L-Tryptophan synergistically increased carotenoid accumulation with blue light in maize (Zea mays L.) sprouts
文献类型： 外文期刊
作者： Xiang, Nan 1 ; Qi, Xitao 2 ; Hu, Jianguang 2 ; Wang, Siyun 3 ; Guo, Xinbo 1 ;
作者机构： 1.South China Univ Technol, Res Inst Food Nutr & Human Hlth, Engn Res Ctr Starch & Vegetable Prot Proc, Sch Food Sci & Engn,Minist Educ,Guangdong Prov Key, Guangzhou, Peoples R China
2.Guangdong Acad Agr Sci, Crop Res Inst, Key Lab Crops Genet Improvement Guangdong Prov, Guangzhou 510640, Peoples R China
3.Univ British Columbia, Dept Food Nutr & Hlth, Vancouver, BC, Canada
关键词： L -Tryptophan; Carotenoid; Maize sprouts; Light signal; Blue light
期刊名称：FOOD CHEMISTRY: MOLECULAR SCIENCES （ 影响因子：3.3； 五年影响因子：3.3 ）
ISSN： 2666-5662
年卷期： 2023 年 6 卷
页码：
收录情况： SCI
摘要： In the present study, L-tryptophan was applied in combination with blue light to modulate carotenoid biosynthesis in maize sprouts. The profiles of carotenoids, chlorophylls, and relative genes in carotenoid biosynthesis and light signaling pathways were studied. L-tryptophan and blue light both promoted the accumulation of carotenoids, and their combination further increased carotenoid content by 120%. L-tryptophan exerted auxinlike effects and stimulated PSY expression in blue light exposure maize sprouts, resulting in increased alpha- and beta- carotenes. L-tryptophan could also play a photoprotective role through the xanthophyll cycle under blue light. In addition, CRY in the light signaling pathway was critical for carotenoid biosynthesis. These findings provide new insights into the regulation of carotenoid biosynthesis and L-tryptophan could be used in conjunction with blue light to fortify carotenoids in maize sprouts.
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