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ABA promotes starch synthesis and storage metabolism in dormant grapevine buds

Authordc.contributor.authorRubio, Sebastián 
Authordc.contributor.authorNoriega, Ximena 
Authordc.contributor.authorPérez, Francisco J. 
Cita de ítemdc.identifier.citationJournal of Plant Physiology, Volumen 234-235,
Abstractdc.description.abstract© 2019 Elsevier GmbH In grapevine (Vitis vinifera L.) buds, the short day (SD)-photoperiod induces endodormancy and increases the level of ABA and the expression of ABA key biosynthesis genes, which suggests that ABA could be the mediator of the photoperiodic induction of endodormancy. In the present study, it was established that during the development of the endodormancy, the content of ABA and the accumulation of starch increased in parallel in the buds; however, these increases occurred after the buds were already in the state of endodormancy. Despite this finding the exogenous applications of ABA to single-bud cuttings increased the starch content and up-regulated the expression of starch synthesis genes (VvSS1 and VvSS3) and down-regulated the expression of sucrose metabolism genes, invertase (VvINV) and sucrose phosphate synthase (VvSUPS). In addition, the manipulation of the endogenous content of ABA in the grapevine buds by applications of hydrogen cyanamide and uniconazole-P,
Publisherdc.publisherElsevier GmbH
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
Link to Licensedc.rights.uri
Sourcedc.sourceJournal of Plant Physiology
Keywordsdc.subjectAbscisic acid
Keywordsdc.subjectBud dormancy
Keywordsdc.subjectStarch synthesis
Títulodc.titleABA promotes starch synthesis and storage metabolism in dormant grapevine buds
Document typedc.typeArtículo de revista
Indexationuchile.indexArtículo de publicación SCOPUS

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Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile