0000000000245526
AUTHOR
Olivier Fernandez
showing 8 related works from this author
Woody Plant Declines. What’s Wrong with the Microbiome?
2020
National audience; Woody plant (WP) declines have multifactorial determinants as well as a biological and economic reality. The vascular system of WPs involved in the transport of carbon, nitrogen, and water from sources to sinks has a seasonal activity, which places it at a central position for mediating plant–environment interactions from nutrient cycling to community assembly and for regulating a variety of processes. To limit effects and to fight against declines, we propose: (i) to consider the WP and its associated microbiota as an holobiont and as a set of functions; (ii) to consider simultaneously, without looking at what comes first, the physiological or pathogenic disorders; and (…
L’holobionte vigne, un levier biologique pour lutter contre les dépérissements ?
2019
National audience
L’holobionte « vigne » face au dépérissement ou quand le « vivre ensemble » n’est plus à l’équilibre
2019
Prod 2019-165 SPE EA IPM BIOmE GenoSol INRA UB; National audience
L’holobionte vigne, un levier biologique pour lutter contre les dépérissements ?
2021
National audience; Le concept d’organisme pluricellulaire isolé montre actuellement ses limites. En effet, unorganisme interagit avec différentes communautés microbiennes (constituant son microbiote)qui modulent ses propriétés, telles que sa physiologie (ex. réponse à une attaque pathogène).L’association hôte-microorganismes définit un holobionte, dont le fonctionnement est influencépar la dynamique spatio-temporelle de leurs interactions. Ainsi, un dysfonctionnement del’holobionte vigne (par exemple lié à des pratiques culturales inadaptées ou aux changementsclimatiques) pourrait entraîner le développement de maladies ou de désordres physiologiques,sources de dépérissements, de la même man…
The grapevine flagellin receptor VvFLS2 differentially recognizes flagellin-derived epitopes from the endophytic growth-promoting bacterium Burkholde…
2014
International audience; The role of flagellin perception in the context of plant beneficial bacteria still remains unclear. Here, we characterized the flagellin sensing system flg22-FLAGELLIN SENSING 2 (FLS2) in grapevine, and analyzed the flagellin perception in the interaction with the endophytic plant growth-promoting rhizobacterium (PGPR) Burkholderia phytofirmans. The functionality of the grapevine FLS2 receptor, VvFLS2, was demonstrated by complementation assays in the Arabidopsis thaliana fls2 mutant, which restored flg22-induced H2O2 production and growth inhibition. Using synthetic flg22 peptides from different bacterial origins, we compared recognition specificities between VvFLS2…
Identification and characterization of the grapevine flagellin receptor vvfls2
2014
International audience
Characterization of the role of flagellin in the innate immunity triggered by the endophytic pgpr burkholderia phytofirmans in arabidopsis and grapev…
2014
International audience
The holobiont, a biological lever to manage some declines of grapevine
2019
International audience; The concept of a multicellular organism to describe complex organisms composed of groups of analogous cells called tissues and organs with specific functions, shows currently some limitations. An organism such as a plant does not live alone, but closely associated with different microbial communities making up its microbiomes. The microbiomes, specific to a tissue, interact with the plant and modulate some of its functions, including physiology and immunity. The host and the associated microbiomes define a holobiont, whose function is influenced by the spatio-temporal dynamics of their interactions. Thus, a dysfunction of the grapevine holobiont (linked for example t…