmons, K., Islam, R., Rempel, H., Block, G.S., Topp, E., and Diarra, M.S. (2016 in press). "Antimicrobial Resistance of Escherichia fergusonii Isolated from Broiler Chickens.", Journal of Food Protection.
- Topp, E., Irwin, R., McAllister, T.A., Lessard, M., Joensuu, J.J., Kolotilin, I., Conrad, U., Stöger, E., Mor, T., Warzecha, H., Hall, J.C., McLean, M.D, Cox, E., Devriendt, B., Potter, A., Depicker, A., Virdi, V., Holbrook, L., Doshi, K., Dussault, M., Friendship, R.M., Yarosh, O., Yoo, H.S., MacDonald, J.D., and Menassa, R. (2016). "The case for plant-made veterinary immunotherapeutics.", Biotechnology Advances. doi : 10.1016/j.biotechadv.2016.02.007
- Topp, E., Renaud, J., Sumarah, M., Sabourin, L. (2016). Reduced persistence of the macrolide antibiotics erythromycin, clarithromycin and azithromycin in agricultural soil following several years of exposure in the field, 562 136-144. http://dx.doi.org/10.1016/j.scitotenv.2016.03.210
- Whiteduck-Léveillée, J., Cloutier, M., Topp, E., Lapen, D.R., Talbot, G., Villemur, R., Khan, I.U.H. (2016). Development and evaluation of multiplex PCR assays for rapid detection of virulence-associated genes in Arcobacter species, 121 59-65. http://dx.doi.org/10.1016/j.mimet.2015.12.017
- Whiteduck-Léveillée, K., Whiteduck-Léveillée, J., Cloutier, M., Tambong, J.T., Xu, R., Topp, E., Arts, M.T., Chao, J., Adam, Z., Lévesque, C.A., Lapen, D.R., Villemur, R., Khan, I.U.H. (2016). Identification, characterization and description of Arcobacter faecis sp. nov., isolated from a human waste septic tank, 39(2), 93-99. http://dx.doi.org/10.1016/j.syapm.2015.12.002
2015
- Al-Rajab, A.J., Sabourin, L., Lapen, D.R., Topp, E. (2015). Dissipation of triclosan, triclocarban, carbamazepine and naproxen in agricultural soil following surface or sub-surface application of dewatered municipal biosolids, 512-513 480-488. http://dx.doi.org/10.1016/j.scitotenv.2015.01.075
- Archambault, M., Boerlin, P., Campbell, J.M., Dumont, M., Hutchinson, J.J., Landals, D., McClure, J., McEwen, S.A., Prescott, J.F., Rubin, J., Slavic, D., Stemshorn, B., Skippon, W., Weese, S., Szkotnicki, J., and Topp, E. (2015). "Antibiotic stewardship’s golden moment: Resistance or change?", Canadian Veterinary Journal, 56(2), pp. 115-119.
- Barret, M., Gagnon, N., Morissette, B., Kalmokoff, M.L., Topp, E., Brooks, S.P.J., Matias, F., Neufeld, J.D., Talbot, G. (2015). Phylogenetic identification of methanogens assimilating acetate-derived carbon in dairy and swine manures, 38(1), 56-66. http://dx.doi.org/10.1016/j.syapm.2014.11.006
- Brandt, K.K., Aamézquita, A., Backhaus, T., Boxall, A.B.A., Coors, A., Heberer, T., Lawrence, J.R., Lazorchak, J.R., Schönfeld, J., Snape, J.R., Zhu, Y.-G., and Topp, E. (2015). "Ecotoxicological assessment of antibiotics: A call for improved consideration of microorganisms.", Environment International, 85, pp. 189-205. doi : 10.1016/j.envint.2015.09.013
- Caracciolo, A.B., Topp, E., and Grenni, P. (2015). "Pharmaceuticals in the environment: Biodegradation and effects on natural microbial communities. A Review.", Journal of Pharmaceutical and Biomedical Analysis, 106, pp. 25-36. doi : 10.1016/j.jpba.2014.11.040
- Dhanani, A.S., Block, G., Dewar, K., Forgetta, V., Topp, E., Beiko, R.G., Diarra, M.S. (2015). Genomic comparison of non-typhoidal Salmonella enterica Serovars Typhimurium, Enteritidis, Heidelberg, Hadar and Kentucky isolates from broiler chickens, 10(6), http://dx.doi.org/10.1371/journal.pone.0128773
- Etienne, D., Destas, M., Lyautey, E., Marti, R., Ruffaldi, P., Georges-Leroy, M., Dambrine, E., Topp, E. (2015). Two thousand–year reconstruction of livestock production intensity in France using sediment-archived fecal Bacteroidales and source-specific mitochondrial markers, 25(9), 1384-1393. http://dx.doi.org/10.1177/0959683615585836
- Frey, S.K., Gottschall, N., Wilkes, G., Grégoire, D.S., Topp, E., Pintar, K.D.M., Sunohara, M., Marti, R., Lapen, D.R. (2015). Rainfall-induced runoff from exposed streambed sediments: An important source of water pollution, 44(1), 236-247. http://dx.doi.org/10.2134/jeq2014.03.0122
- Frey, S.K., Topp, E., Khan, I.U.H., Ball, B.R., Edwards, M., Gottschall, N., Sunohara, M., Lapen, D.R. (2015). Quantitative Campylobacter spp., antibiotic resistance genes, and veterinary antibiotics in surface and ground water following manure application: Influence of tile drainage control, 532 138-153. http://dx.doi.org/10.1016/j.scitotenv.2015.03.114
- Holman, D.B., McAllister, T.A., Topp, E., Wright, A.D.G., Alexander, T.W. (2015). The nasopharyngeal microbiota of feedlot cattle that develop bovine respiratory disease, 180(1-2), 90-95. http://dx.doi.org/10.1016/j.vetmic.2015.07.031
- Jokinen, C.C., Koot, J., Cole, L., Desruisseau, A., Edge, T.A., Khan, I.U.H., Koning, W., Lapen, D.R., Pintar, K.D.M., Reid-Smith, R., Thomas, J.L., Topp, E., Wang, L.Y., Wilkes, G., Ziebell, K., van Bochove, E., Gannon, V.P.J. (2015). The distribution of Salmonella enterica serovars and subtypes insurface water from five agricultural regions across Canada, 76 120-131. http://dx.doi.org/10.1016/j.watres.2015.02.038
- Khan, A.H., Topp, E., Scott, A., Sumarah, M., Macfie, S.M., Ray, M.B. (2015). Biodegradation of benzalkonium chlorides singly and in mixtures by a Pseudomonas sp. isolated from returned activated sludge, 299 595-602. http://dx.doi.org/10.1016/j.jhazmat.2015.07.073
- Konopka, M., Henry, H.A.L., Marti, R., Topp, E. (2015). Multi-year and short-term responses of soil ammonia-oxidizing prokaryotes to zinc bacitracin, monensin, and ivermectin, singly or in combination, 34(3), 618-625. http://dx.doi.org/10.1002/etc.2848
- Lawrence, J.R., Topp, E., Waiser, M.J., Tumber, V., Roy, J., Swerhone, G.D.W., Leavitt, P., Paule, A., Korber, D.R. (2015). Resilience and recovery: The effect of triclosan exposure timing during development, on the structure and function of river biofilm communities, 161 253-266. http://dx.doi.org/10.1016/j.aquatox.2015.02.012
- MacDonald, J., Doshi, K., Dussault, M., Hall, J.C., Holbrook, L., Jones, G., Kaldis, A., Klima, C.L., MacDonald, P., McAllister, T.A., McLean, M.D, Potter, A., Richman, A.S., Shearer, H., Yarosh, O., Yoo, H.S., Topp, E., and Menassa, R. (2015). "Bringing plant-based veterinary vaccines to market: Managing regulatory and commercial hurdles.", Biotechnology Advances. doi : 10.1016/j.biotechadv.2015.07.007
- Que, Z., Seidou, O., Droste, R.L., Wilkes, G., Sunohara, M., Topp, E., Lapen, D.R. (2015). Using AnnAGNPS to predict the effects of tile drainage control on nutrient and sediment loads for a river basin, 44(2), 629-641. http://dx.doi.org/10.2134/jeq2014.06.0246
- Ross, J., Topp, E. (2015). Abundance of antibiotic resistance genes in bacteriophage following soil fertilization with dairy manure or municipal biosolids, and evidence for potential transduction, 81(22), 7905-7913. http://dx.doi.org/10.1128/AEM.02363-15
- Whiteduck-Léveillée, K., Whiteduck-Léveillée, J., Cloutier, M., Tambong, J.T., Xu, R., Topp, E., Arts, M.T., Chao, J., Adam, Z., Lévesque, C.A., Lapen, D.R., Villemur, R., Talbot, G., Khan, I.U.H. (2015). Arcobacter lanthieri sp. Nov., isolated from pig and dairy cattle manure, 65(8), 2709-2716. http://dx.doi.org/10.1099/ijs.0.000318
- Zhi, S., Li, Q., Yasui, Y., Edge, T., Topp, E., Neumann, N.F. (2015). Assessing host-specificity of Escherichia coli using a supervised learning logic-regression-based analysis of single nucleotide polymorphisms in intergenic regions, 92 72-81. http://dx.doi.org/10.1016/j.ympev.2015.06.007
2014
- Adam, Z., Whiteduck-Léveillée, K., Cloutier, M., Chen, W., Lewis, C.T., Lévesque, C.A., Topp, E., Lapen, D.R., Tambong, J.T., Talbot, G., Khan, I.U.H. (2014). Draft genome sequences of two Arcobacter strains isolated from human feces, 2(2), http://dx.doi.org/10.1128/genomeA.00113-14
- Adam, Z., Whiteduck-Leveillee, K., Cloutier, M., Chen, W., Lewis, C.T., Lévesque, C.A., Topp, E., Lapen, D.R., Tambong, J.T., Talbot, G., and Khan, I.U.H. (2014). "Draft genome sequence of Arcobacter cibarius Strain LMG21996{SUP}T{/SUP} isolated from broiler carcasses.", Genome Announcements, 2(1), pp. e00034-14. doi : 10.1128/genomeA.00034-14
- Adam, Z., Whiteduck-Leveillee, K., Cloutier, M., Tambong, J.T., Chen, W., Lewis, C.T., Lévesque, C.A., Topp, E., Lapen, D.R., Talbot, G., Khan, I.U.H. (2014). Draft genome sequences of three Arcobacter strains of pig and dairy cattle manure origin, 2(3), http://dx.doi.org/10.1128/genomeA.00377-14
- Diarra, M.S., Delaquis, P., Rempel, H., Bach, S., Harlton, C., Aslam, M., Pritchard, J., Topp, E. (2014). Antibiotic resistance and diversity of Salmonella enterica serovars associated with broiler chickens, 77(1), 40-49. http://dx.doi.org/10.4315/0362-028.JFP-13-251
- Khan, I.U.H., Gannon, V., Jokinen, C.C., Kent, R., Koning, W., Lapen, D.R., Medeiros, D., Miller, J., Neumann, N.F., Phillips, R., Schreier, H., Topp, E., van Bochove, E., Wilkes, G., Edge, T.A. (2014). A national investigation of the prevalence and diversity of thermophilic Campylobacter species in agricultural watersheds in Canada, 61 243-252. http://dx.doi.org/10.1016/j.watres.2014.05.027
- Kolotilin, I., Topp, E., Cox, E., Devriendt, B., Conrad, U., Joensuu, J.J., Stöger, E., Warzecha, H., McAllister, T.A., Potter, A., McLean, M.D, Hall, J.C., and Menassa, R. (2014). "Plant-based solutions for veterinary immunotherapeutics and prophylactics.", Veterinary Research, 45(1: Article number 117), pp. 1-12. doi : 10.1186/s13567-014-0117-4
- Macherius, A., Lapen, D.R., Reemtsma, T., Römbke, J., Topp, E., Coors, A. (2014). Triclocarban, triclosan and its transformation product methyl triclosan in native earthworm species four years after a commercial-scale biosolids application, 472 235-238. http://dx.doi.org/10.1016/j.scitotenv.2013.10.113
- Marti, R., Tien, Y.C., Murray, R., Scott, A., Sabourin, L., Topp, E. (2014). Safely coupling livestock and crop production systems: How rapidly do antibiotic resistance genes dissipate in soil following a commercial application of swine or dairy manure?, 80(10), 3258-3265. http://dx.doi.org/10.1128/AEM.00231-14
- Martin-Laurent, F., Marti, R., Waglechner, N., Wright, G.D., and Topp, E. (2014). "Draft genome sequence of the sulfonamide antibiotic-degrading Microbacterium sp. Strain C448. Genome Announcements.", Genome Announcements, 2(1), pp. e01113-13. doi : 10.1128/genomeA.01113-13
