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hal.structure.identifierGénétique et Amélioration des Fruits et Légumes [GAFL]
dc.contributor.authorGARCHERY, Cécile
hal.structure.identifierGénétique et Amélioration des Fruits et Légumes [GAFL]
dc.contributor.authorGEST, Noé
hal.structure.identifierMax Planck Institute of Molecular Plant Physiology [MPI-MP]
dc.contributor.authorDO, Phuc
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorALHAGDOW, Moftah
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorBALDET, Pierre
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMENARD, Guillaume
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorROTHAN, Christophe
hal.structure.identifierUnité de recherche Plantes et Systèmes de Culture Horticoles [PSH]
dc.contributor.authorMASSOT, Capucine
hal.structure.identifierUnité de recherche Plantes et Systèmes de Culture Horticoles [PSH]
dc.contributor.authorGAUTIER, Hélène
hal.structure.identifierEA 4279 Laboratoire Physiologie des Fruits et Légumes
dc.contributor.authorAARROUF, Jawad
hal.structure.identifierMax Planck Institute of Molecular Plant Physiology [MPI-MP]
dc.contributor.authorFERNIE, Alisdair
hal.structure.identifierGénétique et Amélioration des Fruits et Légumes [GAFL]
dc.contributor.authorSTEVENS, Rebecca
dc.date.accessioned2022-10-14T11:33:55Z
dc.date.available2022-10-14T11:33:55Z
dc.date.issued2012-07-18
dc.identifier.issn0140-7791
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/168318
dc.description.abstractEnThe regulation of carbon allocation between photosynthetic source leaves and sink tissues in response to stress is an important factor controlling plant yield. Ascorbate oxidase is an apoplastic enzyme, which controls the redox state of the apoplastic ascorbate pool. RNA interference was used to decrease ascorbate oxidase activity in tomato (Solanum lycopersicum L.). Fruit yield was increased in these lines under three conditions where assimilate became limiting for wild-type plants: when fruit trusses were left unpruned, when leaves were removed or when water supply was limited. Several alterations in the transgenic lines could contribute to the improved yield and favour transport of assimilate from leaves to fruits in the ascorbate oxidase lines. Ascorbate oxidase plants showed increases in stomatal conductance and leaf and fruit sugar content, as well as an altered apoplastic hexose : sucrose ratio. Modifications in gene expression, enzyme activity and the fruit metabolome were coherent with the notion of the ascorbate oxidase RNAi lines showing altered sink strength. Ascorbate oxidase may therefore be a target for strategies aimed at improving water productivity in crop species.
dc.language.isoen
dc.publisherWiley
dc.subject.enSolanum lycopersicum
dc.subject.enapoplast
dc.subject.endrought
dc.subject.engrowth
dc.subject.enoxidative stress
dc.subject.enredox
dc.subject.enRNAi
dc.subject.ensource-sink
dc.subject.enwater
dc.subject.endiversity
dc.subject.enadaptation
dc.subject.envitamin C
dc.subject.enVTC: Vitamin C
dc.subject.enAsA: Ascorbic acid
dc.subject.enGME: GDP-d-mannose-3
dc.subject.en5 -epimerase
dc.subject.enGalLDH: L-Galactono-1
dc.subject.en4-Lactone Dehydrogenase
dc.subject.enAO: Ascorbate oxidase
dc.subject.enMDHAR
dc.subject.enMonodehydroascorbate reductase Ascorbic acid
dc.subject.enTomato
dc.subject.enCell wall
dc.subject.enComplex systems
dc.subject.enSystems biology Ascorbate
dc.subject.enTomate
dc.subject.enParoi
dc.subject.enSystèmes complexes
dc.subject.enBiologie intégrative
dc.subject.enAscorbate
dc.subject.encell wall
dc.subject.enGDP-D-mannose epimerase
dc.subject.enrhamnogalacturonan-II
dc.subject.enSolanum lycopersicum
dc.subject.entomato fruits AsA: ascorbic acid
dc.subject.enDPA: days post anthesis
dc.subject.enPMI: phosphomannose isomerase
dc.subject.enGMP: GDP-D-mannose pyrophosphorylase
dc.subject.enGME: GDP-D-mannose-3
dc.subject.en5-epimerase
dc.title.enA diminution in ascorbate oxidase activity affects carbon allocation and improves yield in tomato under water deficit
dc.typeArticle de revue
dc.identifier.doi10.1111/j.1365-3040.2012.02564.x
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalPlant, Cell and Environment
bordeaux.page159 - 175
bordeaux.volume36
bordeaux.hal.laboratoriesBiologie du Fruit & Pathologie (BFP) - UMR 1332*
bordeaux.issue1
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03371224
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03371224v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plant,%20Cell%20and%20Environment&rft.date=2012-07-18&rft.volume=36&rft.issue=1&rft.spage=159%20-%20175&rft.epage=159%20-%20175&rft.eissn=0140-7791&rft.issn=0140-7791&rft.au=GARCHERY,%20C%C3%A9cile&GEST,%20No%C3%A9&DO,%20Phuc&ALHAGDOW,%20Moftah&BALDET,%20Pierre&rft.genre=article


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