Effect of pre- and post-veraison water deficit on proanthocyanidin and anthocyanin accumulation during Shiraz berry development - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Australian Journal of Grape and Wine Research Année : 2011

Effect of pre- and post-veraison water deficit on proanthocyanidin and anthocyanin accumulation during Shiraz berry development

Nancy Terrier
Agnes Ageorges
Veronique Cheynier

Résumé

Background and Aims: Water deficit is known to influence berry development as well as flavonoid metabolism. The aim of this study was to investigate the influence of pre- and post-veraison water stress on the proanthocyanidin and anthocyanin accumulation on berry samples selected at comparable physiological maturity, especially after veraison while avoiding sugar influence. Methods and Results: Three irrigation treatments were applied by a drip irrigation system on three rows of 30 vines from an experimental Shiraz vineyard. Pre-veraison water stress had no effect on total proanthocyanidin accumulation but increased accumulation of all anthocyanins except malvidin and p-coumaroylated derivatives, whereas post-veraison water stress enhanced the overall anthocyanin biosynthesis, particularly malvidin and p-coumaroylated derivatives. Conclusions: Pre- and post-veraison water stress affected the anthocyanin composition differently, suggesting a differential regulation of the genes involved in the last steps of anthocyanin biosynthesis pathway. Significance of the Study: The study identifies the effect of pre- and post-veraison water stress while avoiding sugar influence on anthocyanin accumulation which could be maximised since both stresses differently impacted hydroxylation and methylation of anthocyanins.

Dates et versions

hal-01506234 , version 1 (12-04-2017)

Identifiants

Citer

D. Olle, Jean-Luc Guiraud, Jean Marc Souquet, Nancy Terrier, Agnes Ageorges, et al.. Effect of pre- and post-veraison water deficit on proanthocyanidin and anthocyanin accumulation during Shiraz berry development. Australian Journal of Grape and Wine Research, 2011, 17 (1), pp.90 - 100. ⟨10.1111/j.1755-0238.2010.00121.x⟩. ⟨hal-01506234⟩
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