- McKellar, R.C., Peréz-Rodríguez, F., Harris, L.J., Moyne, A.l., Blais, B., Topp, E., Bezanson, G., Bach, S., Delaquis, P. (2014). Evaluation of different approaches for modeling Escherichia coli O157:H7 survival on field lettuce, 184 74-85. http://dx.doi.org/10.1016/j.ijfoodmicro.2014.04.026
- Prosser, R.S., Lissemore, L., Topp, E., Sibley, P.K. (2014). Bioaccumulation of triclosan and triclocarban in plants grown in soils amended with municipal dewatered biosolids, 33(5), 975-984. http://dx.doi.org/10.1002/etc.2505
- Rahube, T.O., Marti, R., Scott, A., Tien, Y.C., Murray, R., Sabourin, L., Zhang, Y., Duenk, P., Lapen, D.R., Topp, E. (2014). Impact of fertilizing with raw or anaerobically digested sewage sludge on the abundance of antibiotic-resistant coliforms, antibiotic resistance genes, and pathogenic bacteria in soil and on vegetables at harvest, 80(22), 6898-6907. http://dx.doi.org/10.1128/AEM.02389-14
- Simmons, K., Rempel, H., Block, G., Forgetta, V., Vaillancourt, R., Malouin, F., Topp, E., Delaquis, P., Diarra, M.S. (2014). Duplex PCR methods for the molecular detection of Escherichia fergusonii isolates from broiler chickens, 80(6), 1941-1948. http://dx.doi.org/10.1128/AEM.04169-13
- Sunohara, M.D., Craiovan, E., Topp, E., Gottschall, N., Drury, C.F., Lapen, D.R. (2014). Comprehensive nitrogen budgets for controlled tile drainage fields in eastern Ontario, Canada, 43(2), 617-630. http://dx.doi.org/10.2134/jeq2013.04.0117
- Wilkes, G., Brassard, J., Edge, T.A., Gannon, V., Gottschall, N., Jokinen, C.C., Jones, T.H., Khan, I.U.H., Marti, R., Sunohara, M.D., Topp, E., Lapen, D.R. (2014). Long-term monitoring of waterborne pathogens and microbial source tracking markers in paired agricultural watersheds under controlled and conventional tile drainage management, 80(12), 3708-3720. http://dx.doi.org/10.1128/AEM.00254-14
2013
- Alexander, T.W., Cook, S., Klima, C.L., Topp, E., McAllister, T.A. (2013). Susceptibility to tulathromycin in Mannheimia haemolytica isolated from feedlot cattle over a 3-year period, 4(OCT), http://dx.doi.org/10.3389/fmicb.2013.00297
- Ashbolt, N.J., Aamézquita, A., Backhaus, T., Borriello, P., Brandt, K.K., Collignon, P., Coors, A., Finley, R.L., Gaze, W.H., Heberer, T., Lawrence, J.R., Larsson, D.G.J., McEwen, S.A., Ryan, J.J., Schönfeld, J., Silley, P., Snape, J.R., Van den Eede, C., and Topp, E. (2013). "Human health risk assessment (HHRA) for environmental development and transfer of antibiotic resistance.", Environmental Health Perspectives, 121(9), pp. 993-1001. doi : 10.1289/ehp.1206316
- Barret, M., Gagnon, N., Kalmokoff, M.L., Topp, E., Verastegui, Y., Brooks, S.P.J., Matias, F., Neufeld, J.D., Talbot, G. (2013). Identification of Methanoculleus spp. as active methanogens during anoxic incubations of swine manure storage tank samples, 79(2), 424-433. http://dx.doi.org/10.1128/AEM.02268-12
- Barret, M., Gagnon, N., Topp, E., Masse, L., Massé, D.I., Talbot, G. (2013). Physico-chemical characteristics and methanogen communities in swine and dairy manure storage tanks: Spatio-temporal variations and impact on methanogenic activity, 47(2), 737-746. http://dx.doi.org/10.1016/j.watres.2012.10.047
- Finley, R.L., Collignon, P., Larsson, D.G.J., McEwen, S.A., Li, X.-Z., Gaze, W.H., Reid-Smith, R., Timinouni, M., Topp, E., and Graham, D.W. (2013). "The scourge of antibiotic resistance: the important role of the environment.", Clinical Infectious Diseases, 57(5), pp. 704-710. doi : 10.1093/cid/cit355
- Frey, S.K., Topp, E., Edge, T., Fall, C., Gannon, V., Jokinen, C., Marti, R., Neumann, N., Ruecker, N., Wilkes, G., Lapen, D.R. (2013). Using SWAT, Bacteroidales microbial source tracking markers, and fecal indicator bacteria to predict waterborne pathogen occurrence in an agricultural watershed, 47(16), 6326-6337. http://dx.doi.org/10.1016/j.watres.2013.08.010
- Gaze, W.H., Krone, S.M., Joakim Larsson, D.G., Li, X.Z., Robinson, J.A., Simonet, P., Smalla, K., Timinouni, M., Topp, E., Wellington, E.M., Wright, G.D., Zhu, Y.G. (2013). Influence of humans on evolution and mobilization of environmental antibiotic resistome, 19(7), http://dx.doi.org/10.3201/eid1907.120871
- Gottschall, N., Topp, E., Edwards, M., Payne, M., Kleywegt, S., Russell, P., Lapen, D.R. (2013). Hormones, sterols, and fecal indicator bacteria in groundwater, soil, and subsurface drainage following a high single application of municipal biosolids to a field, 91(3), 275-286. http://dx.doi.org/10.1016/j.chemosphere.2012.10.108
- Li, H., Sumarah, M.W., Topp, E. (2013). Persistence and dissipation pathways of the antidepressant sertraline in agricultural soils, 452-453 296-301. http://dx.doi.org/10.1016/j.scitotenv.2013.02.080
- Li, H., Sumarah, M.W., Topp, E. (2013). Persistence of the tricyclic antidepressant drugs amitriptyline and nortriptyline in agriculture soils, 32(3), 509-516. http://dx.doi.org/10.1002/etc.2112
- Marti, R., Gannon, V.P.J., Jokinen, C., Lanthier, M., Lapen, D.R., Neumann, N.F., Ruecker, N.J., Scott, A., Wilkes, G., Zhang, Y., Topp, E. (2013). Quantitative multi-year elucidation of fecal sources of waterborne pathogen contamination in the South Nation River basin using Bacteroidales microbial source tracking markers, 47(7), 2315-2324. http://dx.doi.org/10.1016/j.watres.2013.02.009
- Marti, R., Scott, A., Tien, Y.C., Murray, R., Sabourin, L., Zhang, Y., Topp, E. (2013). Impact of manure fertilization on the abundance of antibiotic-resistant bacteria and frequency of detection of antibiotic resistance genes in soil and on vegetables at harvest, 79(18), 5701-5709. http://dx.doi.org/10.1128/AEM.01682-13
- Marti, R., Zhang, Y., Tien, Y.C., Lapen, D.R., Topp, E. (2013). Assessment of a new Bacteroidales marker targeting North American beaver (Castor canadensis) fecal pollution by real-time PCR, 95(2), 201-206. http://dx.doi.org/10.1016/j.mimet.2013.08.016
- Merkx-Jacques, A., Coors, A., Brousseau, R., Masson, L., Mazza, A., Tien, Y.C., Topp, E. (2013). Evaluating the pathogenic potential of environmental Escherichia coli by using the caenorhabditis elegans infection model, 79(7), 2435-2445. http://dx.doi.org/10.1128/AEM.03501-12
- Metcalfe, C.D., Kleywegt, S., Letcher, R.J., Topp, E., Wagh, P., Trudeau, V.L., Moon, T.W. (2013). A multi-assay screening approach for assessment of endocrine-active contaminants in wastewater effluent samples, 454-455 132-140. http://dx.doi.org/10.1016/j.scitotenv.2013.02.074
- Nangia, V., Sunohara, M.D., Topp, E., Gregorich, E.G., Drury, C.F., Gottschall, N., Lapen, D.R. (2013). Measuring and modeling the effects of drainage water management on soil greenhouse gas fluxes from corn and soybean fields, 129 652-664. http://dx.doi.org/10.1016/j.jenvman.2013.05.040
- Pariseau, E., Massé, D.I., Masse, L., Topp, E., Burrus, V., Malouin, F. (2013). Coagulation-flocculation pre-treatment of surface water used on dairy farms and evaluation of bacterial viability and gene transfer in treatment sludge, 48(2), 111-120. http://dx.doi.org/10.2166/wqrjc.2013.140
- Parmley, E.J., Pintar, K.D.M., Majowicz, S.E., Avery, B., Cook, A., Jokinen, C.C., Gannon, V.P.J., Lapen, D.R., Topp, E., Edge, T.A., Gilmour, M., Pollari, F., Reid-Smith, R., and Irwin, R. (2013). "A Canadian Application of One Health: Integration of Salmonella Data from Various Canadian Surveillance Programs (2005–2010).", Foodborne Pathogens and Disease, 10, pp. 747-756. doi : 10.1089/fpd.2012.1438
- Pruden, A., Larsson, D.G.J., Aamézquita, A., Collignon, P., Brandt, K.K., Graham, D.W., Lazorchak, J.R., Suzuki, S., Silley, P., Snape, J.R., Topp, E., Zhao, T., and Zhu, Y.-G. (2013). "Management options for reducing the release of antibiotics and antibiotic resistance genes to the environment.", Environmental Health Perspectives, 121, pp. 878-885. doi : 10.1289/ehp.1206446
- Ruecker, N.J., Matsune, J.C., Lapen, D.R., Topp, E., Edge, T.A., Neumann, N.F. (2013). The detection of Cryptosporidium and the resolution of mixtures of species and genotypes from water, 15 3-9. http://dx.doi.org/10.1016/j.meegid.2012.09.009
- Schmidt, P.J., Pintar, K.D.M., Fazil, A.M., Flemming, C.A., Lanthier, M., Laprade, N., Sunohara, M.D., Simhon, A., Thomas, J.L., Topp, E., Wilkes, G., Lapen, D.R. (2013). Using Campylobacter spp. and Escherichia coli data and Bayesian microbial risk assessment to examine public health risks in agricultural watersheds under tile drainage management, 47(10), 3255-3272. http://dx.doi.org/10.1016/j.watres.2013.02.002
- Topp, E., Chapman, R.A., Devers-Lamrani, M., Hartmann, A., Romain, M., Martin-Laurent, F., Sabourin, L., Scott, A., and Sumarah, M.W. (2013). "Accelerated Biodegradation of Veterinary Antibiotics in Agricultural Soil following Long-Term Exposure, and Isolation of a Sulfamethazine-degrading Microbacterium sp.", Journal of Environmental Quality, 42(1), pp. 173-178. doi : 10.2134/jeq2012.0162
- Vuong, N.M., Villemur, R., Payment, P., Brousseau, R., Topp, E., Masson, L. (2013). Fecal source tracking in water using a mitochondrial DNA microarray, 47(1), 16-30. http://dx.doi.org/10.1016/j.watres.2012.09.011
- Wilkes, G., Brassard, J., Edge, T.A., Gannon, V., Jokinen, C.C., Jones, T.H., Marti, R., Neumann, N.F., Ruecker, N.J., Sunohara, M., Topp, E., Lapen, D.R. (2013). Coherence among different microbial source tracking markers in a small agricultural stream with or without livestock exclusion practices, 79(20), 6207-6219. http://dx.doi.org/10.1128/AEM.01626-13
- Wilkes, G., Ruecker, N.J., Neumann, N.F., Gannon, V.P.J., Jokinen, C., Sunohara, M., Topp, E., Pintar, K.D.M., Edge, T.A., Lapen, D.R. (2013). Spatiotemporal analysis of Cryptosporidium species/genotypes and relationships with other zoonotic pathogens in surface water from mixed-use watersheds, 79(2), 434-448. http://dx.doi.org/10.1128/AEM.01924-12
- Wilkes, G.A., Brassard, J., Edge, T.A., Gannon, V.P.J., Jokinen, C.C., Jones, T.H., Neumann, N.F., Pintar, K.D.M., Ruecker, N.J., Schmidt, P.J., Sunohara, M., Topp, E., and Lapen, D.R. (2013). "Bacteria, viruses, and parasites in an intermittent stream protected from and exposed to pasturing cattle: prevalence, densities, and quantitative microbial risk assessment.", Water Research, 47(16), pp. 6244-6257.
