Molecular mechanisms of flavonoid accumulation in germinating common bean (Phaseolus vulgaris) under salt stress
文献类型： 外文期刊
作者： Zhang, Qi 1 ; Zheng, Guangyue 1 ; Wang, Qi 1 ; Zhu, Jixing 1 ; Zhou, Zhiheng 1 ; Zhou, Wenshuo 1 ; Xu, Junjie 1 ; Sun, Haoyue 2 ; Zhong, Jingwen 1 ; Gu, Yanhua 1 ; Yin, Zhengong 3 ; Du, Yan-li 1 ; Du, Ji-dao 1 ;
作者机构： 1.Heilongjiang Bayi Agr Univ, Agr Coll, Legume Crop Lab, Daqing, Peoples R China
2.Heilongjiang Acad Agr Sci, Qiqihar Branch, Qiqihar, Peoples R China
3.Heilongjiang Acad Agr Sci, Crop Resources Inst, Harbin, Peoples R China
4.Natl Cereals Technol Engn Res Ctr, Daqing, Peoples R China
关键词： flavonoids (rutin) content; common bean; germinating; salt stress; mechanism; phenylpropanoid biosynthesis; flavonoid biosynthesis
期刊名称：FRONTIERS IN NUTRITION （ 影响因子：6.59； 五年影响因子：6.873 ）
ISSN： 2296-861X
年卷期： 2022 年 9 卷
页码：
收录情况： SCI
摘要： Flavonoids are important secondary metabolites, active biomolecules in germinating beans, and have prominent applications in food and medicine due to their antioxidant effects. Rutin is a plant flavonoid with a wide biological activity range. In this study, flavonoid (rutin) accumulation and its related molecular mechanisms in germinating common bean (Phaseolus vulgaris) were observed at different time points (0-120 h) under salt stress (NaCl). The rutin content increased from germination onset until 96 h, after which a reducing trend was observed. Metabolome analysis showed that salt stress alters flavonoid content by regulating phenylpropanoid (ko00940) and flavonoid (ko00941) biosynthesis pathways, as well as their enzyme activities, including cinnamyl-alcohol dehydrogenase (CAD), peroxidase (POD), chalcone isomerase (CHI), and flavonol synthase (FLS). The RNA-seq and quantitative real-time PCR (qRT-PCR) analyses also showed that these two pathways were linked to changes in flavonoid content following salt treatment. These results reveal that salt stress effectively enhanced rutin content accumulation in germinating beans, hence it could be employed to enhance the functional quality of germinating common beans.
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