Plant-Bacteria Interactions

We study interactions of plants and insects with symbiotic or pathogenic bacteria

Overview

Macro-organisms do not live alone. They live in world that abounds with microbes. While the large majority of these microbes have no -or a weak- impact on the hosting macro-organisms, some microbes engage in close interactions with them with either a positive (symbionts) or negative (pathogens) effect on the host fitness. Reciprocally, these molecular interactions contribute to the co-construction of specific ecological niches within the host that are exploited by symbiotic and pathogenic bacteria

The team analyses the eukaryotic and microbial functions (genes, proteins, metabolites, and signals) that are involved in interactions between plants or insects and bacteria. We also investigate agronomic and environmental issues, such as the development of innovative and environmentally friendly biocontrol approaches to protect plants from pathogens or biofertilizers to enhance plant growth.

Our model organisms are the endosymbiotic rhizobia and legumes (Sinorhizobium meliloti and Medicago plants as well as Bradyrhizobium species and soybean, Aeschynomene or Arachis plants), the gut symbiont Burkholderia insecticola and its insect host, the stinkbug Riptortus pedestris, the plant pathogen Agrobacterium tumefaciens that induces tumors on various host plants, including tomatos, and the pectinolytic pathogens Pectobacterium spp. and Dickeya spp. and their potato host plant.

Our experimental approaches are functional genomics (transcriptomics, comparative genome analysis, transposon sequencing), genetics and reverse genetics, protein biochemistry and cell biology in the hosts, plants or insects, and in the bacteria. This multi-disciplinary approach allows to study inter or intra-bacterial signaling, host-to-bacteria signaling, and bacteria-to-host signaling.

Topics

team

Denis FAURE - Peter MERGAERT

Denis FAURE &
Peter MERGAERT

Group Leaders

Senior Researcher

Tania TIMTCHENKO

Researcher

Emanuele BIONDI

Researcher

Benoît ALUNNI

Lecturer

Jérémy CIGNA

Engineer

Aya YOKOTA

Engineer

Raynald COSSARD

Engineer assistant

Roza MOHAMMEDI

Engineer

Catherine GRANDCLEMENT

Research engineer

Romain JOUAN

PhD student

Liliia KHARCHEVSKA

Master Intern

Sara DENDENE

PhD student

Etienne JEANNE

PhD student

Abdillah MOHAMED

Engineer assistant

Gaëlle LEXTRAIT

PhD student

Romi MAKAYA

Master Intern

Latest publications

For all the publications of the Team click on the button below.

External funding

ANR 2017 project SymbiontCellCyc

SATT Paris-Saclay project SYMBOOST

ANR 2016 project SymEffectors 

ANR 2020 project Et-Nod.

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