- Zaheer, R., Cook, S.R., Klima, C.L., Stanford, K., Alexander, T., Topp, E., Read, R.R., McAllister, T.A. (2013). Effect of subtherapeutic vs. therapeutic administration of macrolides on antimicrobial resistance in Mannheimia haemolytica and enterococci isolated from beef cattle, 4(MAY), http://dx.doi.org/10.3389/fmicb.2013.00133
2012
- Ball Coelho, B., Lapen, D., Murray, R., Topp, E., Bruin, A., Khan, B. (2012). Nitrogen loading to offsite waters from liquid swine manure application under different drainage and tillage practices, 104 40-50. http://dx.doi.org/10.1016/j.agwat.2011.11.014
- Ball Coelho, B., Murray, R., Lapen, D., Topp, E., Bruin, A. (2012). Phosphorus and sediment loading to surface waters from liquid swine manure application under different drainage and tillage practices, 104 51-61. http://dx.doi.org/10.1016/j.agwat.2011.10.020
- Barret, M., Gagnon, N., Morissette, B., Topp, E., Kalmokoff, M., Brooks, S.P.J., Matias, F., Massé, D.I., Masse, L., Talbot, G. (2012). Methanoculleus spp. as a biomarker of methanogenic activity in swine manure storage tanks, 80(2), 427-440. http://dx.doi.org/10.1111/j.1574-6941.2012.01308.x
- Bezanson, G., Delaquis, P., Bach, S., McKellar, R., Topp, E., Gill, A., Blais, B., Gilmour, M. (2012). Comparative examination of Escherichia coli O157:H7 survival on romaine lettuce and in soil at two independent experimental sites, 75(3), 480-487. http://dx.doi.org/10.4315/0362-028X.JFP-11-306
- Boxall, A.B.A., Topp, E., Rudd, M.A., Brooks, B.W., Caldwell, D.J., Choi, K., Hickmann, S., Innes, E., Ostapyk, K., Staveley, J.P., Verslycke, T., Ankley, G.T., Beazley, K.F., Bélanger, S.E., Berninger, J.P, Carriquiriborde, P., Coors, A., DeLeo, P.C., Dyer, S.D., Ericson, J.F., Gagné, F., Giesy, J.P., Gouin, T., Hallstrom, L., Karlsson, M.V., Larsson, D.G.J., Lazorchak, J.R., Mastrocco, F., McLaughlin, A., McMaster, M.E., Meyerhoff, R.D., Moore, R., Parrott, J., Snape, J.R., Murray-Smith, R., Servos, M., Sibley, P.K., Straub, J.O., Szabo, N.D., Tetreault, G.R., Trudeau, V.L., and Van Der Kraak, G. (2012). "Pharmaceuticals and Personal Care Products in the Environment: What Are the Big Questions?", Environmental Health Perspectives, 120(9), pp. 1221-1229. doi : 10.1289/ehp.1104477
- Edge, T.A., El-Shaarawi, A., Gannon, V., Jokinen, C., Kent, R., Khan, I.U.H., Koning, W., Lapen, D., Miller, J., Neumann, N., Phillips, R., Robertson, W., Schreier, H., Scott, A., Shtepani, I., Topp, E., Wilkes, G., van Bochove, E. (2012). Investigation of an Escherichia coli environmental benchmark for waterborne pathogens in agricultural watersheds in canada, 41(1), 21-30. http://dx.doi.org/10.2134/jeq2010.0253
- Forgetta, V., Rempel, H., Malouin, F., Vaillancourt, J., Topp, E., Dewar, K., Diarra, M.S. (2012). Pathogenic and multidrug-resistant Escherichia fergusonii from broiler chicken, 91(2), 512-525. http://dx.doi.org/10.3382/ps.2011-01738
- Gottschall, N., Topp, E., Metcalfe, C., Edwards, M., Payne, M., Kleywegt, S., Russell, P., Lapen, D.R. (2012). Pharmaceutical and personal care products in groundwater, subsurface drainage, soil, and wheat grain, following a high single application of municipal biosolids to a field, 87(2), 194-203. http://dx.doi.org/10.1016/j.chemosphere.2011.12.018
- Jokinen, C.C., Edge, T.A., Koning, W., Laing, C.R., Lapen, D.R., Miller, J., Mutschall, S., Scott, A., Taboada, E.N., Thomas, J.E., Topp, E., Wilkes, G., Gannon, V.P.J. (2012). Spatial and temporal drivers of zoonotic pathogen contamination of an agricultural watershed, 41(1), 242-252. http://dx.doi.org/10.2134/jeq2011.0203
- Jokinen, C.C., Koot, J.M., Carrillo, C.D., Gannon, V.P.J., Jardine, C.M., Mutschall, S.K., Topp, E., Taboada, E.N. (2012). An enhanced technique combining pre-enrichment and passive filtration increases the isolation efficiency of Campylobacter jejuni and Campylobacter coli from water and animal fecal samples, 91(3), 506-513. http://dx.doi.org/10.1016/j.mimet.2012.09.005
- Lawrence, J.R., Zhu, B., Swerhone, G.D.W., Roy, J., Tumber, V., Waiser, M.J., Topp, E., Korber, D.R. (2012). Molecular and microscopic assessment of the effects of caffeine, acetaminophen, diclofenac, and their mixtures on river biofilm communities, 31(3), 508-517. http://dx.doi.org/10.1002/etc.1723
- Lyautey, E., Hartmann, A., Lapen, D.R., and Topp, E. (2012). "A comparison of enrichment and direct plating methods for isolation of Listeria monocytogenes from surface water.", Canadian Journal of Microbiology, 58(12), pp. 1405-1410. doi : 10.1139/cjm-2012-0418
- McAllister, T.A., Topp, E. (2012). Role of livestock in microbiological contamination of water: Commonly the blame, but not always the source, 2(2), 17-27. http://dx.doi.org/10.2527/af.2012-0039
- Merchant, L.E., Rempel, H., Forge, T., Kannangara, T., Bittman, S., Delaquis, P., Topp, E., Ziebell, K.A., Diarra, M.S. (2012). Characterization of antibiotic-resistant and potentially pathogenic Escherichia coli from soil fertilized with litter of broiler chickens fed antimicrobial-supplemented diets., 58(9), 1084-1098. http://dx.doi.org/10.1139/w2012-082
- Ruecker, N.J., Matsune, J.C., Wilkes, G., Lapen, D.R., Topp, E., Edge, T.A., Sensen, C.W., Xiao, L., Neumann, N.F. (2012). Molecular and phylogenetic approaches for assessing sources of Cryptosporidium contamination in water, 46(16), 5135-5150. http://dx.doi.org/10.1016/j.watres.2012.06.045
- Sabourin, L., Duenk, P., Bonte-Gelok, S., Payne, M., Lapen, D.R., Topp, E. (2012). Uptake of pharmaceuticals, hormones and parabens into vegetables grown in soil fertilized with municipal biosolids, 431 233-236. http://dx.doi.org/10.1016/j.scitotenv.2012.05.017
- Sunohara, M.D., Topp, E., Wilkes, G., Gottschall, N., Neumann, N., Ruecker, N., Jones, T.H., Edge, T.A., Marti, R., Lapen, D.R. (2012). Impact of riparian zone protection from cattle on nutrient, bacteria, f-coliphage, cryptosporidium, and giardia loading of an intermittent stream, 41(4), 1301-1314. http://dx.doi.org/10.2134/jeq2011.0407
- Topp, E., Sumarah, M.W., Sabourin, L. (2012). The antihistamine diphenhydramine is extremely persistent in agricultural soil, 439 136-140. http://dx.doi.org/10.1016/j.scitotenv.2012.09.033
- Vela, J., Hildebrandt, K., Metcalfe, A., Rempel, H., Bittman, S., Topp, E., Diarra, M. (2012). Characterization of Staphylococcus xylosus isolated from broiler chicken barn bioaerosol, 91(12), 3003-3012. http://dx.doi.org/10.3382/ps.2012-02302
- Zaheer, R., Yanke, L.J., Church, D., Topp, E., Read, R.R., McAllister, T.A. (2012). High-throughput species identification of enterococci using pyrosequencing, 89(3), 174-178. http://dx.doi.org/10.1016/j.mimet.2012.03.012
2011
- Alexander, T.W., Yanke, J.L., Reuter, T., Topp, E., Read, R.R., Selinger, B.L., McAllister, T.A. (2011). Longitudinal characterization of antimicrobial resistance genes in feces shed from cattle fed different subtherapeutic antibiotics, 11 http://dx.doi.org/10.1186/1471-2180-11-19
- Cessna, A.J., Larney, F.J., Kuchta, S.L., Hao, X., Entz, T., Topp, E., McAllister, T.A. (2011). Veterinary antimicrobials in feedlot manure: Dissipation during composting and effects on composting processes, 40(1), 188-198. http://dx.doi.org/10.2134/jeq2010.0079
- Champagne, J., Diarra, M.S., Rempe, H., Topp, E., Greer, C.W., Harel, J., Masson, L. (2011). Development of a DNA microarray for enterococcal species, virulence, and antibiotic resistance gene determinations among isolates from poultry, 77(8), 2625-2633. http://dx.doi.org/10.1128/AEM.00263-11
- Chen, B., Zheng, W., Yu, Y., Huang, W., Zheng, S., Zhang, Y., Guan, X., Zhuang, Y., Chen, N., Topp, E. (2011). Class 1 integrons, selected virulence genes, and antibiotic resistance in Escherichia coli isolates from the Minjiang River, Fujian Province, China, 77(1), 148-155. http://dx.doi.org/10.1128/AEM.01676-10
- Edwards, M., Topp, E., Bolton, P., Lapen, D.R. (2011). Practical considerations optically sensing rhodamine WT in water impacted by municipal biosolids, 173(1-4), 37-44. http://dx.doi.org/10.1007/s10661-010-1368-9
- Gagnon, N., Barret, M., Topp, E., Kalmokoff, M., Massé, D., Masse, L., Talbot, G. (2011). A novel fingerprint method to assess the diversity of methanogens in microbial systems, 325(2), 115-122. http://dx.doi.org/10.1111/j.1574-6968.2011.02418.x
- Jokinen, C., Edge, T.A., Ho, S., Koning, W., Laing, C., Mauro, W., Medeiros, D., Miller, J., Robertson, W., Taboada, E., Thomas, J.E., Topp, E., Ziebell, K., Gannon, V.P.J. (2011). Molecular subtypes of Campylobacter spp., Salmonella enterica, and Escherichia coli O157:H7 isolated from faecal and surface water samples in the Oldman River watershed, Alberta, Canada, 45(3), 1247-1257. http://dx.doi.org/10.1016/j.watres.2010.10.001
- Kalmokoff, M., Waddington, L.M., Thomas, M., Liang, K.L., Ma, C., Topp, E., Dandurand, U.D., Letellier, A., Matias, F., Brooks, S.P.J. (2011). Continuous feeding of antimicrobial growth promoters to commercial swine during the growing/finishing phase does not modify faecal community erythromycin resistance or community structure, 110(6), 1414-1425. http://dx.doi.org/10.1111/j.1365-2672.2011.04992.x
- Lanthier, M., Scott, A., Zhang, Y., Cloutier, M., Durie, D., Henderson, V.C., Wilkes, G., Lapen, D.R., Topp, E. (2011). Distribution of selected virulence genes and antibiotic resistance in Enterococcus species isolated from the South Nation River drainage basin, Ontario, Canada, 110(2), 407-421. http://dx.doi.org/10.1111/j.1365-2672.2010.04893.x
- Larney, F.J., Hao, X., and Topp, E. (2011). "Manure Management.", in Hatfield, J.L. and Sauer, T.J. (eds.) - Soil Management: Building a Stable Base for Agriculture, Soil Science Society of America (SSSA), Chapter 16, pp. 247-263.
