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Effects of LED lights on Expression of Genes Involved in Phenylpropanoid Biosynthesis and Accumulation of Phenylpropanoids in Wheat Sprout

Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
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Those authors contributed equally to this work.
Agronomy 2019, 9(6), 307; https://doi.org/10.3390/agronomy9060307
Received: 6 May 2019 / Revised: 4 June 2019 / Accepted: 10 June 2019 / Published: 12 June 2019
Phenylpropanoids are naturally occurring compounds that exert beneficial pharmacological effects on human health. Phenylpropanoids can act as antioxidants and are involved in resistance to ultraviolet light and cancer; these compounds possess anti-inflammatory, antiviral, and antibacterial activity, and aid in wound healing. The expression of genes involved in phenylpropanoid biosynthesis, and consequent accumulation of phenylpropanoids in wheat sprout under conditions of stress, have not been extensively studied. This is the first study to examine the effects of light-emitting diodes (LED) on the expression of genes involved in phenylpropanoid biosynthesis and accumulation of phenylpropanoids in wheat sprouts. Our results, obtained using qRT-PCR and HPLC analyses, indicate that white light (380 nm) was the optimal wavelength for epicatechin biosynthesis in wheat sprouts. Compared with the effects of white light, blue light (470 nm) enhanced the accumulation of gallic acid and quercetin, but decreased the levels of p-coumaric acid and epicatechin; red light (660 nm) increased the accumulation of ferulic acid at 8 day and p-coumaric acid at 12 day. Compared gene expression with phenylpropanoid content showed that TaPAL3, TaPAL4, and TaDFR maybe important genes in phenylpropanoid biosynthesis in wheat sprout. This study provides insights into the effects of led lights on phenylpropanoid production in wheat sprouts. This knowledge will help improve secondary metabolite production in wheat sprouts. View Full-Text
Keywords: wheat sprouts; phenylpropanoid; LED irradiation; gene expression wheat sprouts; phenylpropanoid; LED irradiation; gene expression
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Cuong, D.M.; Ha, T.W.; Park, C.H.; Kim, N.S.; Yeo, H.J.; Chun, S.W.; Kim, C.; Park, S.U. Effects of LED lights on Expression of Genes Involved in Phenylpropanoid Biosynthesis and Accumulation of Phenylpropanoids in Wheat Sprout. Agronomy 2019, 9, 307.

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