CbCBF2 Integrates JA and BR Signaling to Enhance Oleanolic Acid Biosynthesis in Conyza blinii H. Lév Under Cold Stress
文献类型： 外文期刊
作者： Yang, Ming 1 ; Zhang, Guodong 1 ; Deng, Junjie 2 ; Zheng, Tianrun 5 ; Liu, Moyang 1 ;
作者机构： 1.Shanghai Jiao Tong Univ, Hainan Res Inst, Trop Hort Plant Res Ctr, Sanya, Peoples R China
2.Shanghai Jiao Tong Univ, Shanghai Collaborat Innovat Ctr Agriseeds, Sch Agr & Biol, Shanghai 200240, Peoples R China
3.Hainan Acad Agr Sci, Inst Trop Hort Res, Haikou 571100, Peoples R China
4.Shanghai Jiao Tong Univ, Joint Ctr Single Cell Biol, Sch Agr & Biol, Shanghai 200240, Peoples R China
5.Chongqing Coll Tradit Chinese Med, Sch Basic Med Sci, Chongqing 402760, Peoples R China
关键词：
期刊名称：AGRONOMY-BASEL （ 影响因子：3.4； 五年影响因子：3.8 ）
ISSN：
年卷期： 2025 年 15 卷 5 期
页码：
收录情况： SCI
摘要： Low temperature significantly contributes to the medicinal quality of Conyza blinii. The CBF/DREB1-dependent cold-responsive signaling pathway is a major contributor to plant cold stress resistance. However, whether the CBF/DREB1 signaling pathway affects the terpenoid metabolism of C. blinii under cold stress remains to be explored. Here, we systematically identified and analyzed the impact of CbCBFs on the terpenoid metabolism of C. blinii. The results showed that three CbCBFs and CbICE1 were identified based on the transcriptome. The functions significantly correlated with CbCBFs encompass plant hormones and stress responses. Co-expression analysis revealed that key genes in BR and JA signaling pathways were correlated with CbCBFs. Among them, CbCBF2 is the predominant factor under low-temperature conditions and is significantly positively correlated with oleanolic acid. Overexpression of CbCBF2 significantly upregulated the catalase gene Cb beta AS and increased oleanolic acid content in the leaves. These results indicate that CbCBF2 can act as a major regulatory factor to promote the synthesis of oleanolic acid by integrating JA and BR signaling under low temperature conditions.
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