干旱胁迫对‘赤霞珠’葡萄果实花色苷代谢的影响

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中图分类号S663.1 文献标识码A 文章编号 1007-7731（2025）21-0040-05

DOI号 10.16377/j.cnki.issn1007-7731.2025.21.009

AbstractTo explore the effect of drought stress on anthocyanin metabolism in grape fruits，this study used ‘Cabernet Sauvignon’grapes as the experimental subjects and setup a drought stress group （DR）and a normal growth control group without drought stress （CK）.Fruit samples atthe mature stage were collcted for non-targeted metabolomics sequencing.Metabolic substances related to anthocyanins were analyzed through methods such as partial least squares discriminant analysis （PLS-DA），cluster analysisand metabolic analysis.PLS-DA indicated that the contribution rates of principal component1（PC1）and principal component 2（PC2） to the total variation were 59.31% and 21.05% respectively，and the cumulative contribution rate of the two reached 80.36% ，with significant classification efectsamong samples.Clusteranalysis indicated thata totalof17differential metabolites ofanthocyanidins suchas Peonidin-3-O-alpha-arabinopyranoside and7 diffrential metabolites of proanthocyaninssuch as Procyanidin B1 were detected in DR and CK.The content of anthocyanidin substances in grapes after drought stress was significantly lower thanthatof CK，whilethecontentof proanthocyanidins was higher thanthatofCK.This study provides areference for the stress-resistant cultivation of ‘Cabernet Sauvignon’grapes and the improvement of their quality.

Keywords‘Cabernet Sauvignon'grapes;anthocyanin metabolism; drought stress; anthocyanidin

葡萄是重要的经济类果树之一，市场对鲜食葡萄和酿酒葡萄的需求量较大，其果实品质受到行业与市场的广泛关注。（剩余6869字）