数字农科院2.0

Effects of methyl jasmonate and salicylhydroxamic acid on the biosynthesis of flavonoids in Glycyrrhiza glabra L. hairy roots

文献类型： 外文期刊

作者： Huan huan Zhao;Ran Du;Ya lei Han;Zhao hui Yang;Xiang Qiu;Yu qi Li;Jian guo Zhang;Zhi wei Cheng

作者机构：

关键词： （2-0-2）bHLH transcription factors;Flavonoid biosynthesis;Glycyrrhiza glabra L.;Metabolomics;Methyl jasmonate;MYB transcription factors;Salicylhydroxamic acid;Secondary metabolites;Transcriptomics

期刊名称： Plant Stress

ISSN： 2667-064X

年卷期： 2025 年 15 卷

页码：

收录情况： ESCI（2025版）

摘要： Glycyrrhiza glabra L., a commercially important licorices species, is rich in flavonoids with significant medicinal properties. Phytohormone jasmonates play a pivotal role in modulating flavonoid biosynthesis, though their specific impact on distinct flavonoid subclasses in G. glabra remains unclear. This study investigates the effects of methyl jasmonate (MeJA) and salicylhydroxamic acid (SHAM) on flavonoid biosynthesis in G.glabra hairy roots using transcriptomic and metabolomic analyses. MeJA treatment significantly upregulated key enzymes and transcription factors involved in flavonoid biosynthesis, leading to increased levels of specific flavonoids such as 8-prenylnaringenin. Conversely, SHAM treatment downregulated these genes and reduced flavonoid content. Notably, GurMYB04 emerged as a key regulator of flavonoid biosynthesis, showing contrasting expression patterns under MeJA and SHAM treatments. These findings highlight the divergent role of jasmonate signaling in flavonoid biosynthesis and provide insights for targeted metabolic engineering in G. glabra.

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