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Grapevines under drought do not express esca leaf symptoms

hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorBORTOLAMI, Giovanni
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorGAMBETTA, Gregory
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorCASSAN, Cédric
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorDAYER, Silvina
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorFAROLFI, Elena
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorFERRER, Nathalie
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorGIBON, Yves
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorJOLIVET, Jérôme
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorLECOMTE, Pascal
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorDELMAS, Chloe E. L.
dc.date.issued2021-10-21
dc.identifier.issn0027-8424
dc.description.abstractEnIn the context of climate change, plant mortality is increasing worldwide in both natural and agroecosystems. However, our understanding of the underlying causes is limited by the complex interactions between abiotic and biotic factors and the technical challenges that limit investigations of these interactions. Here, we studied the interaction between two main drivers of mortality, drought and vascular disease (esca), in one of the world’s most economically valuable fruit crops, grapevine. We found that drought totally inhibited esca leaf symptom expression. We disentangled the plant physiological response to the two stresses by quantifying whole-plant water relations (i.e., water potential and stomatal conductance) and carbon balance (i.e., CO 2 assimilation, chlorophyll, and nonstructural carbohydrates). Our results highlight the distinct physiology behind these two stress responses, indicating that esca (and subsequent stomatal conductance decline) does not result from decreases in water potential and generates different gas exchange and nonstructural carbohydrate seasonal dynamics compared to drought.
dc.language.isoen
dc.publisherNational Academy of Sciences
dc.subject.enabiotic–biotic interactions
dc.subject.encarbon balance
dc.subject.endrought
dc.subject.enplant dieback
dc.subject.envascular disease
dc.title.enGrapevines under drought do not express esca leaf symptoms
dc.typeArticle de revue
dc.identifier.doi10.1073/pnas.2112825118
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Amélioration des plantes
bordeaux.journalProceedings of the National Academy of Sciences of the United States of America
bordeaux.pagee2112825118
bordeaux.volume118
bordeaux.issue43
bordeaux.peerReviewedoui
hal.identifierhal-03474970
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03474970v1
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