Rizières traditionnelles Hani en terrasses (Yunnan, Chine) © Cirad, C. Vernière
© Cirad
© Cirad
Visualisation par microscopie confocale de la colonisation de vaisseaux conducteurs d'une feuille de riz par des bactéries pathogènes Xanthomonas oryzae marquées par une protéine fluorescente verte (GFP) .

Our mission:          Plant health

Optimal growth and absence of disease

  Our objectives

  • To understand how a plant interacts with microbes/bio-aggressors
  • Analyze the impact of these exchanges on its health
  • Propose solutions to ensure good crop productivity

Main crops concerned

Rice, wheat, banana, coffee, cocoa, sugar cane, cassava, barley, citrus

Studied organisms

Viruses,Bacteria, Fungi, Nematodes, Insects

more about it

Scientific animation

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Plant-pathogen interactions

  • Molecular mechanisms and genetics
  • Evolution of genomes and populations
  • Resistance durability and impact

3D image of a viral particles (P. Bron, CBS-INSERM, Montpellier), with an infected leaf in the background (M. Uzest, PHIM, Montpellier)

Virus-vector-plant interactions

  • Study of the relationships between viruses, their vectors and the plant at the molecular level.
  • Behaviour and evolution of the virus in the agricultural landscape

Towards an understanding of the phytobiome

  • Role of the microbiome in plant health
  • Interactions within microbial communities
  • Impact of the environment and cultural practices on plants and their microbiome

Weaver ants (Oecophylla longinoda) tending scale insects of family Stictococcidae on cocoa pods. Weaver ants are generalist predators that can regulate cocoa pests in plantations.   © Cirad Régis Babin

Understanding epidemics in the field

  • Influence of the environment on epidemics of bio-aggressors
  • Forecasting the risk of epidemics
  • Search for solutions to control their attacks