Pierre-Luc
Chagnon

Écologie microbienne et comportementale

Chercheur associé
Agriculture Canada
pierre-luc.chagnon@umontreal.ca
514-343-2078

THÉMATIQUES DE RECHERCHE


Dans mon laboratoire, nous étudions les interactions plantes-microorganismes, et leur impact sur le fonctionnement des écosystèmes terrestres. Nous utilisons une grande variété d’approches (observationnelles et expérimentales) et de concepts (e.g., théorie des réseaux, écologie comportementale) pour tester des hypothèses fondamentales et appliquées en écologie végétale et microbienne. Un pan de ma recherche vise plus spécifiquement à mieux comprendre comment les traits des microorganismes peuvent nous aider à mieux prédire leur éventuelle utilité dans le cadre de diverses phytotechnologies (e.g., phytorémédiation de sols pollués, toits verts, restauration de berges).

Mots-clés: Écologie microbienne • Symbioses mycorhiziennes • Stratégies d’histoire de vie • Rétroactions plantes-sol • Assemblage des communautés • Réseaux écologiques • Écologie comportementale



ÉTUDIANTS


Étudiant.e.s au doctorat
Hiba Benmohamed
Béatrice Gervais-Bergeron, en codirection avec Michel Labrecque
Charbel Hanna, en codirection pour Stéphanie Pellerin et Jacques Brisson
Azza Larafa, en codirection avec Mamadou Lamine Fall (Agriculture Canada)
Vlad Parasquive, en codirection avec Jacques Brisson
Rolando Trejo-Pérez, en codirection avec Jacques Brisson

Étudiant.e.s à la maîtrise
Merlin Caron, en codirection avec Jacynthe Masse (Agriculture Canada)
Joey Chamard, en codirection pour Isabelle Laforest-Lapointe (University of Sherbrooke)
Béatrice Dubé, en codirection avec Sylvain Delagrange (UQO)
Coralie Pare-Ricard, en codirection avec Jacques Brisson
Lisa Pouliot
Émilie Seyer-Lamontagne
Geneviève Telmosse, en codirection avec Maxime Paré (UQAC)



ENSEIGNEMENT


Cours EDD-6050: Gestion de la biodiversité



  • Chagnon, P.-L., C. Brown, G.C. Stotz et J.F. Cahill Jr. 2018. Soil biotic quality lacks spatial structure and is positively associated with fertility in a northern grassland. Journal of Ecology, 106 (1): 195-206.
  • Bainard, L.D., P.-L. Chagnon, B.J. Cade-Menun, E.G. Lamb, K. LaForge, M. Schellenberg et C. Hamel. 2017. Plant communities and soil properties mediate agricultural land use impacts on arbuscular mycorrhizal fungi in the mixed prairie ecoregion of the north american great plains. Agriculture, Ecosystems & Environment, 249: 187-195.
  • Chagnon, P.L. et J. Brisson. 2017. The role of mycorrhizal symbioses in phytotechnology. Botany, 95: 971-982.
  • Urli, M., Brown, C., Narvaes-Perez, R., Chagnon, P.-L., Vellend, M. (2016). Increased seedling establishment via enemy-release at the upper elevational range limit of sugar maple (Acer saccharum), Ecology, 97: 3058-3069.
  • Dalpé, Y., Séguin, S., Chagnon, P.-L. (2016). Glomeromycetes from the Magdalen Islands archipelago: analyzing diversity and meta-community structure in a sand-dune ecosystem, Botany, 94: 1195-1208.
  • Chagnon, P.-L., Bradley, R.L., Klironomos, J.N. Mutualistic network assembly in a community context: the presence of neighbors matters. Soumis à Journal of Ecology.
  • Chagnon, P.-L. (2016). Seeing networks for what they are in mycorrhizal ecology, Fungal Ecology, 24: 148-154.
  • Chagnon, P.-L. Barber’s modularity outperforms boundary clumping to detect compartments in binary matrices, Acta Oecologica, re-soumis.
  • Chagnon, P.-L., Rineau, F., Kaiser, C. (2016). Mycorrhizas across scales: a journey between genomics, global patterns of biodiversity and biogeochemistry, New Phytolologist, 209: 913-916.
  • Chagnon, P.-L., U’ren, J.M., Miadlikowska, J., Lutzoni, F., Arnold, A.E. (2016). Interaction type influences ecological network structure more than local abiotic conditions: evidence from endophytic and endolichenic fungi at a continental scale, Oecologia, 180: 181-191.
  • Chagnon, P.-L., and Bainard, L.D. (2015). Using molecular biology to study mycorrhizal fungal community ecology: limits and perspectives, Plant Signalling and Behaviour, 10: e1046668, DOI:10.1080/15592324.2015.1046668
  • Hart, M.M., Aleklett, K., Chagnon, P.-L., et al. (2015). Navigating the labyrinth: A guide to sequence-based, community ecology of arbuscular mycorrhizal fungi, New Phytologist, 207: 235-247.
  • Chagnon, P.-L., Bradley, R.L. and Klironomos, J.N., Trait-based partner selection drives the assembly of a mycorrhizal network, Oikos, 124: 1609-1616.
  • Chagnon, P.-L. (2015). Characterizing the topology of ecological networks along gradients: the limits of metrics’ standardization, Ecological Complexity, 22: 36-39.
  • Chagnon, P.-L., and Bradley, R.L. (2015). The relative importance of host vigor and hormonal response to pathogens in controlling the development of arbuscular mycorrhizal fungi, Soil Biology and Biochemistry, 83: 40-42.
  • Chagnon, P.-L. and Bainard, L.D. (2014) Is root DNA a reliable proxy to assess arbuscular mycorrhizal community structure? Canadian Journal of Microbiology, 60: 619-624.
  • Chagnon, P.-L., Bradley, R.L. and Klironomos, J.N. (2014) Plant-fungal communities as ecological networks: the need to characterize more than interaction patterns, Fungal Ecology, 12: 10-13.
  • Chagnon, P.-L. (2014) Ecological and evolutionary implications of hyphal anastomosis in arbuscular mycorrhizal fungi, FEMS Microbiology Ecology, 88: 437-444.
  • Chagnon, P.-L. and Bradley, R.L. (2013) Evidence that soil nutrient stoichiometry controls the competitive abilities of arbuscular mycorrhizal vs. root-borne non-mycorrhizal fungi, Fungal Ecology, 6: 557-560.
  • Chagnon, P.-L., Bradley, R.L., Maherali, H. and Klironomos, J.N. (2013) A trait-based framework to understand life history of mycorrhizal fungi, Trends in Plant Science, 18(9): 484-491.
  • Chagnon, P.-L., Bradley, R.L. and Klironomos, J.N. (2012) Using ecological network theory to evaluate the causes and consequences of arbuscular mycorrhizal community structure, New Phytologist, 194: 307-312.
  • Chagnon, P.-L. and Bradley, R.L. (2011) On the use of sodium hexametaphosphate to extract spores of arbuscular mycorrhizal fungi from soil, Soil Biology and Biochemistry, 43: 2273-2274.
  • Bradley, R.L., Whalen, J.K., Chagnon, P.-L., Lanoix, M. and Alves, M.C. (2011) Nitrous oxide production and potential denitrification in soils from riparian buffer strips: Influence of earthworms and plant litter. Applied Soil Ecology, 47(1):6-13.

Institut de recherche en biologie vegetale.

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