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Seasonal and long-term consequences of esca grapevine disease on stem xylem integrity

hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorBORTOLAMI, Giovanni
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorFAROLFI, Elena
hal.structure.identifierLaboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant [PIAF]
dc.contributor.authorBADEL, Eric
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBURLETT, Regis
hal.structure.identifierLaboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant [PIAF]
dc.contributor.authorCOCHARD, Herve
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorFERRER, Nathalie
hal.structure.identifierSynchrotron SOLEIL [SSOLEIL]
dc.contributor.authorKING, Andrew
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
hal.structure.identifierUniversité du Québec à Trois-Rivières [UQTR]
dc.contributor.authorLAMARQUE, Laurent
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorLECOMTE, Pascal
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorMARCHESSEAU-MARCHAL, Marie
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorPOUZOULET, Jerome
hal.structure.identifierLaboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant [PIAF]
dc.contributor.authorTORRES RUIZ, Jose Manuel
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
hal.structure.identifierYale University [New Haven]
dc.contributor.authorTRUEBA, Santiago
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDELZON, Sylvain
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorGAMBETTA, Gregory
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorDELMAS, Chloe E. L.
dc.date.issued2021-05-04
dc.identifier.issn0022-0957
dc.description.abstractEnHydraulic failure has been extensively studied during drought-induced plant dieback, but its role in plant-pathogen interactions is under debate. During esca, a grapevine (Vitis vinifera) disease, symptomatic leaves are prone to irreversible hydraulic dysfunctions but little is known about the hydraulic integrity of perennial organs over the short- and long-term. We investigated the effects of esca on stem hydraulic integrity in naturally infected plants within a single season and across season(s). We coupled direct (ks) and indirect (kth) hydraulic conductivity measurements, and tylose and vascular pathogen detection with in vivo X-ray microtomography visualizations. Xylem occlusions (tyloses) and subsequent loss of stem hydraulic conductivity (ks) occurred in all shoots with severe symptoms (apoplexy) and in more than 60% of shoots with moderate symptoms (tiger-stripe), with no tyloses in asymptomatic shoots. In vivo stem observations demonstrated that tyloses occurred only when leaf symptoms appeared, and resulted in more than 50% loss of hydraulic conductance in 40% of symptomatic stems, unrelated to symptom age. The impact of esca on xylem integrity was only seasonal, with no long-term impact of disease history. Our study demonstrated how and to what extent a vascular disease such as esca, affecting xylem integrity, could amplify plant mortality through hydraulic failure.
dc.description.sponsorshipPlateforme d'Innovation " Forêt-Bois-Fibre-Biomasse du Futur "
dc.language.isoen
dc.publisherOxford University Press (OUP)
dc.subject.enEsca
dc.subject.enhydraulic failure
dc.subject.enplant dieback
dc.subject.entyloses
dc.subject.envascular pathogens
dc.subject.enVitis vinifera L
dc.subject.enX-ray microCT
dc.subject.enxylem anatomy
dc.title.enSeasonal and long-term consequences of esca grapevine disease on stem xylem integrity
dc.typeArticle de revue
dc.identifier.doi10.1093/jxb/erab117
dc.subject.halSciences de l'environnement
bordeaux.journalJournal of Experimental Botany
bordeaux.page3914-3928
bordeaux.volume72
bordeaux.issue10
bordeaux.peerReviewedoui
hal.identifierhal-03276371
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03276371v1
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