CsUGT78A15 catalyzes the anthocyanidin 3-O-galactoside biosynthesis in tea plants

Anthocyanins are a group of natural water-soluble pigments in plants that contribute to the pink-purple color of a range of tissues. Because anthocyanins have various biological activities in human health, there is great research interest in the development of anthocyanin-rich foods and beverages, i...

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Bibliographic Details
Published in:Plant physiology and biochemistry 2021-09, Vol.166, p.738-749
Main Authors: He, Xuqiu, Huang, Ronghao, Liu, Lipeng, Li, Yingying, Wang, Wenzhao, Xu, Qingshan, Yu, Youben, Zhou, Tianshan
Format: Article
Language:English
Subjects:
Anthocyanins
Heterologous expression
Purple-leaved tea plants
Transient overexpression
UA3GalT
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Summary:Anthocyanins are a group of natural water-soluble pigments in plants that contribute to the pink-purple color of a range of tissues. Because anthocyanins have various biological activities in human health, there is great research interest in the development of anthocyanin-rich foods and beverages, including purple shoot tea. Anthocyanidin 3-O-galactosides have been identified as one of the main anthocyanin components in purple shoot tea, but the enzyme responsible for their biosynthesis remains unclear. UDP-galactose anthocyanidin 3-O-galactosyltransferase (UA3GalT) is presumed to catalyze the galactosylation of anthocyanidin. Therefore, we assayed the UA3GalT activity in five tea samples with varying degrees of purple color and found that its activity was strongly positively correlated (r = 0.929, p 
ISSN:0981-9428
1873-2690
DOI:10.1016/j.plaphy.2021.06.029