title: 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.).
abstract: 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.
authors.affiliation: Department of Crop Science, Chungnam National University , 99 Daehak-ro, Yuseong-gu, Daejeon 305-754, Korea.
authors.forename: Pham Anh
authors.initials: PA
authors.lastname: Tuan
authors.forename: Aye Aye
authors.initials: AA
authors.lastname: Thwe
authors.forename: Yeon Bok
authors.initials: YB
authors.lastname: Kim
authors.forename: Jae Kwang
authors.initials: JK
authors.lastname: Kim
authors.forename: Sun-Ju
authors.initials: SJ
authors.lastname: Kim
authors.forename: Sanghyun
authors.initials: S
authors.lastname: Lee
authors.forename: Sun-Ok
authors.initials: SO
authors.lastname: Chung
authors.forename: Sang Un
authors.initials: SU
authors.lastname: Park
mesh_terms: D053898:Biosynthetic Pathways / Q000187:drug effects; D002338:Carotenoids / Q000096:biosynthesis*; D019612:Fagopyrum / Q000235:genetics / Q000254:growth & development / Q000378:metabolism / Q000528:radiation effects*; D018506:Gene Expression Regulation, Plant / Q000187:drug effects; D008027:Light; D010940:Plant Proteins / Q000235:genetics* / Q000378:metabolism
chemical_list: D010940:Plant Proteins; D002338:Carotenoids