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Increasing evidence suggests that heat acclimation and exogenous salicylic acid (SA) and abscisic acid (ABA) may lead to the enhancement of thermotolerance in plants. In this study, the roles that free SA, conjugated SA, ABA, and phosphatidylinositol-4,5-bisphosphate (PIP(2))-specific phospholipase C (PLC) play in thermotolerance development induced by heat(More)
Vitis vinifera L. cv. Cabernet Sauvignon cell suspension cultures were treated with ultraviolet C (UV-C), methyl jasmonate (MeJA) and salicylic acid (SA), alone or in combination, to investigate the effects on stilbene biosynthesis. The application of elicitors at the proper dosage or concentration did not exert a negative effect on cell growth. All(More)
Cell suspension cultures of Vitis vinifera were treated with chitosan and ultraviolet C (UV-C) irradiation, alone or in combination, to investigate the relationship between the production of stilbene and the transcript profiles of genes encoding the enzymes involved in stilbene synthesis. Treatment at the proper concentration or dosage enhanced both(More)
To explore the effects of harvest time on phenolic compounds during wine fermentation, grape berries (Vitis vinifera L. cv. Vidal) were harvested at 17.5, 22.8 and 37.2 masculine Brix and were used to make dry wine, semi-sweet wine and icewine with low alcohol levels, respectively. Phenolic acids and flavan-3-ols were assayed during the fermentation of(More)
At high levels, copper in grape mash can inhibit yeast activity and cause stuck fermentations. Wine yeast has limited tolerance of copper and can reduce copper levels in wine during fermentation. This study aimed to understand copper tolerance of wine yeast and establish the mechanism by which yeast decreases copper in the must during fermentation. Three(More)
Vitis vinifera L. cv. Cabernet Sauvignon cell suspension cultures were treated with oligochitosan (OCS) and sodium alginate (NaAlg) at various concentrations for different exposure times to investigate the effects on stilbene biosynthesis. In this study, adding optimal concentrations of OCS (100 mg l−1) and NaAlg (100 mg l−1) significantly enhanced both(More)
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