2016
DOI: 10.1186/s12870-016-0760-1
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Transcriptome and metabolite profiling reveals that prolonged drought modulates the phenylpropanoid and terpenoid pathway in white grapes (Vitis vinifera L.)

Abstract: BackgroundSecondary metabolism contributes to the adaptation of a plant to its environment. In wine grapes, fruit secondary metabolism largely determines wine quality. Climate change is predicted to exacerbate drought events in several viticultural areas, potentially affecting the wine quality. In red grapes, water deficit modulates flavonoid accumulation, leading to major quantitative and compositional changes in the profile of the anthocyanin pigments; in white grapes, the effect of water deficit on secondar… Show more

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Cited by 277 publications
(284 citation statements)
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References 67 publications
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“…Previous studies have already reported a modulation of these pathways in grape berries exposed to water deficit (Deluc et al, 2009; Savoi et al, 2016). Nonetheless, our gene-metabolite network analysis identified correlations between specific structural and regulatory flavonoid genes (e.g., CHSs , LDOX , UFGT , AOMT , F3′5′Hs , and MybAs ) and anthocyanin modulated by water deficit.…”
Section: Discussionmentioning
confidence: 92%
“…Previous studies have already reported a modulation of these pathways in grape berries exposed to water deficit (Deluc et al, 2009; Savoi et al, 2016). Nonetheless, our gene-metabolite network analysis identified correlations between specific structural and regulatory flavonoid genes (e.g., CHSs , LDOX , UFGT , AOMT , F3′5′Hs , and MybAs ) and anthocyanin modulated by water deficit.…”
Section: Discussionmentioning
confidence: 92%
“…Experiments included grapevine plants infected with Grapevine rupestris stem pitting-associated virus (GRSPaV)88, Botrytis cinerea 8990, Erysiphe necator 58, Neofusicoccum parvum 91, Plasmopara viticola 4192, Eutypa lata (Unpublished Microarray Nimblegen), or infested with the spider mite Tetranyhus urticae 60, and grapevine plants subjected to different abiotic stresses, namely drought stress in cv. Tocai berries during development and ripening93, berry cultures treated with exogenous glucose94, heat stress/acclimation in berries during berry development and ripening95, carbon starvation due to plant shading at bloom in flowers/inflorescences96 and UV-C treatment of berry skins97. Differential gene expression re-analysis based on the microarray and RNA-seq data was carried out using limma 98 and DESeq2 99, respectively, at FDR values < 0.05.…”
Section: Methodsmentioning
confidence: 99%
“…These two compounds were split into two different clusters by the PCA analysis. Probably this monoterpene production occurred due to the activation of a metabolic pathway that produces terpenoids and consequently monoterpenes, which have an important role in protecting plants against abiotic stresses (Loreto and Velikova, 2001;Loreto et al, 2004;Holopainen and Gershenzon, 2010;Savoi et al, 2016).…”
Section: Effects Of Salt Stress On Yield and Chemical Composition Ofmentioning
confidence: 99%