- Lyautey, E., Wilkes, G., Miller, J.J., Van Bochove, E., Schreier, H., Koning, W., Edge, T.A., Lapen, D.R., Topp, E. (2011). Variation of an indicator of Escherichia coli persistence from surface waters of mixed-use watersheds, and relationship with environmental factors, 47(1), 11-19. http://dx.doi.org/10.1051/limn/2010033
- Marti, R., Zhang, Y., Lapen, D.R., Topp, E. (2011). Development and validation of a microbial source tracking marker for the detection of fecal pollution by muskrats, 87(1), 82-88. http://dx.doi.org/10.1016/j.mimet.2011.07.013
- Massé, D., Gilbert, Y., Topp, E. (2011). Pathogen removal in farm-scale psychrophilic anaerobic digesters processing swine manure, 102(2), 641-646. http://dx.doi.org/10.1016/j.biortech.2010.08.020
- Massé, D.I., Masse, L., Topp, E., Séguin, G., Ortega, L.M., Scott, A., Pariseau, E. (2011). Maintenance strategies for on-site water disinfection by ultraviolet lamps on dairy farms, 46(1), 2-12. http://dx.doi.org/10.2166/wqrjc.2011.014
- Mirzaagha, P., Louie, M., Sharma, R., Yanke, L.J., Topp, E., McAllister, T.A. (2011). Distribution and characterization of ampicillin- and tetracycline-resistant Escherichia coli from feedlot cattle fed subtherapeutic antimicrobials, 11 http://dx.doi.org/10.1186/1471-2180-11-78
- Sabourin, L., Al-Rajab, A.J., Chapman, R., Lapen, D.R., Topp, E. (2011). Fate of the antifungal drug clotrimazole in agricultural soil, 30(3), 582-587. http://dx.doi.org/10.1002/etc.432
- Sharma, R., Ryan, K., Hao, X., Larney, F.J., McAllister, T.A., Topp, E. (2011). Real-time quantification of mcrA, pmoA for methanogen, methanotroph estimations during composting, 40(1), 199-205. http://dx.doi.org/10.2134/jeq2010.0088
- Su, R., Munns, K., Beauchemin, K.A., Schwartzkopf-Genswein, K., Jin-Quan, L., Topp, E., Sharma, R. (2011). Effect of backgrounding and transition diets on fecal concentration and strain types of commensal Escherichia coli in beef cattle, 91(3), 449-458. http://dx.doi.org/10.4141/CJAS2010-034
- Wilkes, G., Edge, T.A., Gannon, V.P.J., Jokinen, C., Lyautey, E., Neumann, N.F., Ruecker, N., Scott, A., Sunohara, M., Topp, E., Lapen, D.R. (2011). Associations among pathogenic bacteria, parasites, and environmental and land use factors in multiple mixed-use watersheds, 45(18), 5807-5825. http://dx.doi.org/10.1016/j.watres.2011.06.021
2010
- Al-Rajab, A.J., Sabourin, L., Chapman, R., Lapen, D.R., Topp, E. (2010). Fate of the antiretroviral drug tenofovir in agricultural soil, 408(22), 5559-5564. http://dx.doi.org/10.1016/j.scitotenv.2010.07.074
- Al-Rajab, A.J., Sabourin, L., Lapen, D.R., Topp, E. (2010). The non-steroidal anti-inflammatory drug diclofenac is readily biodegradable in agricultural soils, 409(1), 78-82. http://dx.doi.org/10.1016/j.scitotenv.2010.09.020
- Alexander, T.W., Inglis, G.D., Yanke, L.J., Topp, E., Read, R.R., Reuter, T., McAllister, T.A. (2010). Farm-to-fork characterization of Escherichia coli associated with feedlot cattle with a known history of antimicrobial use, 137(1), 40-48. http://dx.doi.org/10.1016/j.ijfoodmicro.2009.11.008
- Boxall, A.B.A., Hardy, A., Beulke, S., Boucard, T., Burgin, L., Falloon, P.D., Haygarth, P.M., Hutchinson, J.J., Kovats, R.S., Leonardi, G., Levy, L.S., Nichols, G., Parsons, S.A., Potts, L., Stone, D., Topp, E., Turley, D.B., Walsh, K., Wellington, E.M.H., and Williams, R.J. (2010). "Impacts of climate change on indirect human exposure to pathogens and chemicals from agriculture (Reprint of: Boxall AB, Hardy A, Beulke S, Boucard T, Burgin L, Falloon PD, et al. 2009. Impacts of climate change on indirect human exposure to pathogens and chemicals from agriculture. Environ Health Perspect 117:508-514. doi:10.1289/ehp.0800084).", Ciência e saúde coletiva, 15(3), pp. 743-756. doi : 10.1590/S1413-81232010000300017
- Cicek, H., Sunohara, M., Wilkes, G., McNairn, H., Pick, F., Topp, E., Lapen, D.R. (2010). Using vegetation indices from satellite remote sensing to assess corn and soybean response to controlled tile drainage, 98(2), 261-270. http://dx.doi.org/10.1016/j.agwat.2010.08.019
- Diarra, M.S., Rempel, H., Champagne, J., Masson, L., Pritchard, J., Topp, E. (2010). Distribution of antimicrobial resistance and virulence genes in enterococcus spp. and characterization of isolates from broiler chickens, 76(24), 8033-8043. http://dx.doi.org/10.1128/AEM.01545-10
- Douglas Inglis, G., McAllister, T.A., Larney, F.J., Topp, E. (2010). Prolonged survival of campylobacter species in bovine manure compost, 76(4), 1110-1119. http://dx.doi.org/10.1128/AEM.01902-09
- Gottschall, N., Topp, E., Edwards, M., Russell, P., Payne, M., Kleywegt, S., Curnoe, W., Lapen, D.R. (2010). Polybrominated diphenyl ethers, perfluorinated alkylated substances, and metals in tile drainage and groundwater following applications of municipal biosolids to agricultural fields, 408(4), 873-883. http://dx.doi.org/10.1016/j.scitotenv.2009.10.063
- Jokinen, C.C., Schreier, H., Mauro, W., Taboada, E., Isaac-Renton, J.L., Topp, E., Edge, T., Thomas, J.E., Gannon, V.P.J. (2010). The occurrence and sources of Campylobacter spp., Salmonella enterica and Escherichia coli O157:H7 in the Salmon River, British Columbia, Canada, 8(2), 374-386. http://dx.doi.org/10.2166/wh.2009.076
- Küster, A., Alder, A.C., Escher, B.I., Duis, K., Fenner, K., Garric, J., Hutchinson, T.H., Lapen, D.R., Péry, A., Römbke, J., Snape, J.R., Ternes, T., Topp, E., Wehrhan, A., and Knacker, T. (2010). "Environmental risk assessment of human pharmaceuticals in the European Union: A case study with the β-blocker atenolol.", Integrated Environmental Assessment and Management, 6(S1), pp. 514-523. doi : 10.1897/IEAM_2009-050.1
- Létourneau, V., Duchaine, C., Côté, C., Letellier, A., Topp, E., Massé, D. (2010). Presence of zoonotic pathogens in physico-chemically characterized manures from hog finishing houses using different production systems, 101(11), 4048-4055. http://dx.doi.org/10.1016/j.biortech.2010.01.009
- Lanthier, M., Scott, A., Lapen, D.R., Zhang, Y., Topp, E. (2010). Frequency of virulence genes and antibiotic resistances in Enterococcus spp. isolates from wastewater and feces of domesticated mammals and birds, and wildlife, 56(9), 715-729. http://dx.doi.org/10.1139/W10-046
- Lyautey, E., Lu, Z., Lapen, D.R., Berkers, T.E., Edge, T.A., Topp, E. (2010). Optimization and validation of rep-PCR genotypic libraries for microbial source tracking of environmental Escherichia coli isolates, 56(1), 8-17. http://dx.doi.org/10.1139/W09-113
- Lyautey, E., Lu, Z., Lapen, D.R., Wilkes, G., Scott, A., Berkers, T., Edge, T.A., Topp, E. (2010). Distribution and diversity of escherichia coli populations in the South Nation River Drainage basin, eastern Ontario Canada, 76(5), 1486-1496. http://dx.doi.org/10.1128/AEM.02288-09
- Mangalappalli-Illathu, A., Duriez, P., Masson, L., Diarra, M.S., Scott, A., Tien, Y.C., Zhang, Y., Topp, E. (2010). Dynamics of antimicrobial resistance and virulence genes in enterococcus faecalis during swine manure storage, 56(8), 683-691. http://dx.doi.org/10.1139/W10-055
- Masse, L., Massé, D.I., Topp, E., Séguin, G., Scott, A., Ortega, L.M., and Pariseau, É. (2010). "Microbial and Physico-Chemical Characteristics of Surface Water Sources Used on Dairy Farms in Ontario.", Water Quality Research Journal of Canada, 45(3), pp. 287-294.
- Parrott, J., McLaughlin, A., Lapen, D.R., and Topp, E. (2010). "Environmental risk assessment of pharmaceuticals.", in Kaputska, L.A. and Landis, W.G. (eds.) - Environmental Risk Assessment and Management from a Landscape Perspective, John Wiley & Sons, Ltd, pp. 329-346.
- Sharma, R., Keffer-Wilkes, L., Wu, R., Li, J.Q., John, S.J., Topp, E. (2010). Enumeration and strain characterization of fecal escherichia coli associated with feeding triticale dried distillers grain with solubles in beef cattle diets, 7(11), 1323-1330. http://dx.doi.org/10.1089/fpd.2010.0557
- Talbot, G., Roy, C.S., Topp, E., Kalmokoff, M.L., Brooks, S.P.J., Beaulieu, C., Palin, M.F., Masse, D.I. (2010). Spatial distribution of some microbial trophic groups in a plug-flow-type anaerobic bioreactor treating swine manure, 61(5), 1147-1155. http://dx.doi.org/10.2166/wst.2010.014
- Topp, E., Metcalfe, C.D., Boxall, A.B.A., and Lapen, D.R. (2010). "Transport of PPCPs and Veterinary Medicines from Agricultural Fields following Application of Biosolids or Manure.", in Halden, R.U. (ed.) - Contaminants of Emerging Concern in the Environment: Ecological and Human Health Considerations. ACS Symposium Series Vol. 1048, American Chemical Society (ACS), Chapter 10, pp. 227-240.
