Claim · model-written summary
Resveratrol-O-glycosyltransferase expression did not account for increased trans-piceid concentrations.
- Taxon
- Vitis vinifera
Vitis viniferae1 - Gene
- resveratrol-O-glycosyltransferasee0
- Outcome
- trans-piceid concentrationse0
Not reportedMaterialCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased expression of stilbene synthase, but not that of resveratrol-O-glycosyltransferase, resulted in increased trans-piceid concentrations.”
e1“wine grape (Vitis vinifera) berries”
Title
Water Deficit Increases Stilbene Metabolism in Cabernet Sauvignon Berries
Laurent G. Deluc; Alain Decendit; Yorgos Papastamoulis; et al. Journal of Agricultural and Food Chemistry 2010. doi:10.1021/jf1024888
Other claims from this paper (8)
- Intervention effect Water deficit increased Cabernet Sauvignon berry trans-piceid accumulation fivefold.
- Intervention effect Water deficit did not increase trans-piceid accumulation in Chardonnay.
- Intervention effect Water deficit significantly increased transcripts for stilbene precursor biosynthesis genes in Cabernet Sauvignon.
- Mechanism Increased stilbene synthase expression resulted in greater trans-piceid concentrations.
- Intervention effect The same gene transcripts declined in Chardonnay under water deficit.
- Observation Twelve SNPs were identified in stilbene synthase gene promoters across three cultivars.
- Observation These polymorphisms changed eight predicted cis regulatory elements in Cabernet Sauvignon and Chardonnay.
- Mechanism The authors suggest cultivar-specific mechanisms control resveratrol biosynthesis.