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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2019.01.004
|2 doi
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|a pubmed24n0975.xml
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|a (DE-627)NLM292681348
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|a (NLM)30639992
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|a (PII)S0176-1617(18)30544-3
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Rubio, Sebastián
|e verfasserin
|4 aut
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|a ABA promotes starch synthesis and storage metabolism in dormant grapevine buds
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 28.03.2019
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2019 Elsevier GmbH. All rights reserved.
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|a 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, revealed that the depth of the endodormancy depends on the ABA levels. Taken together, the results indicate that the development of the endodormancy in grapevine buds is associated with the accumulation of starch and a shift in metabolism towards a storage metabolism; as ABA stimulates both processes, it must play an important role in the maintenance and release but not the induction of endodormancy in grapevine buds
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|a Journal Article
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|a Abscisic acid
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|a Bud dormancy
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|a Grapevines
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|a Starch synthesis
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|a Triazoles
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|a uniconazole-P
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|a Sucrose
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|2 NLM
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|a Abscisic Acid
|2 NLM
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| 650 |
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|a 72S9A8J5GW
|2 NLM
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|a Starch
|2 NLM
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|a 9005-25-8
|2 NLM
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|a Noriega, Ximena
|e verfasserin
|4 aut
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|a Pérez, Francisco J
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 234-235(2019) vom: 15. März, Seite 1-8
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|x 1618-1328
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|g volume:234-235
|g year:2019
|g day:15
|g month:03
|g pages:1-8
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|u http://dx.doi.org/10.1016/j.jplph.2019.01.004
|3 Volltext
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