Tanya Arseneault, PhD

Image Tanya Arseneault
Section Head - Marine conservation

Leading a team of scientists working on marine protected areas (MPAs) and marine refuges in DFO's Gulf Region Science sector.

Current research and/or projects

  • Leading the scientific aspect of marine conservation files in Gulf Region
  • Collaborating with all regions nationally under the Marine Conservation Targets program (currently active until 2026)
  • Developping robust science-based monitoring indicators to assess the status of conservation objectives and inform adaptive management of protected areas.
  • Developping monitoring plans for Basin Head Marine Protected Area, and several marine refuges: Scallop Buffer Zones, Miramichi Bay Closure and some Cold-water coral Conservation areas (in collaboration with Quebec Region).

Research and/or project statements

  • Our role is to integrate available scientific knowledge and data, and generate new data to address gaps, in order to best monitor the status of conservation objectives in our marine protected area and refuges.
  • I value collaborative research and an ecosystemic approach where the sustainability and environmental impact of new marine conservation practises can be assessed as throughly as possible to avoid any unforeseen problems that result from them.
  • I believe that conserving and protecting marine ecosystems depends on several stakeholders, including the general public, and favour a clear communicative approach among all involved.

Education and awards

  • Natural Sciences and Engineering Research Council of Canada (NSERC) Postdoctoral Fellow at the University of Reading, UK, under the supervision of Drs Robert W. Jackson and Louise J. Johnson (July 2015-July 2016). Project title: Consequences of adaptive innovation in Pseudomonas spp. for physiology and plant colonization.
  • PhD in Life Sciences (Department of biology), Université de Moncton, NB, Canada, supervised by Dr Martin Filion. Successfully defended with special mention of excellence in June 2015. Diploma sanctioned in October 2015. Thesis title: Elucidation of the mechanisms involved in the biocontrol of common scab of potato by Pseudomonas fluorescens LBUM223, a producer of phenazine-1-carboxylic acid. Received the gold Governor General’s Academic Medal of Canada for the highest average of the postgraduate class of 2016.
  • BSc with specialization in biochemistry (May 2009, Université de Moncton, NB, Canada). Received the silver Governor General’s Academic Medal of Canada for the highest average of the undergraduate class of 2009.

International experience and/or work

  • Research scientist in root phytopathology at Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC (2016-2022).
  • Postdoctoral Fellow at the University of Reading, UK, under the supervision of Drs Robert W. Jackson and Louise J. Johnson (July 2015-July 2016)
  • MSc Internship (May-July 2010) at Utrecht University, Netherlands, supervised by Dr Corné Pieterse. Funded by NSERC (Michael Smith supplement). Project title: Exploration of genetic markers of induced resistance in potato (Solanum tuberosum) and Arabidopsis thaliana, following inoculation with the bacterial biocontrol agent Pseudomonas sp. LBUM223.

Key publications

Refereed publications from previous role:

  1. Arseneault, T., Roquigny, R., Novinscak, A., Goyer, C. and Filion, M. (2020) Phenazine-1-carboxylic acid producing Pseudomonas synxantha LBUM223 alters the transcriptome of Streptomyces scabies, the causal agent of potato common scab. Physiological and Molecular Plant Pathology 110:101480.
  2. Roquigny, R., Novinscak, A., Arseneault, T., Joly, D. L. and Filion, M. (2018) Transcriptome alteration in Phytophthora infestans in response to phenazine-1-carboxylic acid production by Pseudomonas fluorescens strain LBUM223. BMC Genomics 19:474.
  3. Dorati, F., Barrett, G. A., Sanchez-Contreras, M., Arseneault, T., San José Garcia, M., Studholme, D. J., Murillo, J., Caballero, P., Waterfield, N. R., Arnold, D. L., Shaw, E. J. and Jackson, R. W. (2018) Coping with Environmental Eukaryotes; Identification of Pseudomonas syringae Genes during the Interaction with Alternative Hosts or Predators.  Microorganisms 6(2): 32.
  4. Arseneault, T. & Filion, M. (2017) Biocontrol through antibiosis: Exploring the role played by subinhibitory concentrations of antibiotics in soil and their impact on plant pathogens. Canadian Journal of Plant Pathology 39(3): 267-274.
  5. Morrisson, C. K., Arseneault, T., Novinscak, A. and Filion, M. (2017) Phenazine-1-carboxylic acid production by Pseudomonas fluorescens LBUM636 alters Phytophthora infestans’ growth and late blight development. Phytopathology 107:273-279.
  6. Arseneault, T., Goyer, C., and Filion, M. (2016) Biocontrol of potato common scab is associated with high Pseudomonas fluorescens LBUM223 populations and phenazine-1-carboxylic acid biosynthetic transcripts accumulation in the potato geocaulosphere. Phytopathology 106: 963-970.
  7. Taylor, T. B., Mulley, G., McGuffin, L. J., Johnson, L. J., Brockhurst, M. A., Arseneault, T., Silby, M. W. and Jackson, R. W. (2015) Evolutionary rewiring of bacterial regulatory networks. Microb Cell 2(7):256-258.
  8. Arseneault, T., Goyer, C., and Filion, M. (2015) Pseudomonas fluorescens LBUM223 increases potato yield and reduces common scab symptoms in the field. Phytopathology 105:1311-1317.
  9. Roquigny, R.*, Arseneault, T.*, Gadkar, V. J., Novinscak, A., Joly, D. L., and Filion, M. (2015) Complete Genome Sequence of the Biocontrol Strain Pseudomonas fluorescens LBUM223. Genome Announc 3:e00443-15. *Contributed equally.
  10. Arseneault, T., Pieterse, C. M. J., Gérin-Ouellet, M., Goyer, C. and Filion, M. (2014) Long-term induction of defense gene expression in potato by Pseudomonas sp. LBUM223 and Streptomyces scabies. Phytopathology 104:926-932.
  11. Gadkar, V. J., Arseneault, T., and Filion, M. (2014) Fidelity and Representativeness of Two Isothermal Multiple Displacement Amplification Systems to Preamplify Limiting Amounts of Total RNA. Mol Biotechnol 56:377-385.
  12. Arseneault, T., Goyer, C., and Filion, M. (2013) Phenazine production by Pseudomonas sp. LBUM223 contributes to the biological control of potato common scab. Phytopathology 103:995–1000.
  13. St-Onge, R., Gadkar, V. J., Arseneault, T., Goyer, C., and Filion, M. (2011) The ability of Pseudomonas sp. LBUM 223 to produce phenazine-1-carboxylic acid affects the growth of Streptomyces scabies, the expression of thaxtomin biosynthesis genes and the biological control potential against common scab of potato. FEMS Microbiol Ecol 75:173-183.

Book chapter:

  1. Arseneault, T. and Filion, M. (2016) Phenazine-producing Pseudomonas spp. as biocontrol agents of plant pathogens. In : D. P. Singh, H. B. Singh and R. Prabha (ed) Microbial Inoculants in Sustainable Agricultural Productivity. Vol. II Functional Applications. Springer-Verlag Berlin Heidelberg, pp. 53-68.

Research facility

343 Université Avenue PO Box 5030
Moncton, NB E1C 9B6


  • Associate professor, Université de Moncton (2018-2021)
  • Member of Centre Sève (2019-2022)
  • Member of the Canadian Phytopathological Society (2017-2022)
  • Member of Quebec Society for the Protection of Plants (2017-2022).
    • Member of the Board of Directors from 2017-2022