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Microvine: A New Model to Study Grapevine Growth and Developmental Patterns and their Responses to Elevated Temperature

hal.structure.identifierÉcophysiologie des Plantes sous Stress environnementaux [LEPSE]
hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
dc.contributor.authorLUCHAIRE, Nathalie
hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
dc.contributor.authorRIENTH, Markus
hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
dc.contributor.authorROMIEU, Charles
hal.structure.identifierÉcophysiologie des Plantes sous Stress environnementaux [LEPSE]
dc.contributor.authorNEHE, Ajit
hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
dc.contributor.authorCHATBANYONG, Ratthaphon
hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
dc.contributor.authorHOUEL, Cléa
hal.structure.identifierSciences Pour l'Oenologie [SPO]
dc.contributor.authorAGEORGES, Agnes
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorGIBON, Yves
hal.structure.identifierÉcophysiologie des Plantes sous Stress environnementaux [LEPSE]
dc.contributor.authorTURC, Olivier
hal.structure.identifierÉcophysiologie des Plantes sous Stress environnementaux [LEPSE]
dc.contributor.authorMULLER, Bertrand
hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
dc.contributor.authorTORREGROSA, Laurent
hal.structure.identifierÉcophysiologie des Plantes sous Stress environnementaux [LEPSE]
dc.contributor.authorPELLEGRINO, Anne
dc.date.issued2017
dc.identifier.issn0002-9254
dc.description.abstractEnGrowing standardized plant material in controlled environment can facilitate the disentangling of the many impacts of climate change on grapevine production and quality. Microvine is a natural gibberellic acid insensitive mutant showing dwarfism, early and continuous flowering along the vegetative axes. It was initially proposed as a model for genetics. In this study, we questioned its suitability to facilitate and hasten the characterization of grapevine vegetative and reproductive growth and development patterns as wells as their responses to temperature elevation. A series of experiments were performed in the greenhouse and in growth chambers under either ‘standard’ (25/15°C days/night) or contrasted (from 22/12°C up to 30/25°C) thermal treatments for several weeks. Under ‘standard’ thermal condition, measured temporal patterns of leaf and berry growth were similar among several phytomers along the main axis allowing us to estimate temporal growth patterns from spatial distribution of organ size. These patterns were stable between independent experiments under similar thermal and irradiance conditions. When plants were exposed to contrasted thermal treatments, leaf emergence rate was found linearly related to average daily temperature allowing us to derive a thermal time based model of development. Under cool thermal conditions (22/12°C), the temporal evolution of biochemical parameters was similar to that classically found for grapevine. However, exposing plants to a + 8°C thermal treatment for 450 °Cd revealed strong alterations of the thermal time based developmental program with either acceleration (leaf and internode growth) or delay (flowering, sugar accumulation in berries), as well as major uncoupling between growth and storage in internodes. These results reveal the potential of Microvine to study grapevine responses to the many facets of climate change.
dc.description.sponsorshipBases développementales, moléculaires et génétiques de l'adaptation de la vigne à la contrainte thermique.
dc.language.isoen
dc.publisherAmerican Society for Enology and Viticulture
dc.subjectcroissance végétative
dc.subjectcroissance de la baie
dc.subjectcroissance foliaire
dc.subjectvigne
dc.subjectchangement climatique
dc.subjecttraitement thermique
dc.subject.enBerry development
dc.subject.enCarbohydrate reserves
dc.subject.enThermal treatment
dc.subject.enVegetative growth
dc.subject.enVitis vinifera
dc.subject.engrapevine
dc.subject.englobal change
dc.title.enMicrovine: A New Model to Study Grapevine Growth and Developmental Patterns and their Responses to Elevated Temperature
dc.typeArticle de revue
dc.identifier.doi10.5344/ajev.2017.16066
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
bordeaux.journalAmerican Journal of Enology and Viticulture
bordeaux.page283-292
bordeaux.volume68
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-01602636
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01602636v1
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