CsLAC4, regulated by CsmiR397a, confers drought tolerance to the tea plant by enhancing lignin biosynthesis.

ABSTRACT: Drought is a prevalent abiotic stress that commonly affects the quality and yield of tea. Although numerous studies have shown that lignin accumulation holds significant importance in conferring drought tolerance to tea plants, the underlying molecular regulatory mechanisms governing the tea plant's response to drought remain largely elusive. LACCASEs (LACs), which belong to the class of plant copper-containing polyphenol oxidases, have been widely reported to participate in lignin biosynthesis in plants and are implicated in numerous plant life processes, especially in the context of adverse conditions. In this study, we detected the upregulation of CsLAC4 in response to drought induction. Remarkably, the overexpression of CsLAC4 not only substantially increased the lignin content of tran

SUBMITTER: Yang H 

PROVIDER: S-EPMC11624182 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature