The modulation of light quality on carotenoid and tocochromanol biosynthesis in mung bean (Vigna radiata) sprouts.
Food Chem (Oxf)
; 6: 100170, 2023 Jul 30.
Article
em En
| MEDLINE
| ID: mdl-36950347
ABSTRACT
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 ß-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.
BL, blue light; Biofortification; Biosynthesis; CK, dark control; Carotenoids; HPLC, high performance liquid chromatography; LEDs, light-emitting diodes; LHCII, light-harvesting complex of PSII; LQ, light quality; Light quality; MEP, methylerythritol phosphate; Mung bean; NASH, nonalcoholic steatohepatitis; PS, photosynthesis; PSII, photosystem II; PSs, photosystems; RL, red light; Tocopherols; VAD, vitamin A deficiency; WL, white light
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article