数字农科院2.0

The modulation of light quality on carotenoid and tocochromanol biosynthesis in mung bean (Vigna radiata) sprouts

文献类型： 外文期刊

作者： Yaoyao Cheng;Nan Xiang;Honglin Chen;Yihan Zhao;Lixia Wang;Xuzhen Cheng;Xinbo Guo

作者机构：

关键词： Biofortification;Biosynthesis;Carotenoids;Light quality;Mung bean;Tocopherols

期刊名称： Food Chemistry: Molecular Sciences

ISSN： 2666-5662

年卷期： 2023 年 6 卷

页码：

收录情况： 不在遴选数据库范围（2023版）

摘要： This study aimed to identify the regulatory mechanisms of white, blue, red lights on carotenoid and tocochromanol biosynthesis in mung bean sprouts. Results showed that three lights stimulated the increase of the predominated lutein (3.2–8.1 folds) and violaxanthin (2.1–6.1 folds) in sprouts as compared with dark control, as well as β-carotene (20–36 folds), with the best yield observed under white light. Light signals also promoted α- and γ-tocopherol accumulation (up to 1.8 folds) as compared with dark control. The CRTISO, LUT5 and DXS (1.24–6.34 folds) exhibited high expression levels under light quality conditions, resulting in an overaccumulation of carotenoids. The MPBQ-MT, TC and TMT were decisive genes in tocochromanol biosynthesis, and were expressed up to 4.19 folds as compared with control. Overall, the results could provide novel insights into light-mediated regulation and fortification of carotenoids and tocopherols, as well as guide future agricultural cultivation of mung bean sprouts.

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