2009
- Al-Rajab, A.J., Sabourin, L., Scott, A., Lapen, D.R., Topp, E. (2009). Impact of biosolids on the persistence and dissipation pathways of triclosan and triclocarban in an agricultural soil, 407(23), 5978-5985. http://dx.doi.org/10.1016/j.scitotenv.2009.08.003
- Alexander, T.W., Reuter, T., Sharma, R., Yanke, L.J., Topp, E., McAllister, T.A. (2009). Longitudinal characterization of resistant Escherichia coli in fecal deposits from cattle fed subtherapeutic levels of antimicrobials, 75(22), 7125-7134. http://dx.doi.org/10.1128/AEM.00944-09
- Bonnet, C., Diarrassouba, F., Brousseau, R., Masson, L., Topp, E., Diarra, M.S. (2009). Pathotype and antibiotic resistance gene distributions of Escherichia coli isolates from broiler chickens raised on antimicrobial-supplemented diets, 75(22), 6955-6962. http://dx.doi.org/10.1128/AEM.00375-09
- Boxall, A.B.A., Hardy, A., Beulke, S., Boucard, T., Burgin, L., Falloon, P.D., Haygarth, P.M., Hutchinson, T.H., Kovats, R.S., Leonardi, G., Levy, L.S., Nichols, G., Parsons, S.A., Potts, L., Stone, D., Topp, E., Turley, D.B., Walsh, K., Wellington, E.M.H., and Williams, R.J. (2009). "Impacts of climate change on indirect human exposure to pathogens and chemicals from agriculture.", Environmental Health Perspectives, 117(4), pp. 508-514. doi : 10.1289/ehp.0800084
- Edwards, M., Topp, E., Metcalfe, C.D., Li, H., Gottschall, N., Bolton, P., Curnoe, W., Payne, M., Beck, A., Kleywegt, S., Lapen, D.R. (2009). Pharmaceutical and personal care products in tile drainage following surface spreading and injection of dewatered municipal biosolids to an agricultural field, 407(14), 4220-4230. http://dx.doi.org/10.1016/j.scitotenv.2009.02.028
- Gottschall, N., Edwards, M., Topp, E., Bolton, P., Payne, M., Curnoe, W.E., Ball Coelho, B., Lapen, D.R. (2009). Nitrogen, phosphorus, and bacteria tile and groundwater quality following direct injection of dewatered municipal biosolids into soil, 38(3), 1066-1075. http://dx.doi.org/10.2134/jeq2008.0085
- Khan, I.U.H., Gannon, V., Loughborough, A., Jokinen, C., Kent, R., Koning, W., Lapen, D.R., Medeiros, D., Miller, J., Neumann, N., Phillips, R., Robertson, W., Schreier, H., Topp, E., van Bochove, E., Edge, T.A. (2009). A methods comparison for the isolation and detection of thermophilic Campylobacter in agricultural watersheds, 79(3), 307-313. http://dx.doi.org/10.1016/j.mimet.2009.09.024
- Larsbo, M., Lapen, D.R., Topp, E., Metcalfe, C., Abbaspour, K.C., Fenner, K. (2009). Simulation of pharmaceutical and personal care product transport to tile drains after biosolids application, 38(3), 1274-1285. http://dx.doi.org/10.2134/jeq2008.0301
- Lawrence, J.R., Zhu, B., Swerhone, G.D.W., Roy, J., Wassenaar, L.I., Topp, E., Korber, D.R. (2009). Comparative microscale analysis of the effects of triclosan and triclocarban on the structure and function of river biofilm communities, 407(10), 3307-3316. http://dx.doi.org/10.1016/j.scitotenv.2009.01.060
- Mirzaagha, P., Louie, M., Read, R.R., Sharma, R., Yanke, L.J., Topp, E., McAllister, T.A. (2009). Characterization of tetracycline- and ampicillin-resistant Escherichia coli isolated from the feces of feedlot cattle over the feeding period, 55(6), 750-761. http://dx.doi.org/10.1139/W09-015
- Roy, C.S., Talbot, G., Topp, E., Beaulieu, C., Palin, M.F., Massé, D.I. (2009). Bacterial community dynamics in an anaerobic plug-flow type bioreactor treating swine manure, 43(1), 21-32. http://dx.doi.org/10.1016/j.watres.2008.09.034
- Sabourin, L., Beck, A., Duenk, P.W., Kleywegt, S., Lapen, D.R., Li, H., Metcalfe, C.D., Payne, M., Topp, E. (2009). Runoff of pharmaceuticals and personal care products following application of dewatered municipal biosolids to an agricultural field, 407(16), 4596-4604. http://dx.doi.org/10.1016/j.scitotenv.2009.04.027
- Sharma, R., Larney, F.J., Chen, J., Yanke, L.J., Morrison, M., Topp, E., McAllister, T.A., Yu, Z. (2009). Selected antimicrobial resistance during composting of manure from cattle administered sub-therapeutic antimicrobials, 38(2), 567-575. http://dx.doi.org/10.2134/jeq2007.0638
- Sharma, R., Munns, K., John, S.J., Penner, G., Oba, M., Topp, E., Beauchemin, K.A. (2009). Commensal fecal escherichia coli diversity in dairy cows at high and low risk for incurring subacute ruminal acidosis, 6(8), 973-980. http://dx.doi.org/10.1089/fpd.2009.0270
- Sharma, R., Stanford, K.I.M., Louie, M., Munns, K., John, S.J., Zhang, Y., Gannon, V.P.J., Chui, L., Reade, R., Topp, E., and McAllister, T.A. (2009). "Escherichia coli O157:H7 Lineages in Healthy Beef and Dairy Cattle and Clinical Human Cases in Alberta, Canada.", Journal of Food Protection, 72(3), pp. 601-607.
- Talbot, G., Roy, C.S., Topp, E., Beaulieu, C., Palin, M.F., Massé, D.I. (2009). Multivariate statistical analyses of rDNA and rRNA fingerprint data to differentiate microbial communities in swine manure, 70(3), 540-552. http://dx.doi.org/10.1111/j.1574-6941.2009.00749.x
- Topp, E., Scott, A., Lapen, D.R., Lyautey, E., Duriez, P. (2009). Livestock waste treatment systems for reducing environmental exposure to hazardous enteric pathogens: Some considerations, 100(22), 5395-5398. http://dx.doi.org/10.1016/j.biortech.2008.11.001
- Wilkes, G., Edge, T., Gannon, V., Jokinen, C., Lyautey, E., Medeiros, D., Neumann, N., Ruecker, N., Topp, E., Lapen, D.R. (2009). Seasonal relationships among indicator bacteria, pathogenic bacteria, Cryptosporidium oocysts, Giardia cysts, and hydrological indices for surface waters within an agricultural landscape, 43(8), 2209-2223. http://dx.doi.org/10.1016/j.watres.2009.01.033
Other science related publications
2018
- Khan, I.U.H., Miltenburg, M.G., Cloutier, M., Islam, O., Lapen, D.R., Wilkes, G., Talbot, G., Topp, E. 2018. Quantitative assessment of agricultural water quality, human and animal feces for prevalence of Arcobacter faecis and A. lanthieri. ASM (American Society for Microbiology) Microbe 2018. June 07-11, 2018, Atlanta, GA.
2016
- Fock-Chow-Tho, D., Topp, E., Ibeagha-Awemu, E.M., and Bissonnette, N. (2016). "Comparison of commercial DNA extraction and QPCR systems for a better sensitivity in detecting the causative paratuberculosis pathogen in dairy cow fecal samples.", 13th International Colloquium on Paratuberculosis, Nantes, France, 19-24 June, 2016, P-03.18, pp. 98. (Abstract)
2015
- Chen, J., Nadya, S., Allen, K.J., Johnson, R., Ziebell, K.A., Bach, S., Topp, E., and Delaquis, P.J. (2015). "Phenotypic and genotypic characterization of antimicrobial resistance in Shiga toxin-producing Escherichia coli isolated from surface water in the Lower Mainland of British Columbia.", VTEC 2015, Boston, MA, USA, September 13-16, 2015. (Abstract)
- Chen, J., Nadya, S., Allen, K.J., Johnson, R.P., Ziebell, K.A., Zeibell, K., Bach, S.J., Topp, E., and Delaquis, P.J. (2015). "Phenotypic and genotypic characterization of antimicrobial resistance in Shiga toxin-producing Escherichia coli isolated from surface water in the Lower Mainland of British Columbia.", VTEC 2015, Boston, MA, USA, September 13-16, 2015.
- Delaquis, P.J., Bach, S.J., Bezanson, G.S., Topp, E., McKellar, R., Blais, B., and Peréz Rodriguez, F. (2015). Phenotypic diversity in Escherichia coli O157:H7 and its influence on survival in leafy vegetables. Research Project Annual Report. AAFC Project ID J-000132. (Report)
- Delaquis, P.J., Nadya, S., Chen, J., Allen, K.J., Johnson, R., Ziebell, K.A., Bach, S., and Topp, E. (2015). "Prevalence, phenotypic and genotypic characteristics of Shiga toxin-producing Escherichia coli isolated from irrigation waters in a Canadian urban-agricultural landscape.", VTEC 2015, Boston, MA, USA, September 13-16, 2015. (Abstract)
- Delaquis, P.J., Nadya, S., Chen, J., Allen, K.J., Johnson, R.P., Ziebell, K.A., Bach, S.J., and Topp, E. (2015). "Prevalence, phenotypic and genotypic characteristics of Shiga toxin-producing Escherichia coli isolated from irrigation waters in a Canadian urban-agricultural landscape.", VTEC 2015, Boston, MA, USA, September 13-16, 2015.
