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Model-assisted comparison of sugar accumulation patterns in ten fleshy fruits highlights differences between herbaceous and woody species

hal.structure.identifierPlantes et systèmes de culture horticoles [PSH]
dc.contributor.authorCAKPO, Coffi Belmys
hal.structure.identifierPlantes et systèmes de culture horticoles [PSH]
dc.contributor.authorVERCAMBRE, Gilles
hal.structure.identifierPlantes et systèmes de culture horticoles [PSH]
hal.structure.identifierInstitut Sophia Agrobiotech [ISA]
hal.structure.identifierBiological control of artificial ecosystems [BIOCORE]
dc.contributor.authorBALDAZZI, Valentina
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorROCH, Léa
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
hal.structure.identifierChinese Academy of Sciences [Beijing] [CAS]
dc.contributor.authorDAI, Zhanwu
hal.structure.identifierPlantes et systèmes de culture horticoles [PSH]
dc.contributor.authorVALSESIA, Pierre
hal.structure.identifierPlantes et systèmes de culture horticoles [PSH]
dc.contributor.authorMEMAH, Mohamed-Mahmoud
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorCOLOMBIE, Sophie
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMOING, Annick
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorGIBON, Yves
hal.structure.identifierPlantes et systèmes de culture horticoles [PSH]
dc.contributor.authorGÉNARD, Michel
dc.date.issued2020
dc.identifier.issn0305-7364
dc.description.abstractEnBackground and AimsSugar concentration is a key determinant of fruit quality. Soluble sugars and starch concentrations in fruits vary greatly from one species to another. The aim of this study was to investigate similarities and differences in sugar accumulation strategies across ten contrasting fruit species using a modelling approach.MethodsWe developed a coarse-grained model of primary metabolism based on the description of the main metabolic and hydraulic processes (synthesis of compounds other than sugar and starch, synthesis and hydrolysis of starch, and water dilution) involved in the accumulation of soluble sugars during fruit development.Key ResultsStatistical analyses based on metabolic rates separated the species into six groups according to the rate of synthesis of compounds other than sugar and starch. Herbaceous species (cucumber, tomato, eggplant, pepper and strawberry) were characterized by a higher synthesis rate than woody species (apple, nectarine, clementine, grape and kiwifruit). Inspection of the dynamics of the processes involved in sugar accumulation revealed that net sugar importation, metabolism and dilution processes were remarkably synchronous in most herbaceous plants, whereas in kiwifruit, apple and nectarine, processes related to starch metabolism were temporally separated from other processes. Strawberry, clementine and grape showed a distinct dynamic compared with all other species.ConclusionsOverall, these results provide fresh insights into species-specific regulatory strategies and into the role of starch metabolism in the accumulation of soluble sugars in fleshy fruits. In particular, inter-specific differences in development period shape the co-ordination of metabolic processes and affect priorities for carbon allocation across species. The six metabolic groups identified by our analysis do not show a clear separation into climacteric and non-climacteric species, possibly suggesting that the metabolic processes related to sugar concentration are not greatly affected by ethylene-associated events.
dc.description.sponsorshipModélisation intégrative du fruit pour un système de sélection unifié
dc.language.isoen
dc.publisherOxford University Press (OUP)
dc.subjectplante fruitière
dc.subjectqualité du fruit
dc.subject.ensugar metabolism
dc.subject.enstarch metabolism
dc.subject.ensugar uptake
dc.subject.enwater dilution
dc.subject.enInter-species
dc.subject.enModel
dc.subject.enFleshy fruit
dc.subject.enCross-species
dc.title.enModel-assisted comparison of sugar accumulation patterns in ten fleshy fruits highlights differences between herbaceous and woody species
dc.typeArticle de revue
dc.identifier.doi10.1093/aob/mcaa082
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
bordeaux.journalAnnals of Botany
bordeaux.page455-470
bordeaux.volume126
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-02749663
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02749663v1
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