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Deciphering heat-enhanced resistance of grapevine berries to Botrytis cinerea highlights differential cuticular and secondary metabolite accumulations between Merlot and Cabernet Sauvignon

hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
dc.contributor.authorCHAVONET, Erwan
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMIRANDE-NEY, Cathleen
hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
dc.contributor.authorBERNARDO, Sarah
hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
dc.contributor.authorGUINAND, Clément
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorDELESTRE, Ghislain
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorZHAN, Xi
hal.structure.identifierUnité de Recherche Œnologie [Villenave d'Ornon] [OENO]
hal.structure.identifierMetaboHUB-Bordeaux
dc.contributor.authorFONAYET, Josep
hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
hal.structure.identifierPlateforme Bordeaux Metabolome
dc.contributor.authorVAN DELFT, Pierre
hal.structure.identifierBiologie du fruit et pathologie [BFP]
hal.structure.identifierPlateforme Bordeaux Metabolome
dc.contributor.authorPRIGENT, Sylvain
hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
dc.contributor.authorPASCAL, Stéphanie
hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
dc.contributor.authorJOUBÈS, Jérôme
hal.structure.identifierInstitut des Sciences de la Vigne et du Vin [Villenave d'Ornon] [ISVV]
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorLECOURIEUX, David
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorFERMAUD, Marc
hal.structure.identifierLaboratoire de biogenèse membranaire [LBM]
dc.contributor.authorDOMERGUE, Frédéric
dc.date.accessioned2025-10-01T02:05:13Z
dc.date.available2025-10-01T02:05:13Z
dc.date.issued2025-09-24
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/207685
dc.description.abstractEnIn the context of climate change, temperature is a key abiotic driver of bunch microclimate, which, in order to reduce Botrytis cinerea development, is often managed in vineyards via practices such as leaf removal. The heatdependent mechanisms of pathogen resistance in grapevines nevertheless remain to be fully elucidated. In this study, the effect of heat stress (HS) applied specifically to green bunches on infections caused by B. cinerea on ripe berries inoculated 23 days later was assessed for two years in a greenhouse. Bunches of the Cabernet Sauvignon (CS) and Merlot (M) cultivars were heated 6 days 8 h daily with a 10 • C increased temperature. In vitro bio tests highlighted a significant heat-enhanced resistance only in CS berries, whereas a stable constitutive resistance characterized the M berries. Bunch veraison and total sugar content were not affected by HS, rejecting its effect on maturation dynamics. Therefore, berry preformed barriers at the time of inoculation, which can hinder fungal colonization, were investigated. While HS had nearly no effect on waxes, it significantly affected the cutin content in both varieties, and more significantly its composition in CS. Similarly, the antifungal skin condensed tannins overaccumulated following HS in both cultivars, and their basal level was greater in CS than in M. Otherwise, M accumulated more stilbene and flavonoid compounds, which may have contributed to the observed varietal resistance. Finally, untargeted metabolomic data revealed a range of compounds modulated by HS in CS as potential candidates involved in resistance.
dc.description.sponsorshipDéveloppement d'une infrastructure française distribuée pour la métabolomique dédiée à l'innovation
dc.description.sponsorshipNext generation metabolomics and fluxomics, from population to single cells
dc.description.sponsorshipMetaboHUB National Infrastructure of metabolomics and fluxomics
dc.language.isoen
dc.publisherElsevier
dc.subject.enGray mold Heat stress Ripening Cuticle Tannins Stilbenes Metabolomics
dc.title.enDeciphering heat-enhanced resistance of grapevine berries to Botrytis cinerea highlights differential cuticular and secondary metabolite accumulations between Merlot and Cabernet Sauvignon
dc.typeArticle de revue
dc.identifier.doi10.1016/j.stress.2025.101051
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Phytopathologie et phytopharmacie
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Bioclimatologie
dc.subject.halSciences du Vivant [q-bio]/Microbiologie et Parasitologie/Mycologie
bordeaux.journalPlant stress
bordeaux.hal.laboratoriesBiologie du Fruit & Pathologie (BFP) - UMR 1332*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-05290179
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-05290179v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plant%20stress&rft.date=2025-09-24&rft.au=CHAVONET,%20Erwan&MIRANDE-NEY,%20Cathleen&BERNARDO,%20Sarah&GUINAND,%20Cl%C3%A9ment&DELESTRE,%20Ghislain&rft.genre=article


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