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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 [Vienne, Autriche] [BOKU]
dc.contributor.authorHERRERA, Jose Carlos
hal.structure.identifierBeijing Key Laboratory of Grape Science and Enology/CAS Key Laboratory of Plant Resource
dc.contributor.authorDAI, Zhanwu
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBURLETT, Regis
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
hal.structure.identifierDepartement des sciences de l’environnement [Trois-Rivieres]
dc.contributor.authorLAMARQUE, Laurent
IDREF: 228231558
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, Herve
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorGAMBETTA, Gregory
ORCID: 0000-0002-8838-5050
IDREF: 225449641
dc.date.issued2021-02
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 "
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
dc.language.isoen
dc.publisherWiley
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enCircadian regulation
dc.subject.enGrapevine
dc.subject.enNighttime transpiration
dc.subject.enStomata
dc.subject.enStomatal conductance
dc.subject.enWater loss
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
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalPlant, Cell and Environment
bordeaux.page387-398
bordeaux.volume44
bordeaux.issue2
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03013821
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03013821v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plant,%20Cell%20and%20Environment&rft.date=2021-02&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,%20Jose%20Carlos&DAI,%20Zhanwu&BURLETT,%20Regis&LAMARQUE,%20Laurent&rft.genre=article


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