Tea Research Institute, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
General Agrotechnical Extension Station of Ningbo City, Ningbo, Zhejiang, 315000, China.
Plant Physiol Biochem. 2023 Aug;201:107875. doi: 10.1016/j.plaphy.2023.107875. Epub 2023 Jul 9.
Tea plants (Camellia sinensis) typically contain high-flavonoid phytochemicals like catechins. Recently, new tea cultivars with unique purple-colored leaves have gained attention. These purple tea cultivars are enriched with anthocyanin, which provides an interesting perspective for studying the metabolic flux of the flavonoid pathway. An increasing number of studies are focusing on the leaf color formation of purple tea and this review aims to summarize the latest progress made on the composition and accumulation of anthocyanins in tea plants. In addition, the regulation mechanism in its synthesis will be discussed and a hypothetical regulation model for leaf color transformation during growth will be proposed. Some novel insights are presented to facilitate future in-depth studies of purple tea to provide a theoretical basis for targeted breeding programs in leaf color.
茶树（Camellia sinensis）通常含有高黄酮类植物化学物质，如儿茶素。最近，具有独特紫叶的新型茶树品种引起了人们的关注。这些紫茶品种富含花青素，为研究黄酮类途径的代谢通量提供了一个有趣的视角。越来越多的研究集中在紫茶的叶片颜色形成上，本综述旨在总结茶叶中花青素的组成和积累的最新进展。此外，还将讨论其合成的调控机制，并提出一个关于生长过程中叶色转化的假设调控模型。提出了一些新的见解，以促进未来对紫茶的深入研究，为有针对性的叶片颜色育种计划提供理论基础。
