山茶
机制(生物学)
变化(天文学)
山茶花
生物
植物
哲学
物理
认识论
天体物理学
作者
Yanting Fan,Tingting Zhao,Xiang Qin-zeng,Xiaoyang Han,Shuyan Yang,Lixia Zhang,Lijun Ren
出处
期刊:Plants
[MDPI AG]
日期:2024-01-31
卷期号:13 (3): 426-426
标识
DOI:10.3390/plants13030426
摘要
Tea is a popular beverage with characteristic functional and flavor qualities, known to be rich in bioactive metabolites such as tea polyphenols and theanine. Recently, tea varieties with variations in leaf color have been widely used in agriculture production due to their potential advantages in terms of tea quality. Numerous studies have used genome, transcriptome, metabolome, proteome, and lipidome methods to uncover the causes of leaf color variations and investigate their impacts on the accumulation of crucial bioactive metabolites in tea plants. Through a comprehensive review of various omics investigations, we note that decreased expression levels of critical genes in the biosynthesis of chlorophyll and carotenoids, activated chlorophyll degradation, and an impaired photosynthetic chain function are related to the chlorina phenotype in tea plants. For purple-leaf tea, increased expression levels of late biosynthetic genes in the flavonoid synthesis pathway and anthocyanin transport genes are the major and common causes of purple coloration. We have also summarized the influence of leaf color variation on amino acid, polyphenol, and lipid contents and put forward possible causes of these metabolic changes. Finally, this review further proposes the research demands in this field in the future.
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