期刊
JOURNAL OF EXPERIMENTAL BOTANY
卷 61, 期 9, 页码 2447-2458出版社
OXFORD UNIV PRESS
DOI: 10.1093/jxb/erq079
关键词
2D electrophoresis; abscisic acid; grape berry; proteomics; ripening; Vitis vinifera
资金
- Regione Piemonte
The control of ripening of the non-climacteric grapevine fruit is still a matter of debate, but several lines of evidence point to an important role for the hormone abscisic acid (ABA). The effects of ABA treatments on Cabernet Sauvignon berries before and at veraison were studied using a 2-DE proteomic approach. Proteins from whole deseeded berries (before veraison) and berry flesh and skin (at veraison) treated with 0.76 mM ABA and collected 24 h after treatment were separated and analysed. A total of 60 protein spots showed significant variations between treated and control berries, and 40 proteins, mainly related to general metabolism and cell defence, were identified by LC MS/MS. Our results show that ABA acts mainly through the regulation of mostly the same proteins which are involved in the ripening process, and that several of these changes share common elements with the ABA-induced responses in vegetative tissues.
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