Accumulation of theanine in tea plant (Camellia sinensis (L.) O. Kuntze): Biosynthesis, transportation and strategy for improvement

IF 4.2 2区生物学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY

Plant Science Pub Date : 2025-01-31 DOI:10.1016/j.plantsci.2025.112406

Qianting Luo , Hua-Feng He

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Abstract

Theanine, specifically biosynthesized and accumulated in Camellia sinensis (L.) O. Kuntze, is widely recognized as the most positive ingredient related to the quality of tea. Therefore, genetic factors related to the biosynthesis of theanine in tea plant, CsAlaDC, CsGGTs and CsMYBs, etc., were elaborated and proved to be influential. Oppositely, TFs acting on the growth and development of tea plants, CsPIF, CsHO as well as CsGDH were demonstrated to be negative for biosynthesis of theanine. Since root is the original assembly site, transportation is indispensable for the accumulation of theanine in leaf. CsAAP7.2 was elucidated to be involved in the transportation of theanine crossing the vascular system to vegetative tissues. In order to promote the accumulation of theanine, strategies were proposed in aspect of processing, cultivation, fertilizer as well as germplasm innovation. Appropriate processing technology, scientific planting manner and fertilizer application, coupling with domestication of excellent varieties portrayed out the future orientation of theanine. Purpose of the review was to summarize advantages achieved in related to metabolism of theanine, and to motivate more intensive and more effective means to promote the accumulation of theanine in tea plant.

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来源期刊

Plant Science 生物-生化与分子生物学

CiteScore

9.10

自引率

1.90%

发文量

322

审稿时长

33 days

期刊介绍： Plant Science will publish in the minimum of time, research manuscripts as well as commissioned reviews and commentaries recommended by its referees in all areas of experimental plant biology with emphasis in the broad areas of genomics, proteomics, biochemistry (including enzymology), physiology, cell biology, development, genetics, functional plant breeding, systems biology and the interaction of plants with the environment. Manuscripts for full consideration should be written concisely and essentially as a final report. The main criterion for publication is that the manuscript must contain original and significant insights that lead to a better understanding of fundamental plant biology. Papers centering on plant cell culture should be of interest to a wide audience and methods employed result in a substantial improvement over existing established techniques and approaches. Methods papers are welcome only when the technique(s) described is novel or provides a major advancement of established protocols.