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A plant extract acts both as a resistance inducer and an oomycide against grapevine downy mildew

dc.rights.licenseopenen_US
dc.contributor.authorKRZYZANIAK, Yuko
dc.contributor.authorTROUVELOT, Sophie
dc.contributor.authorNEGREL, Jonathan
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorCLUZET, Stephanie
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorVALLS FONAYET, Josep
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorRICHARD, Tristan
dc.contributor.authorBOUGAUD, Ambrine
dc.contributor.authorJACQUENS, Lucile
dc.contributor.authorKLINGUER, Agnes
dc.contributor.authorCHILTZ, Annick
dc.contributor.authorADRIAN, Marielle
dc.contributor.authorHELOIR, Marie-Claire
dc.date.accessioned2020-08-31T12:15:36Z
dc.date.available2020-08-31T12:15:36Z
dc.date.issued2018
dc.identifier.issn1664-462Xen_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/10719
dc.description.abstractEnProtecting vineyards from cryptogamic diseases such as downy mildew, caused by Plasmopara viticola, generally requires a massive use of phytochemicals. However, the issues on unintentional secondary effects on environment and human health, and the occurrence of P. viticola resistant strains, are leading to the development of alternative strategies, such as the use of biocontrol products. In this paper, we evidenced the ability of a plant extract to protect grapevine from P. viticola. Further experiments carried out both on cell suspensions and on plants revealed that plant extract activates typical defense-related responses such as the production of H2O2, the up-regulation of genes encoding pathogenesis-related proteins and stilbene synthase, as well as the accumulation of resveratrol or its derivative piceid. We also brought to light a strong direct effect of PE on the release and motility of P. viticola zoospores. Furthermore, we found out that PE application left dried residues on leaf surface, impairing zoospores to reach stomata. Altogether, our results highlight the different modes of action of a new biocontrol product able to protect grapevine against downy mildew.
dc.language.isoENen_US
dc.title.enA plant extract acts both as a resistance inducer and an oomycide against grapevine downy mildew
dc.title.alternativeFront. plant sci.en_US
dc.typeArticle de revueen_US
dc.identifier.doi10.3389/fpls.2018.01085en_US
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
bordeaux.journalFrontiers in Plant Scienceen_US
bordeaux.page1-14en_US
bordeaux.volume9en_US
bordeaux.hal.laboratoriesOenologie - EA 4577en_US
bordeaux.institutionBordeaux INPen_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.exportfalse
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Frontiers%20in%20Plant%20Science&rft.date=2018&rft.volume=9&rft.spage=1-14&rft.epage=1-14&rft.eissn=1664-462X&rft.issn=1664-462X&rft.au=KRZYZANIAK,%20Yuko&TROUVELOT,%20Sophie&NEGREL,%20Jonathan&CLUZET,%20Stephanie&VALLS%20FONAYET,%20Josep&rft.genre=article


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