The transcription factor MYC2 positively regulates terpene trilactone biosynthesis through activating GbGGPPS expression in Ginkgo biloba.

ABSTRACT: Terpene trilactones (TTLs) have important medicinal value, but their low content in Ginkgo biloba leaves makes their exploitation extremely costly, thereby limiting the development of TTL-related industries. It was found that exogenous methyl jasmonate (MeJA) treatment increased the accumulation of TTLs, but the molecular mechanism is still unclear. Here, we identified two bHLH transcription factors in G. biloba, with the protein subcellular localizations in the nucleus. Expression of GbMYC2s was strongly induced by MeJA treatment, and the interactions between GbJAZs and GbMYC2s were demonstrated by yeast two-hybrid and bimolecular fluorescence complementation experiments. Overexpression of GbMYC2_4 and GbMYC2_5 enhanced Arabidopsis root sensitivity and s

SUBMITTER: Zheng J 

PROVIDER: S-EPMC11480656 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature