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Nighttime transpiration represents a negligible part of water loss and does not increase the risk of water stress in grapevine

hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorDAYER, Silvina
hal.structure.identifierUniversität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
dc.contributor.authorHERRERA, José Carlos
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorDAI, Zhanwu
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBURLETT, Régis
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLAMARQUE, Laurent
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDELZON, Sylvain
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorBORTOLAMI, Giovanni
hal.structure.identifierLaboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant [PIAF]
dc.contributor.authorCOCHARD, Hervé
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorGAMBETTA, Gregory
dc.date.issued2020-11-05
dc.identifier.issn0140-7791
dc.description.abstractEnNighttime transpiration has been previously reported as a significant source of water loss in many species; however, there is a need to determine if this trait plays a key role in the response to drought. This study aimed to determine the magnitude, regulation and relative contribution to whole plant water‐use, of nighttime stomatal conductance ( g night ) and transpiration ( E night ) in grapevine ( Vitis vinifera L.). Our results showed that nighttime water loss was relatively low compared to daytime transpiration, and that decreases in soil and plant water potentials were mainly explained by daytime stomatal conductance ( g day ) and transpiration ( E day ). Contrary to E day , E night did not respond to VPD and possible effects of an innate circadian regulation were observed. Plants with higher g night also exhibited higher daytime transpiration and carbon assimilation at midday, and total leaf area, suggesting that increased g night may be linked with daytime behaviors that promote productivity. Modeling simulations indicated that g night was not a significant factor in reaching critical hydraulic thresholds under scenarios of either extreme drought, or time to 20% of soil relative water content. Overall, this study suggests that g night is not significant in exacerbating the risk of water stress and hydraulic failure in grapevine.
dc.description.sponsorshipPlateforme d'Innovation " Forêt-Bois-Fibre-Biomasse du Futur " - ANR-10-EQPX-0016
dc.description.sponsorshipCOntinental To coastal Ecosystems: evolution, adaptability and governance - ANR-10-LABX-0045
dc.language.isoen
dc.publisherWiley
dc.title.enNighttime transpiration represents a negligible part of water loss and does not increase the risk of water stress in grapevine
dc.typeArticle de revue
dc.identifier.doi10.1111/pce.13923
dc.subject.halSciences de l'environnement
bordeaux.journalPlant, Cell and Environment
bordeaux.page387-398
bordeaux.volume44
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-04873187
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04873187v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plant,%20Cell%20and%20Environment&rft.date=2020-11-05&rft.volume=44&rft.issue=2&rft.spage=387-398&rft.epage=387-398&rft.eissn=0140-7791&rft.issn=0140-7791&rft.au=DAYER,%20Silvina&HERRERA,%20Jos%C3%A9%20Carlos&DAI,%20Zhanwu&BURLETT,%20R%C3%A9gis&LAMARQUE,%20Laurent&rft.genre=article


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