- Diarra, M.S., Delaquis, P.J., Topp, E., McCallum, J.L., Ehret, D.L., Malouin, F., Gong, J., Brar, S.K., and Ross, K.A. (2015). Fruit Pomaces to Improve Immunity and Health of Organic Chickens. Project ID: AIP-CL02 – Organic Science Cluster II; Research Project Annual Report 2014-2015. AIP-CL02 – Organic Science Cluster II. (Report)
- Fernando, E., Khan, I.U.H., Loewen, P., Lapen, D.R., Talbot, G., Topp, E., and Kumar, A. (2015). "Expressions and characterization of Acinetobacter spp. From Canadian Agricultural niches.", 65th Annual Canadian Society of Microbiologists Annual Conference, University of Regina, Regina, Saskatchewan, Canada, June 15-18, 2015, AE46PC. (Poster)
- Fock-Chow-Tho, D., Topp, E., and Bissonnette, N. (2015). "Comparison of commercial DNA extraction and detection kits for a better sensitivity in detecting the causative paratuberculosis pathogen in dairy cow fecal samples.", 65th Annual Canadian Society of Microbiologists Annual Conference, University of Regina, Regina, Saskatchewan, Canada, June 15-18, 2015. (Poster)
- Islam, R., Yin, X., Lepp, D., Topp, E., and Diarra, M.S. (2015). "Comparative genomics of Escherichia coli isolated from soil fertilized with litter of chicken fed with or without tetracycline.", 2015 International Association of Food Protection (IAFP), Portland, Oregon, USA, July 25-28, 2015. (Abstract)
- Khan, I.U.H., Cloutier, M., Lapen, D.R., Topp, E., Wilkes, G.A., Jones, T., Brassard, J., Edge, T.A., and Talbot, G. (2015). "Quantitative detection and assessment of occurrence of human and animal viruses in agricultural aquatic environment.", 65th Annual Canadian Society of Microbiologists Annual Conference, University of Regina, Regina, Saskatchewan, Canada, June 15-18, 2015, S4-06. (Poster)
- Khan, I.U.H., Cloutier, M., Lapen, D.R., Topp, E., Wilkes, G.A., Jones, T.H., Brassard, J., Edge, T.A., and Talbot, G. (2015). "Quantitative detection and assessment of occurrence of human and animal viruses in agricultural aquatic environment.", 65th Annual Canadian Society of Microbiologists Annual Conference, University of Regina, Regina, Saskatchewan, Canada, June 15-18, 2015. (Poster)
- Khan, I.U.H., Topp, E., Chen, W., Lapen, D.R., Lévesque, C.A., Pintar, K.D.M., Tambong, J.T., Talbot, G., and Wilkes, G.A. (2015). "Assessment of Zoonotic Pathogens in Agroecosystem.", Biodiversity, Bioresources and Collection Science Day, Ottawa Research and Development Center, Agriculture and Agri-Food Canada, Ottawa, ON, Canada, December 1-2, 2015. (Presentation)
- Kolotilin, I., Topp, E., Cox, E., Devriendt, B., Conrad, U., Joensuu, J.J., Stöger, E., Warzecha, H., McAllister, T.A., McLean, M.D, Hall, J.C., and Menassa, R. (2015). "Plant-based solutions for veterinary immunotherapeutics and prophylactics.", BMC Veterinary Research, 45(1), pp. 375. (Abstract)
- Lévesque, C.A., Chen, W., Hambleton, S., Seifert, K.A., Adam, Z., Bilodeau, G.J., Cullis, J., Demeke, T., Dumonceaux, T.J., Gagnon, M., Graefenhan, T., Kawchuk, L.M., Khan, I.U.H., Lewis, C.T., Li, X., Links, M.G., Mimee, B., Rott, M., Tambong, J.T., Topp, E., Yu, Q., and Yuan, K. (2015). Project CRTI 09-462RD - Next generation sequencing, direct detection and genotyping of fungi, bacteria and nematodes in the agri-food system. DRDC-RDDC-2015-C148. Final Close-Out Report. (Report)
- Talbot, G., Auffret, M., Gagnon, N., Masse, L., Barret, M., and Topp, E. (2015). "Relationship between methanogenesis and transcriptional activity of Methanoculleus spp. In stored dairy cow and swine manures.", 65th Annual Canadian Society of Microbiologists Annual Conference, University of Regina, Regina, Saskatchewan, Canada, June 15-18, 2015, Invited speaker – short talk SAE-04 in the Applied and Environmental Microbiology Section.
- Talbot, G., Yin, X., Service, C., Ziebell, K.A., Gagnon, N., Auffret, M., Topp, E., and Diarra, M.S. (2015). "Characterization of ceftiofur-resistant Escherichia coli isolated from dairy cattle manures.", 65th Annual Canadian Society of Microbiologists Annual Conference, University of Regina, Regina, Saskatchewan, Canada, June 15-18, 2015, AE37. (Poster)
2014
- Alexander, T.W., McAllister, T.A., Stanford, K.I.M., Reuter, T.R., and Topp, E. (2014). "Characterization of Shiga toxin-producing Escherichia coli isolated from feces of cattle in commercial feedlots.", ADSA-ASAS 2014 Joint Annual Meeting, Kansas City, MO, USA, July 20-24, 2014.
- Barret, M., Auffret, M., Gagnon, N., Topp, E., Masse, L., Massé, D.I., and Talbot, G. (2014). "Influence of seasonal temperature variation on methanogen communities and methanogenesis in manure storage tanks.", XVIth International Congress of Virology - International Union of Microbiological Societies (IUMS 2014), July 27 - August 1, 2014, Montréal, Québec, Canada. (Poster)
- Delaquis, P.J., Bach, S.J., Bezanson, G.S., Topp, E., McKellar, R., Blais, B., and Peréz Rodriguez, F. (2014). Phenotypic diversity in Escherichia coli O157:H7 and its influence on survival in leafy vegetables. Research Project Annual Report. AAFC Project ID J-000132. (Report)
- Diarra, M.S., Diarrassouba, F., Proudfoot, J., Rempel, H., Topp, E., and Prichard, J. (2014). "Fate of antibiotic resistant enterococci during broiler chicken production.", 54th Annual Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC) of American Society for Microbiology, Washington DC, USA, September 5-9, 2014.
- Edge, T.A., Hill, S., Khan, I.U.H., Gannon, V.P.J., Crane, C., Collins, H.M., Johnson, R., Topp, E., and Roberts, C. (2014). "Microbial source tracking of pathogen and fecal pollution in shellfish harvesting areas in Atlantic Canada.", XVIth International Congress of Virology - International Union of Microbiological Societies (IUMS 2014), July 27 - August 1, 2014, Montréal, Québec, Canada, July 27-August 1, 2014.
- Hartmann, A. and Topp, E. (2014). "Gènes de résistance aux antibiotiques dans les effluents d’origine agricole ou urbaine. Anses - Agence nationale de sécurité sanitaire de l’alimentation, de l’environnement et du travail.", Bulletin de veille scientifique n° 25, Santé /Environnement /Travail, Décembre 2014, pp. 30-34.
- Khan, I.U.H., Cloutier, M., Topp, E., Lapen, D.R., Lévesque, C.A., Edge, T.A., Tambong, J.T., Talbot, G., and Wilkes, G.A. (2014). "Quantitative Detection and Identification of Arcobacter, Campylobacter and Helicobacter Species in a Canadian Agricultural Watershed.", XVIth International Congress of Virology - International Union of Microbiological Societies (IUMS 2014), July 27 - August 1, 2014, Montréal, Québec, Canada, July 27-August 1, 2014.
- McKellar, R.C., Peréz Rodriguez, F., Harris, L.J., Moyne, A.-L., Blais, B., Topp, E., Bezanson, G.S., Bach, S.J., and Delaquis, P.J. (2014). "Evaluation of mathematical models to describe Escherichia coli O157:H7 decay on field-grown leafy vegetables.", Annual Meeting of the International Association for Food Protection (IAFP), Indianapolis, USA, August 3-6, 2014, Oral presentation. (Abstract)
- Nadya, S., Allen, K.J., Johnson, R.P., Ziebell, K.A., Topp, E., Delaquis, P.J., and Bach, S.J. (2014). "A comparison of the presence of total Escherichia coli and Shiga-toxigenic E. coli in irrigation waters from an intensive agricultural region.", United Fresh 2014, Chicago, IL, USA, June 10-14, 2014, Abstract. (Poster)
2013
- Delaquis, P.J., Bach, S.J., McKellar, R., Bezanson, G.S., and Topp, E. (2013). "Survival of six Shiga-toxigenic Escherichia coli serotypes in field lettuce.", 58th Annual Meeting of the International Association of Food Protection (IAFP 2013), Charlotte Convention Center, Charlotte, NC, USA, July 28-31, 2013. (Poster)
- Fung, S., Rempel, H., Forgetta, V., Dewar, K., Topp, E., and Diarra, M.S. (2013). "Ceca Microbiome of Mature Broiler Chickens Fed with or without Salinomycin.", Keystone Symposia: The Gut Microbiome: The Effector/Regulatory Immune Network (B3), Taos, New Mexico, USA, February 10-15, 2013.
- Fung, S., Rempel, H., Forgetta, V., Dewar, K., Topp, E., and Diarra, M.S. (2013). "Ceca Microbiome of Mature Broiler Chickens Fed with or without Salinomycin.", Keystone Symposium: The Gut Microbiome: The Effector/Regulatory Immune Network (B3), Taos, NM, USA, February 10-15, 2013.
- Kaneza, C.A., Whiteduck-Leveillee, K., Whiteduck-Leveillee, J., Laprade, N., Topp, E., Guylaine, T., Lapen, D.R., Tambong, J.T., Lévesque, C.A., and Khan, I.U.H. (2013). "Identification and detection of Arcobacter spp. From water and fecal matter using genus- and species-specific PCR assays.", La Cité Collégiale, Ottawa, ON, Canada, April 26, 2013.
- Kaneza, C.A., Whiteduck-Leveillee, K., Whiteduck-Leveillee, J., Laprade, N., Topp, E., Guylaine, T., Lapen, D.R., Tambong, J.T., Lévesque, C.A., and Khan, I.U.H. (2013). "Identification and detection of Arcobacter spp. from water and fecal matter using genus- and species-specific PCR assays.", La Cité Collégiale, Ottawa, ON, Canada, April 26, 2013. (Poster)
- Khan, I.U.H., Cloutier, M., Edge, T.A., Schellhorn, H.E., Gupta, R.S., Laprade, N., Topp, E., Guylaine, T., Lapen, D.R., Tambong, J.T., Wilkes, G.A., Nowak, E.K., and Hill, S. (2013). "A comparative study on the prevalence of thermophilic Campylobacter spp. In agricultural and recreational waters.", Canadian Society of Microbiologists (CSM) 63rd Annual Conference / Conférence annuelle de la Société Canadienne des Microbiologistes (SCM), Ottawa, ON, Canada, June 17-20, 2013.
- Léveillée, K., Laprade, N., Léveillée, W.J., Topp, E., Lapen, D.R., Tambong, J.T., Talbot, G., Wilkes, G.A., and Khan, I.U.H. (2013). "Antimicrobial resistance profiling of Arcobacter butzleri isolates from faecal sources and an agricultural watershed.", 63rd Annual Conference of the Canadian Society of Microbiologists, Carleton University, Ottawa, ON, Canada, June 17-20, 2013, Abstract AE87.
- Léveillée, W.J., Kaneza, C.A., Léveillée, K., Talbot, G., Topp, E., Lapen, D.R., Tambong, J.T., Lévesque, C.A., and Khan, I.U.H. (2013). "Optimization of a genus-specific PCR assay and restriction fragment length polymorphism (RFLP) analysis for rapid detection.", 63rd Annual Conference of the Canadian Society of Microbiologists, Carleton University, Ottawa, ON, Canada, June 17-20, 2013, Abstract AE88.
- Léveillée, W.J., Kaneza, C.A., Léveillée, K., Talbot, G., Topp, E., Lapen, D.R., Tambong, J.T., Lévesque, C.A., and Khan, I.U.H. (2013). "Optimization of multiplex PCR assays for the detection of virulence genes in Arcobacter species isolated from fecal samples.", 63rd Annual Conference of the Canadian Society of Microbiologists, Carleton University, Ottawa, ON, Canada, June 17-20, 2013, Abstract AE86.
- Laprade, N., Whiteduck-Léveillée, J., Whiteduck-Leveillee, K., Cloutier, M., Tambong, J.T., Topp, E., Lapen, D.R., Wilkes, G.A., and Khan, I.U.H. (2013). "Detection of virulence, toxin and tet(O) resistant genes in thermophilic Campylobacter species using multiplex PCR assays.", Canadian Society of Microbiologists (CSM) 63rd Annual Conference / Conférence annuelle de la Société Canadienne des Microbiologistes (SCM), Ottawa, ON, Canada, June 17-20, 2013.
- Simmons, K., Rempel, H., Block, G.S., Delaquis, P.J., Topp, E., and Diarra, M.S. (2013). "Identification and prevalence of Escherichia fergusonii in broiler chickens.", 58th Annual Meeting of the International Association of Food Protection (IAFP 2013), Charlotte Convention Center, Charlotte, NC, USA, July 28-31, 2013.
- Simmons, K., Rempel, H., Block, G.S., Delaquis, P.J., Topp, E., and Diarra, M.S. (2013). "Identification and prevalence of Escherichia fergusonii in broiler chickens.", 102nd IAFP Meeting, Charlotte, North Carolina, USA, July 28-31, 2013.
