Effects of White, Blue, and Red Light-Emitting Diodes on Carotenoid Biosynthetic Gene Expression Levels and Carotenoid Accumulation in Sprouts of Tartary Buckwheat (Fagopyrum tataricum Gaertn.)

In this study, the optimum wavelengths of light required for carotenoid biosynthesis were determined by investigating the expression levels of carotenoid biosynthetic genes and carotenoid accumulation in sprouts of tartary buckwheat (Fagopyrum tataricum Gaertn.) exposed to white, blue, and red light...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 2013-12, Vol.61 (50), p.12356-12361
Main Authors: Tuan, Pham Anh, Thwe, Aye Aye, Kim, Yeon Bok, Kim, Jae Kwang, Kim, Sun-Ju, Lee, Sanghyun, Chung, Sun-Ok, Park, Sang Un
Format: Article
Language:English
Subjects:
beta-carotene
Biological and medical sciences
biosynthesis
Biosynthetic Pathways - drug effects
buckwheat
Carotenoids - biosynthesis
Fagopyrum - genetics
Fagopyrum - growth & development
Fagopyrum - metabolism
Fagopyrum - radiation effects
Fagopyrum tataricum
Fundamental and applied biological sciences. Psychology
gene expression
Gene Expression Regulation, Plant - drug effects
genes
Light
lutein
Plant Proteins - genetics
Plant Proteins - metabolism
secondary metabolites
sowing
wavelengths
white light
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Summary:In this study, the optimum wavelengths of light required for carotenoid biosynthesis were determined by investigating the expression levels of carotenoid biosynthetic genes and carotenoid accumulation in sprouts of tartary buckwheat (Fagopyrum tataricum Gaertn.) exposed to white, blue, and red light-emitting diodes (LEDs). Most carotenoid biosynthetic genes showed higher expression in sprouts irradiated with white light at 8 days after sowing than in those irradiated with blue and red lights. The dominant carotenoids in tartary buckwheat sprouts were lutein and β-carotene. The richest accumulation of total carotenoids was observed in sprouts grown under white light (1282.63 μg g–1 dry weight), which was relatively higher than that in sprouts grown under blue and red lights (940.86 and 985.54 μg g–1, respectively). This study might establish an effective strategy for maximizing the production of carotenoids and other important secondary metabolites in tartary buckwheat sprouts by using LED technology.
ISSN:0021-8561
1520-5118
DOI:10.1021/jf4039937