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Resveratrol Synthesis under Natural Conditions and after Ultraviolet-C Irradiation in Grape Leaves at Different Leaf Developmental Stages

文献类型： 外文期刊

作者： Wang, Junfang 1 ; Sun, Yuxia 1 ; Wang, Hengzhen 1 ; Guan, Xueqiang 1 ; Wang, Lijun 2 ;

作者机构： 1.Shandong Acad Agr Sci, Inst Agrofood Sci & Technol, Key Lab Agroprod Proc Technol Shandong, Jinan 250100, Peoples R China

2.Chinese Acad Sci, Beijing Key Lab Grape Sci & Enol, Inst Bot, Beijing 100093, Peoples R China

3.Chinese Acad Sci, Key Lab Plant Resources, Inst Bot, Beijing 100093, Peoples R China

关键词： UV-C irradiation; grape leaf; development; resveratrol

期刊名称：HORTSCIENCE （ 影响因子：1.455； 五年影响因子：1.617 ）

ISSN： 0018-5345

年卷期： 2016 年 51 卷 6 期

页码：

收录情况： SCI

摘要： The biosynthesis and accumulation of resveratrol in grape may be regulated by genetic and environmental factors [i.e., ultraviolet-C (UV-C) irradiation]. However, there is a lack of research on the biosynthesis and accumulation of resveratrol in grape leaves responding to UV-C irradiation at sequential developmental stages. In this study, leaf resveratrol concentration during different developmental stages of three grape cultivars, Jingxiu, Beifeng, and MRH3, under natural conditions, and of 'Beifeng' leaves exposed to UV-C irradiation was investigated. Results showed that resveratrol synthesis was related to the developmental stages under natural conditions. In young leaves, resveratrol concentration was low, but it increased continuously during leaf development, mainly as piceid forms. UV-C irradiation greatly stimulated resveratrol synthesis in 'Beifeng' leaves, and young leaves at 20 days were most sensitive to the irradiation. The total resveratrol in the skin of UV-C irradiated berries is about 19 times higher than that of the control, mainly in the forms of trans-resveratrol (trans-res)/cis-resveratrol (cis-res). These results provide a basis for increasing resveratrol concentration by artificial means.

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