- Simmons, K., Rempel, H., Block, G.S., Topp, E., and Diarra, M.S. (2013). "Antimicrobial resistance in Escherichia fergusonii isolated from commercial broiler chickens.", 53rd Annual Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC) of American Society for Microbiology, Denver, Colorado, USA, September 10-13, 2013, #1561. (Poster)
- Talbot, G., Barret, M., Gagnon, N., and Topp, E. (2013). "Use of specific methanogen inhibitors and molecular analyses to elucidate biochemical pathways of methanogenesis in swine manure.", 63rd Annual Conference of the Canadian Society of Microbiologists, Carleton University, Ottawa, ON, Canada, June 17-20, 2013. (Abstract)
- Topp, E., Lanthier, M., Diarra, M.S., Delaquis, P.J., Bach, S.J., McAllister, T.A., Sharma, R., Inglis, G.D., Masse, D., Bezanson, G.S., Bittman, S., Talbot, G., Masse, L., Brassard, J., Houde, A., Jones, T.H., Lapen, D.R., van Bochove, É., Gannon, V.P.J., Pintar, K.D.M., Masson, L., Neumann, N.F., and Koning, W. (2013). Assessment and management of on-farm fate of microbial and chemical contaminants carried in human and animal wastes used as organic fertilizers. Final Report SAGES #1462. (Report)
- Whiteduck-Leveillee, J., Whiteduck-Leveillee, K., Kaneza, C.A., Cloutier, M., Laprade, N., Topp, E., Guylaine, T., Lapen, D.R., Tambong, J.T., Lévesque, C.A., and Khan, I.U.H. (2013). "Multiplex PCR assay for the detection and identification of virulent genes in Arcobacter species.", Canadian Society of Microbiologists (CSM) 63rd Annual Conference / Conférence annuelle de la Société Canadienne des Microbiologistes (SCM), Ottawa, ON, Canada, June 17-20, 2013.
- Whiteduck-Leveillee, K., Laprade, N., Whiteduck-Leveillee, J., Topp, E., Kaneza, C.A., Lapen, D.R., Tambong, J.T., Guylaine, T., Wilkes, G.A., and Khan, I.U.H. (2013). "Antimicrobial resistance profiling of Arcobacter butzleri isolated from a Canadian agricultural watershed.", Canadian Society of Microbiologists (CSM) 63rd Annual Conference / Conférence annuelle de la Société Canadienne des Microbiologistes (SCM), Ottawa, ON, Canada, June 17-20, 2013.
- Whiteduck-Leveillee, K., Whiteduck-Leveillee, J., Kaneza, C.A., Laprade, N., Topp, E., Guylaine, T., Lapen, D.R., Tambong, J.T., Lévesque, C.A., and Khan, I.U.H. (2013). "Development of genus-specific PCR assay for rapid identification of Arcobacter species: Optimization of PCR Primers and Conditions, and Restriction Pattern Analysis.", Canadian Society of Microbiologists (CSM) 63rd Annual Conference / Conférence annuelle de la Société Canadienne des Microbiologistes (SCM), Ottawa, ON, Canada, June 17-20, 2013.
2012
- Diarra, M.S., Rempel, H., Bach, S.J., Harlton, C.E., Delaquis, P.J., Pritchard, J., Aslam, M.N., Leslie, M., and Topp, E. (2012). "Distribution of antibiotic resistance phenotypes and genotypes among Salmonella spp. Isolated from broiler chickens in British Columbia.", 101st Annual Meeting of the International Association of Food Protection (IAFP 2012), Rhode Island Convention Center, Providence, RI, USA, July 22-25, 2012, Poster ID# 2398. (Poster)
- Diarra, M.S., Rempel, H., Champagne, J., Masson, L., and Topp, E. (2012). "Diversity of multiple antibiotic resistant enterococci from broiler chicken fed antimicrobial supplemented Diets.", 52nd Annual Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC) of American Society for Microbiology, San Francisco, CA, USA, September 9-12, 2012, Poster # 1914. (Poster)
- Marti, R., Fremaux, B., Edge, T.A., Topp, E., and Yost, C.K. (2012). "Les méthodes de typages des sources microbiennes au Canada.", Revue Techniques - Sciences - Méthodes (TSM), 2012(3), pp. 65-79.
- Ruecker, N.J., Matsune, J.C., Lapen, D.R., Schreier, H., van Bochove, É., Koning, W., Edge, T.A., Topp, E., Sensen, C.W., Xiao, L., and Neumann, N.F. (2012). "Phylogenetic processes for analyzing the sequence diversity of Cryptosporidium from environmental samples used for source tracking.", American Water Works Association (AWWA) Water Quality Technology Conference and Exposition 2011, Phoenix Convention Center, Phoenix, Arizona, USA, November 13-17, 2011, pp. 2106-2117.
- Talbot, G., Barret, M., Gagnon, N., Kalmokoff, M.L., Topp, E., and Neufeld, J.D. (2012). "Methanoculleus spp. Are major contributors to methane emissions in swine and dairy manure storage tanks.", Canadian Society of Microbiologists (CSM) 62nd Annual Conference / Conférence annuelle de la Société Canadienne des Microbiologistes (SCM), Vancouver, BC, Canada, June 20-23, 2012, Abstract AE076.
- Topp, E. (2012). "Antibiotic resistance and the environment.", Antibiotic Resistance, whose responsibility is it?, Annual Ontario Public Health Convention, Toronto, ON, Canada, April 4, 2012. (Presentation)
2011
- Barret, M., Gagnon, N., Morissette, B., Topp, E., Massé, D.I., Masse, L., and Talbot, G. (2011). "Methanogenesis in Swine Manure Storage Tanks: Towards the Identification of the Active Microorganisms.", 111th General Meeting of American Society for Microbiology (ASM2011), New Orleans, LA, USA, May 21-24, 2011.
- Barret, M., Neufeld, J.D., Gagnon, N., Kalmokoff, M.L., Topp, E., Verastegui, Y., and Talbot, G. (2011). "Active methanogens in swine manure storage tanks revealed by stable isotope probing.", Canadian Society of Microbiologists (CSM) 61st Annual Conference / Conférence annuelle de la Société Canadienne des Microbiologistes (SCM), Memorial University of Newfoundland, St. John's, NL, Canada, June 20-23, 2011, Abstract AE74. (Abstract)
- Barret, M., Neufeld, J.D., Gagnon, N., Kalmokoff, M.L., Topp, E., Verastegui, Y., and Talbot, G. (2011). "Identification of the active methanogens in swine manure storage tanks by DNA Stable Isotope Probing.", 1er Symposium du Centre de recherche et de développement sur le bovin laitier et le porc: Parlons science au CRDBLP! / 1st Symposium of the Dairy and Swine Research and Development Centre: Let’s Talk Science at the DSRDC!, Sherbrooke, QC, Canada, June 7, 2011.
- Diarra, M.S., Vela, J., Hilderbrand, K., Metcalfe, A., Rempel, H., Bittman, S., and Topp, E. (2011). "Antibiotic resistance of Staphylococcus xylosus isolated from broiler barn bioaerosol.", 51st Annual Conference of the Pacific Northwest International Section (PNWIS) of the Air & Waste Management Association, Harrison, BC, Canada, November 8-11, 2011, Oral presentation.
- Jokinen, C.C., Mutschall, S.K., Ross, S.L., Buchanan, C., Kindt, A., Koning, W., Miller, J.J., Edge, T.A., Topp, E., Thomas, J.E., Gannon, V.P.J., and Taboada, E.N. (2011). "Application of comparative genomics-based genotyping to the molecular epidemiology of Campylobacter jejuni from the Oldman River watershed in southern Alberta, Canada.", 15th Annual Federal Food Safety and Nutrition Research Meeting (FFSNRM), Ottawa, ON, Canada, December 6, 2011. (Presentation)
- Jokinen, C.C., Mutschall, S.K., Ross, S.M., Buchanan, C., Kindt, A., Koning, W., Miller, J., Edge, T.A., Topp, E., Thomas, J., Gannon, V.P.J., and Taboada, E.N. (2011). "Application of comparative genomics-based genotyping to the molecular epidemiology of Campylobacter jejuni from the Oldman River watershed in southern Alberta, Canada.", 16th International Workshop on Campylobacter, Helicobacter, and Related Organisms (CHRO 2011), Vancouver, BC, Canada, August 28 -September 1, 2011. (Presentation)
- Kalmokoff, M.L., Waddington, L.M., Thomas, M.B., Liang, K.-L., Ma, C., Topp, E., Desranleau Dandurand, U., Letellier, A., Matias, F., and Brooks, S.P.J. (2011). "Continuous feeding of antimicrobial growth promoters to commercial swine during the growing/finishing phase does not modify faecal community erythromycin resistance of community structure.", Joint UK-Canada gut health meeting, Guelph & St Hyacinthe, Canada, February, 2011. (Presentation)
- Larney, F.J., Cessna, A.J., Kuchta, S.L., Hao, X., Entz, T., Topp, E., and McAllister, T.A. (2011). "Composting effects on antibiotics in feedlot manure.", Manure Management Update 2011, Lethbridge, AB, Canada, January 17, 2011, pp. 46-54.
- Nangia, V., Sunohara, M., Topp, E., Gregorich, E.G., Gottschall, N., Drury, C.F., Toussef, M.A., and Lapen, D.R. (2011). "Assessing field-scale effects of controlled tile drainage on N mass balance from corn and soybean fields in Eastern Ontario, Canada.", 2011 ASA-CSSA-SSSA International Annual Meeting: Fundamental for life: soil, crop and environmental sciences, San Antonio, TX, USA, October 16-19, 2011.
- Nangia, V., Sunohara, M., Topp, E., Gregorich, E.G., Gottschall, N., Drury, C.F., and Lapen, D.R. (2011). "Measuring the effects of watertable management on soil greenhouse gas emissions from corn and soybean fields in Eastern Canada.", 2011 ASA-CSSA-SSSA International Annual Meeting: Fundamental for life: soil, crop and environmental sciences, San Antonio, TX, USA, October 16-19, 2011.
- Talbot, G., Barret, M., Massé, D.I., Masse, L., Kalmokoff, M.L., and Topp, E. (2011). "Methanogenesis in dairy and swine production.", 1er Symposium du Centre de recherche et de développement sur le bovin laitier et le porc: Parlons science au CRDBLP! / 1st Symposium of the Dairy and Swine Research and Development Centre: Let’s Talk Science at the DSRDC!, Sherbrooke, QC, Canada, June 7, 2011.
- Topp, E. (2011). "Antibiotic resistance and the environment.", Canadian Rural Health Research Society Annual Conference, Vancouver, BC, Canada, October 20-22, 2011.
- Topp, E. (2011). "Microbial Source Tracking for identifying sources of pollution and managing water quality.", Raisin River Source Water Protection Committee, Casselman, ON, Canada, January 27, 2011. (Presentation)
- Yost, C.K., Diarra, M.S., and Topp, E. (2011). "Animals and human as source of fecal indicator bacteria.", in Sadowsky, M. J. and R. L. Whitman (eds.) - The Fecal Bacteria, American Society for Microbiology (ASM), Chapter 4, pp. 67-91.
2010
- Diarra, M.S., Rempel, H., Leslie, M., Forge, T.A., Bittman, S., Kannangara, T., and Topp, E. (2010). "Persistence of antibiotic resistant Escherichia coli in soil fertilised with chicken litter.", 2nd American Society for Microbiology (ASM) Meeting on Antimicrobial Resistance in Zoonotic and Foodborne Pathogens in Animals, Humans and the Environment, Toronto, ON, Canada, June 8-11, 2010. (Poster)
- Edwards, M., Topp, E., Metcalfe, C.D., Li, H., Gottschall, N., Bolton, P., Curnoe, W.E., Payne, M., Beck, A., Kleywegt, S., and Lapen, D.R. (2010). "Pharmaceutical and personal care products in tile drainage following surface spreading and injection of dewatered municipal biosolids to an agricultural field [Science of the Total Environment (2009) 407, pp. 4220-4230] (Corrigendum).", Science of the Total Environment, 408(9), pp. 2180.
