Efficiency and sustainability of plant health management strategies

RESEARCH TOPICS

Our research focuses on the identification and characterization of candidate microorganisms, including viruses (bacteriophages), bacteria and antagonistic fungi, as well as the molecules they produce, to control plant diseases. We also investigate novel mechanisms and genes involved in plant immunity, such as those governing quantitative resistance and tolerance, durability and robustness of immunity in response to abiotic stresses. A key aspect of our work is evaluating the range of action, efficiency and durability of these innovative protection strategies.

MODELS

PathogensPlantsBiocontrol agents
Fungi: Botrytis cinerea, Sclerotinia sclerotiorum, Zymoseptoria tritici, Oidium neolycopersici, Fusarium proliferatum, Leveillula tauricapepper, melon, tomato, apricot, apple, kiwi, garlic, rapeseed, wheat

Antagonistic fungi, beneficial bacteria, bacteriophages

Bacteria: Pseudomonas syringae, Clavibacter michiganensis, Erwinia amylovora

Viruses : PVY, WMV, CMV, ToLCNDV, tobamovirus

APPROACHES/METHODOLOGIES

Phenotyping, quantitative genetics, association genetics (GWAS), functional genetics, molecular mechanisms, experimental evolution, modelling

MAIN OBJECTIVES

Designing innovative disease control methods

Nouveaux mécanismes d’immunité des plantes aux bioagresseurs

Novel mechanisms of plant immunity to pathogens

 

  • Novel classes of resistance genes (e.g. genes encoding factors required for the pathogen’s infectious cycle)
  • Genetic determinants of quantitative resistance and tolerance
  • Genetic determinants of immunity robustness under abiotic stresses
  • Genetic determinants of biocontrol efficiency
 
Agents/molécules de biocontrôle

Biocontrol agents/molecules

 

  • Bacteriophages
  • Bacteria and fungi
  • Lipopeptides
 
Autres méthodes innovantes de contrôle des maladies

Other control methods

 

  • Prophylaxis
  • Thermotherapy
  • UV-C
  • Nitrogen fertilisation
  • Plant defence stimulators

Improving the efficiency and sustainability of disease control methods

Évaluer le potentiel de durabilité des méthodes de contrôle des maladies (immunité, biocontrôle)

Assessing the durability potential of disease control methods (plant immunity, biocontrol)

 

 
Combiner plusieurs leviers (biocontrôle, immunité végétale, et autres méthodes) au sein de stratégies de protection intégrée pour renforcer leurs durabilité et efficacité

Combining multiple levers (biocontrol, plant immunity and other methods) in integrated protection strategies to enhance their sustainability and efficiency

 

 

Understanding the complex interactions that influence the efficiency of biocontrol: survival, establishment, colonisation and mode of action of biocontrol agents

Traduire des connaissances complexes et dispersées en outil d’aide à la décision pour les agriculteurs et les acteurs des filières agricoles

Translating complex and fragmented knowledge into practical decision-making tools for farmers and other players in the agricultural sector: the DeciControl participatory tool


 

Development of the R package landsepi

 

Optimising resistance deployment strategies at the landscape level: the landsepi model

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