Deciphering effector function in the Magnaporthe oryzae rice interaction

Ribot Cécile, Cesari C., Hirsch Judith, Fournier Elisabeth, Tharreau Didier, Vallet J., Lebrun Marc-Henri. 2011. Deciphering effector function in the Magnaporthe oryzae rice interaction. In : 26th Fungal Genetics Conference, Asilomar, USA, March 15-20, 2011. s.l. : s.n., Résumé, p. 259. (Fungal Genetics Reports, 58, suppl.) Fungal Genetics Conference. 26, Asilomar, États-Unis, 15 March 2011/20 March 2011.

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Abstract : Effectors are central to virulence in all pathogenic organisms and to their adaptation to specific hosts. However, the role and molecular function of fungal effector proteins is largely unknown. A better understanding of fungal effectors is necessary for a deeper understanding of fungal pathogenicity and for new perspectives in the development of durably resistant crops. Therefore, we perform systematic and targeted analysis of effectors of the causal agent of blast disease, the ascomycete fungus Magnaporthe oryzae, which is the most important rice pathogen and a model for the investigation of the molecular basis of fungal pathogenicity. Genome wide expression analysis allowed us the identification of ~100 effector candidates, secreted specifically during infection. Results from the functional analysis of promising candidates will be presented. Investigation of their localization during infection by life cell imaging studies and in vitro translocation assays indicate their translocation into host cells by unknown mechanisms. In addition, two hybrid screens and over expression studies in rice are beginning to shed light on targeted host proteins and host processes. (Texte intégral)

Mots-clés Agrovoc : Magnaporthe, Oryza

Mots-clés complémentaires : Magnaporthe oryzae

Classification Agris : H20 - Plant diseases

Auteurs et affiliations

  • Ribot Cécile
  • Cesari C.
  • Hirsch Judith
  • Fournier Elisabeth
  • Tharreau Didier, CIRAD-BIOS-UMR BGPI (FRA) ORCID: 0000-0003-3961-6120
  • Vallet J.
  • Lebrun Marc-Henri

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