- Gagnon, N., Topp, E., Kalmokoff, M.L., Masse, L., Massé, D.I., and Talbot, G. (2010). "Novel fingerprint technology to assess the diversity of methanogens.", 13th International Symposium on Microbial Ecology (ISME13), Seattle, WA, USA, August 22-27, 2010. (Abstract)
- Gottschall, N., Edwards, M., Topp, E., Bolton, P., Payne, M., Curnoe, W.E., Ball Coelho, B.R., and Lapen, D.R. (2010). "Nitrogen, Phosphorus, and Bacteria Tile and Groundwater Quality Following Direct Injection of Dewatered Municipal Biosolids into Soil [Journal of Environmental Quality, 38(4), pp. 1783-1783] (Erratum No. 2).", Journal of Environmental Quality, 39(2), pp. 433.
- Inglis, G.D., Thomas, M.C., Selinger, L.B., Taboada, E.N., Boras, V.F., Koning, C.W., and Topp, E. (2010). "The role of water in the epidemiology of campylobacteriosis in southwestern Alberta.", Oldman Watershed Science Form, University of Lethbridge, Lethbridge, AB, Canada, October 20, 2010, Invited Speaker.
- Lanthier, M., Moreau, G., Cloutier, M., Goulet, B., Nossova, N., Lachapelle, N., Najem, D., Lapen, D.R., and Topp, E. (2010). "Antibiotic Resistance of Arcobacter butzleri isolates from the South Nation River Watershed, Ontario, Canada.", 2nd American Society for Microbiology (ASM) Meeting on Antimicrobial Resistance in Zoonotic and Foodborne Pathogens in Animals, Humans and the Environment, Toronto, ON, Canada, June 8-11, 2010.
- Rempel, H., Champagne, J., Masson, L., Pritchard, J., Topp, E., and Diarra, M.S. (2010). "DNA-Microarray for Molecular Characterization of Enterococcus isolates from broiler chicken.", 110th General Meeting of American Society for Microbiology (ASM2010), Town & Country Convention Center, San Diego, CA, USA, May 23-27, 2010. (Poster)
- Ruecker, N.J., Wilkes, G.A., Lapen, D.R., Topp, E., Edge, T.A., and Neumann, N.F. (2010). "Investigating the association between land use and cryptosporidium occurrence in the south nation watershed in eastern Ontario, Canada.", International Symposium on Waterborne Pathogens 2010, Manhattan Beach, CA, USA, May 2-4, 2010.
- Shtepani, I., Edge, T.A., Valeo, C., Khan, I.U.H., Gannon, V.P.J., Kent, R., Koning, W., Lapen, D.R., Medeiros, D.T., Miller, J., Phillips, R., Topp, E., van Bochove, É., Ruecker, N.J., and Neumann, N.F. (2010). "Source water protection: How well do traditional water quality indicators correlate with pathogen occurrence?", Water Quality Technology Conference and Exposition 2009, Seattle, WA, USA, November 15-19, 2009, pp. 3710-3720.
- Sunohara, M., Youssef, M.A., Topp, E., and Lapen, D.R. (2010). "Measured effect of agricultural drainage water management on hydrology, water quality, and crop yield.", Canadian Society for Bioengineering CSBE/SCGAB and CIGR jointly held 9th International Drainage Symposium, Québec City Convention Centre, Québec City, QC, Canada, June 13-16, 2010, Paper No. 711P0610e, pp. 392-401.
- Talbot, G., Topp, E., Kalmokoff, M.L., Roy, C.S., Brooks, S.P.J., Beaulieu, C., and Massé, D.I. (2010). "Archaeal community analysis along a plug-flow bioreactor treating swine manure.", Canadian Society of Microbiologists (CSM) 60th Annual Conference / Conférence annuelle de la Société Canadienne des Microbiologistes (SCM), Hamilton, ON, Canada, June 14-17, 2010.
- Thomas, M.C., Selinger, L.B., Topp, E., and Inglis, G.D. (2010). "Seasonal distribution of planktonic protists in southwestern Alberta.", Oldman Watershed Science Form, University of Lethbridge, Lethbridge, AB, Canada, October 20, 2010, Invited Speaker.
- Topp, E. (2010). "Distribution and dynamics of pathogenic and antibiotic-resistant enteric microorganisms at the farm and the watershed scale.", University of Guelph Veterinary School, Dept. of Pathobiology, Guelph, ON, Canada, May 7, 2010. (Presentation)
- Topp, E. (2010). "Drugs in Sludge - Assessing the risk when municipal biosolids are recycled onto agricultural land.", Institute of Environment and Health, McMaster University, Hamilton, ON, Canada, October 28, 2010. (Presentation)
- Topp, E. (2010). "Drugs in Sludge - Assessing the risk when municipal biosolids are recycled onto agricultural land.", University of Toronto Centre for Environment, Toronto, ON, Canada, March 4, 2010. (Presentation)
- Topp, E. (2010). "Drugs in Sludge: Fate Following Application to Agricultural Land.", Special symposium on pharmaceuticals and the environment- SETAC-Europe Pharmaceuticals Advisory Group, Seville, Spain, May 23, 2010, Invited talk.
- Topp, E., van Bochove, É., Edge, T.A., Flemming, C.A., Gannon, V.P.J., and Lanthier, M. (2010). "Fecal contamination in mixed activity watersheds: Developments in human risk assessment and risk management.", 14th IWA International Conference on Diffuse Pollution and Eutrophication, Beaupré, QC, Canada, September 12-17, 2010, Keynote speaker.
- van Bochove, É., Topp, E., Thériault, G., Denault, J.-T., Allaire, S.E., Dechmi, F., and Rousseau, A.N. (2010). "Coliforms.", in Eilers, W., MacKay, R., Graham, L., and Lefebvre, A. (eds.) - Environmental Sustainability of Canadian Agriculture: Agri-Environmental Indicator Report Series. Report #3//L'agriculture écologiquement durable au Canada : Série sur les indicateurs agroenvironnementaux - Rapport n° 3, Agriculture and Agri-Food Canada (AAFC)/Agriculture et Agroalimentaire Canada (AAC), Chapter 14, pp. 94-100.
2009
- Alexander, T.W., Inglis, G.D., Yanke, L.J., Topp, E., and McAllister, T.A. (2009). "Characterization of antimicrobial-resistant Escherichia coli from samples collected throughout processing of feedlot cattle at a commercial abattoir.", ADSA-CSAS-ASAS 2009 Joint Annual Meeting, Montréal Convention Center, Montréal, QC, Canada, July 12-16, 2009. (Poster)
- Delaquis, P.J., Bach, S.J., LeBlanc, D.I., Brassard, J., Houde, A., Villeneuve, S., Bezanson, G.S., Diarra, M.S., Topp, E., Blais, B., Gajadhar, A., Bisaillon, J.-R., Fazil, A.M., Gilmour, M., Mattison, K., and Bidawid, S. (2009). "A systems-based approach for the assessment of microbiological threats to the food supply.", 13th Annual Federal Food Safety and Nutrition Research Meeting (FFSNRM), Ottawa, ON, Canada, November 4-5, 2009. (Presentation)
- Frey, S.K., Rudolph, D.R., Lapen, D.R., Ball Coelho, B.R., and Topp, E. (2009). "Influence of Liquid Manure Application Methods on the Mobility of Dissolved Nutrient Species in Macroporous and Tile-Drained Soils.", 2009 Ground Water Summit, Hilton Tucson El Conquistador Golf & Tennis Resort, Tuscon, AZ, USA, April 21, 2009. (Presentation)
- Gottschall, N., Edwards, M., Topp, E., Bolton, J.M., Payne, M., Kleywegt, S., Curnoe, W.E., Ball Coelho, B.R., and Lapen, D.R. (2009). "Nitrogen, Phosphorus, and Bacteria Tile and Groundwater Quality Following Direct Injection of Dewatered Municipal Biosolids into Soil [Journal of Environmental Quality, 38(4), pp. 1783-1783] (Erratum).", Journal of Environmental Quality, 38(4), pp. 1783.
- Lanthier, M., Lapen, D.R., Cloutier, M., Goulet, B., Nossova, N., and Topp, E. (2009). "Isolation and Characterization of Arcobacter spp. From the South Nation Watershed, Ontario, Canada.", Canadian Society of Microbiologists (CSM) 59th Annual Conference / Conférence annuelle de la Société Canadienne des Microbiologistes (SCM), Concordia University, Montréal, QC, Canada, June 15-18, 2009, Abstract AE37. (Abstract)
- Lanthier, M., Lapen, D.R., Cloutier, M., Nossova, N., and Topp, E. (2009). "Isolation and Characterization of Arcobacter spp. From the South Nation Watershed, Ontario, Canada.", 109th General Meeting of American Society for Microbiology, Philadelphia, PA, USA, May 17-21, 2009, Abstract Q170. (Abstract)
- Lapen, D.R., Ball Coelho, B.R., Topp, E., Larsbo, M., and Rudolph, D.R. (2009 Internal). NM8001 - Risk of surface and groundwater contamination from land application of biosolids/manures on lands with subsurface drains and inlets. Report to Nutrient Management Joint Research Program, Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA). (Report)
- Sabourin, L., Beck, A., Duenk, P.W., Kleywegt, S., Lapen, D.R., Li, H.X., Metcalfe, C.D., Payne, M., and Topp, E. (2009). "Runnoff of pharmaceuticals and personal care products following application of dewatered municipal biosolids to an agricultural field [Science of the Total Environment 407 (2009) 4596-4604] (Erratum).", Science of the Total Environment, 407(22), pp. 5928-5930.
- Talbot, G., Roy, C.S., Topp, E., Beaulieu, C., Palin, M.-F., and Massé, D.I. (2009). "Anaerobic bacterial population dynamics during glucose and volatile fatty acid degradation.", 5th ASPD Specialised Conference: Microbial Population Dynamics in Biological Wastewater Treatment, Aalborg, Denmark, May 24-27, 2009, Abstract No. 11024.
- Talbot, G., Roy, C.S., Topp, E., Kalmokoff, M.L., Brooks, S.P.J., Beaulieu, C., Palin, M.-F., and Massé, D.I. (2009). "Multivariate analysis of microbial population quantitative data during start-up of a compartmentalized anaerobic bioreactor treating swine manure.", 5th ASPD Specialised Conference: Microbial Population Dynamics in Biological Wastewater Treatment, Aalborg, Denmark, May 24-27, 2009.
- Topp, E., Lapen, D.R., and Metcalfe, C.D. (2009). "The Agriculture and Agri-Food Canada Program to Assess and Manage the Transport of Microconstituents in Biosolids-Amended Soils.", Proceedings of the Water Environment Federation, Residuals and Biosolids, pp. 765-766.
- Topp, E., Ruecker, N.J., Wilkes, G.A., Lapen, D.R., and Neumann, N.F. (2009). "Faune et contamination des sources d’eau par Cryptosporidium et Giardia.", 22e Entretiens du Centre Jacques Cartier, École Nationale Vétérinaire de Lyon, Lyon, France, November 28-December 2, 2011, Invited talk.
- Yanke, L.J., Topp, E., and McAllister, T.A. (2009). "Persistence of antimicrobial resistant Enterococcus spp. in feedlot cattle feces.", 109th General Meeting of American Society for Microbiology, Philadelphia, PA, USA, May 17-21, 2009, pp. 616. (Poster)
Report a problem on this page
- Date modified: