TrMYB4 transcription factor regulates the rutin biosynthesis in hairy roots of F. cymosum

文献类型： 外文期刊

第一作者： Luo, Qinglin

作者： Luo, Qinglin;Xu, Yi;Luo, Qinglin;Wang, Chenglong;Cheng, Cheng;Wang, Chenglong;Hui, Jianchun;Zhu, Xuemei;Shao, Jirong;Li, Jintong;Wang, Jiyong;Zeng, Yan;Wang, Jiyong

作者机构：

关键词： Fagopyrum cymosum; TrMYB4; Flavonoids; Rutin; Hairy roots

期刊名称：PLANT SCIENCE （ 影响因子：4.729； 五年影响因子：5.132 ）

ISSN： 0168-9452

年卷期： 2020 年 294 卷

页码：

收录情况： SCI

摘要： Fagopyrum cymosum has been considered as a traditional medicinal plant that belongs to Fagopyrum, which has exhibited great pharmaceutical potential due to its abundant flavonoid accumulation. The hairy roots induced by Agrobacterium rhizogenes has been utilized to produce valuable specialized metabolites or reveals plant metabolic processes, whereas the underlying regulatory networks of flavonoid biosynthesis in hairy roots of F. cymosum remained unexplored. Here, the regulatory transcription factor TrMYB4 cloned from Trifolium repens with purple striped leaves was considered to investigate the mechanism of flavonoids biosynthesis in hairy roots of F. cymosum. Results showed that the expression of key genes involved in rutin biosynthesis pathway from TrMYB4 hairy roots were significantly up-regulated compared with non-transgenic hairy roots, while the content of total flavonoids and rutin in TrMYB4 hairy roots also increased consistently. It revealed the TrMYB4 transcription factor could regulate the rutin biosynthesis in F. cymosum. Meanwhile, our research provided a theoretical reference for the industrial production of rutin using F. cymosum hairy roots.

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