Mechanism Underlying the Shading-Induced Chlorophyll Accumulation in Tea Leaves.

ABSTRACT: Besides aroma and taste, the color of dry tea leaves, tea infusion, and infused tea leaves is also an important index for tea quality. Shading can significantly increase the chlorophyll content of tea leaves, leading to enhanced tea leaf coloration. However, the underlying regulatory mechanism remains unclear. In this study, we revealed that the expressions of chlorophyll synthesis genes were significantly induced by shading, specially, the gene encoding protochlorophyllide oxidoreductase (CsPOR). Indoor control experiment showed that decreased light intensity could significantly induce the expression of CsPOR, and thus cause the increase of chlorophyll content. Subsequently, we explored the light signaling pathway transcription factors regulating chlorophyll synthesis, inclu

SUBMITTER: Chen J 

PROVIDER: S-EPMC8675639 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature