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- Title
Response of wine yeast (Saccharomyces cerevisiae) aldehyde dehydrogenases to acetaldehyde stress during Icewine fermentation.
- Authors
Pigeau, G M; Inglis, D L
- Abstract
We previously reported that the aldehyde dehydrogenase encoded by ALD3 but not ALD6 was responsible, in part, for the increased acetic acid found in Icewines based on the expression profile of these genes during fermentation. We have now completed the expression profile of the remaining yeast aldehyde dehydrogenase genes ALD2, ALD4 and ALD5 during these fermentations to determine their contribution to acetic acid production. The contribution of acetaldehyde stress as a signal to stimulate ALD expression during these fermentations was investigated for all ALD genes. The expression of glycerol-3-phosphate encoded by GPD2 was also followed during these fermentations to determine its role in addition to the role we already identified for GPD1 in the elevated glycerol produced during Icewine fermentation.
- Publication
Journal of applied microbiology, 2007, Vol 103, Issue 5, p1576
- ISSN
1364-5072
- Publication type
Journal Article
- DOI
10.1111/j.1365-2672.2007.03381.x