Tissue-specific Accumulation of Flavonoids in Grape Berries is Related to Transcriptional Expression of VvF3′H and VvF3′5′H

Authors

  • L. Mu Centre for Viticulture and Oenology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  • J.-J. He Centre for Viticulture and Oenology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  • Q.-H. Pan Centre for Viticulture and Oenology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  • F. He Centre for Viticulture and Oenology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  • C.-Q. Duan Centre for Viticulture and Oenology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China

DOI:

https://doi.org/10.21548/35-1-986

Abstract

The products and the related gene expression of flavonoid metabolism were examined in the skin and pulp
of Yan73 (Vitis vinifera L. cv.) grapes, a teinturier variety cultivated in China, and the data were compared
with those in the skin and pulp of Cabernet Sauvignon (Vitis vinifera L. cv.) grapes, a well-known red
variety. The results showed that, in comparison with the skins of Cabernet Sauvignon, the skins of Yan73
berries were characterised by fewer types of flavonols and anthocyanins, a higher level of flavonoids,
and a much lower percentage of 3′-hydroxylated flavonols. Flavonoid metabolism was also present in the
pulp of Yan73, and the percentages of 3′-hydroxylated flavonols and 3′-hydroxylated flavan-3-ols were
significantly higher than the percentages of their corresponding 3′,5′-hydroxylated forms. Only flavan-3-
ols were found in the pulp of Cabernet Sauvignon. The expression of VvmybA1 exhibited a co-ordination
with the accumulation of anthocyanins in the pulp of the teinturier cultivar, which showed great similarity
to that in the skin. A good correlation was found between the expression of VvF3′H and 3′-hydroxylated
flavonoids, as well as between the expression of VvF3′5′H and 3′,5′-hydroxylated flavonoids in the skin and
pulp of the grape berries. It is suggested that tissue-specific accumulation of flavonoids in grape berries is
related to the transcriptional expression of VvF3′H and VvF3′5′H.

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Published

2016-09-21

Issue

Vol. 35 No. 1 (2014)

Section

Articles

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