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Non-structural carbohydrates and sugar export in grapevine leaves exposed to different light regimes

dc.rights.licenseopenen_US
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorDAYER, Silvina
dc.contributor.authorMURCIA, G.
dc.contributor.authorPRIETO, J. A
dc.contributor.authorDURAN, M.
dc.contributor.authorMARTINEZ, L.
dc.contributor.authorPICCOLI, P.
dc.contributor.authorPEREZ PENA, J.
dc.date.accessioned2021-11-17T14:42:01Z
dc.date.available2021-11-17T14:42:01Z
dc.date.issued2021
dc.identifier.issn0031-9317en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/123839
dc.description.abstractEnLight is a main environmental factor that determines leaf microclimate within the vine, as well as its photosynthesis and carbohydrate metabolism. This study aimed to examine the relationships between photosynthesis, carbohydrate metabolism, and the expression of related genes in leaves of grapevine grown under different radiation regimes. During the 2014/2015 growing season, an experiment was conducted on a Malbec vineyard (Vitis vinifera L.) in which four radiation exposure treatments were established on the leaves: (1) East, (2) West, (3) Sun, and (4) Shade (i.e., reduction in light intensity). Diurnal dynamics of photosynthesis and non-structural carbohydrates were measured and leaf export rates were calculated. Transcript profiles of leaf sugar transporters (VvHT1, VvHT3, VvSUC27), a sucrose phosphate synthase enzyme (VvSPS), and invertases (VvGIN1, VvCWI) were also examined. We showed that East and Sun leaves had higher daily photosynthetic and export rates than West leaves, which was mainly explained by the environmental conditions (air and leaf temperature, VPDleaf-air) and leaf water status. Shade leaves accumulated less starch and soluble sugars than exposed leaves, which correlated with a higher expression of hexose transporters and invertases. The hypotheses that these sugars in Shade leaves would play a role as signaling molecules and/or have increased sink strength and phloem unloading are discussed. These results allow us to understand the physiological and molecular behavior of leaves exposed to different radiation regimes, which can be used to design appropriate vineyard management practices.
dc.language.isoENen_US
dc.subject.enVitis
dc.subject.enCarbohydrate
dc.subject.enHexose
dc.subject.enPhotosynthesis
dc.subject.enPlant leaf
dc.subject.enPlant Leaves
dc.title.enNon-structural carbohydrates and sugar export in grapevine leaves exposed to different light regimes
dc.typeArticle de revueen_US
dc.identifier.doi10.1111/ppl.13258en_US
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
bordeaux.journalPhysiologia Plantarumen_US
bordeaux.page728-738en_US
bordeaux.volume171en_US
bordeaux.hal.laboratoriesEcophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) - UMR 1287en_US
bordeaux.issue4en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionBordeaux Sciences Agroen_US
bordeaux.institutionINRAEen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.identifier.funderIDAgencia Nacional de Promoción Científica y Tecnológicaen_US
bordeaux.identifier.funderIDInstituto Nacional de Tecnología Agropecuariaen_US
hal.exportfalse
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physiologia%20Plantarum&rft.date=2021&rft.volume=171&rft.issue=4&rft.spage=728-738&rft.epage=728-738&rft.eissn=0031-9317&rft.issn=0031-9317&rft.au=DAYER,%20Silvina&MURCIA,%20G.&PRIETO,%20J.%20A&DURAN,%20M.&MARTINEZ,%20L.&rft.genre=article


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