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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Institutions

SPS - Saclay Plant Sciences

SymCRK and below (SYRKAB)

Coordinator: Benjamin Gourion

PhD project selected in 2013 – Person recruited: Fathi Berrabah

Leguminous plants are able to establish a symbiotic interaction with nitrogen fixing soil bacteria called rhizobia. During this interaction a new roots organ is formed that is called the nodule. Bacteria invade massively and chronically this organ where they differentiate in bacteroïds and fix nitrogen for the plant benefit. During this symbiosis defense reactions are normally not observed despite the massive tissues occupation.


Berrabah F., Bourcy M., Cayrel A., Eschstruth A., Mondy S., Ratet P., Gourion B. (2014). Growth conditions determine the DNF2 requirement for symbiosis. PLOS ONE 9(3): e91866.

Berrabah F., Bourcy M., Eschstruth A., Cayrel A., Guefrachi I., Mergaert P., Wen J., Jean V., Mysore K.S., Gourion B., Ratet P. (2014). A nonRD receptor-like kinase prevents nodule early senescence and defense-like reactions during symbiosis. New Phytologist 203(4): 1305-1314.

Berrabah F., Ratet P., Gourion B. (2015). Multiple steps control immunity during the intracellular accommodation of rhizobia. Journal of Experimental Botany 66(7): 1977-1985.

Bourcy M., Berrabah F., Ratet P., Gourion B. (2013). Failure of self-control: defense-like reactions during legume/rhizobia symbiosis. Plant Signaling & Behavior 8(4): e23915.

Gourion B., Berrabah F., Ratet P., Stacey G. (2014). Rhizobium-legume symbioses: the crucial role of plant immunity. Trends in Plant Science 20 (3)(1878-4372 (Electronic)): 186-194.

Communications in conferences:

10 talks