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BcMYB111 Responds to BcCBF2 and Induces Flavonol Biosynthesis to Enhance Tolerance under Cold Stress in Non-Heading Chinese Cabbage

Int J Mol Sci .. 2023-05; 
Xiaoshan Chen , Ying Wu , Zhanghong Yu , Zhanyuan Gao , Qiang Ding , Sayyed Hamad Ahmad Shah , Wenyuan Lin , Ying Li , Xilin Hou
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Gene Synthesis According to the description [73], an 80-bp specific palindromic DNA sequence (50-ATGAGATCCTCACTAACTATATCCAAACCAATGGGGAAGGCCTTCCCCATTGGTTTGGATATAGTTAGTGAGGATCTCAT-30) was synthesized by the GeneScript company(Nanjing, China) and recombined into a pTY vector. Get A Quote

Abstract

Flavonols have been shown to respond to a variety of abiotic stresses in plants, including cold stress. Higher total flavonoid content was found in non-heading Chinese cabbage (NHCC, Brassica campestris (syn. Brassica rapa) ssp. chinensis) after cold stress. A non-targeted metabolome analysis showed a significant increase in flavonol content, including that of quercetin and kaempferol. Here, we found that an R2R3-MYB transcription factor, BcMYB111, may play a role in this process. BcMYB111 was up-regulated in response to cold treatment, with an accompanying accumulation of flavonols. Then, it was found that BcMYB111 could regulate the synthesis of flavonols by directly binding to the promoters of BcF3H and BcFL... More

Keywords

BcCBF2; BcMYB111; cold stress; flavonols; non-heading Chinese cabbage.