Dynamic transcriptomics unveils parallel transcriptional regulation in artemisinin and phenylpropanoid biosynthesis pathways under cold stress in Artemisia annua.

ABSTRACT: Cold stress, a major abiotic factor, positively modulates the synthesis of artemisinin in Artemisia annua and influences the biosynthesis of other secondary metabolites. To elucidate the changes in the synthesis of secondary metabolites under low-temperature conditions, we conducted dynamic transcriptomic and metabolite quantification analyses of A. annua leaves. The accumulation of total organic carbon (TOC) in leaves under cold stress provided ample precursors for secondary metabolite synthesis. Short-term exposure to low temperature induced a transient increase in jasmonic acid synthesis, which positively regulates the artemisinin biosynthetic pathway, contributing to artemisinin accumulation. Additionally, transcripts of genes encoding key enzymes and transcription factors in both the

SUBMITTER: He Y 

PROVIDER: S-EPMC11682108 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature