JXB Advance Access published online on August 30, 2005
Journal of Experimental Botany, doi:10.1093/jxb/eri265
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1 UMR IR2B, ENSAM-INRA-Université Montpellier II, F-34060 Montpellier cedex 1, France
* To whom correspondence should be addressed. A potential Carotenoid Cleavage Dioxygenase (CCD) gene was identified among a Vitis vinifera L. EST collection and a full-length cDNA (VvCCD1) was isolated. Recombinant expression of VvCCD1 confirmed that the gene encoded a functional CCD. Experimental evidence was obtained that VvCCD1 cleaves zeaxanthin symmetrically yielding 3-hydroxy-
Received March 25, 2005
Accepted July 14, 2005
RESEARCH PAPER
A Carotenoid Cleavage Dioxygenase from Vitis vinifera L.: functional characterization and expression during grape berry development in relation to C13-norisoprenoid accumulation
2 UMR SPO, équipe Biologie Intégrative de la Vigne et du Raisin, ENSAM-INRA, F-34060 Montpellier cedex 1, France
Nancy Terrier, E-mail: terrier{at}ensam.inra.fr
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Abstract
-ionone, a C13-norisoprenoidic compound, and a C14-dialdehyde. Expression of the gene was studied by real-time PCR at different developmental stages of grape berries from Muscat of Alexandria and Shiraz cultivars. A significant induction of the gene expression approaching véraison was observed in both cultivars. In parallel, the C13-norisoprenoid level increased from véraison to maturity in both cultivars.![]()
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