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Muthusamy M, Kim JH, Kim SH, Kim JY, Heo JW, Lee H, Lee KS, Seo WD, Park S, Kim JA, Lee SI. Changes in Beneficial C-glycosylflavones and Policosanol Content in Wheat and Barley Sprouts Subjected to Differential LED Light Conditions. Plants (Basel) 2020; 9:E1502. [PMID: 33172036 PMCID: PMC7694615 DOI: 10.3390/plants9111502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/04/2020] [Accepted: 11/04/2020] [Indexed: 05/03/2023]
Abstract
The spectral quality and intensity of light, photoperiodism, and other environmental factors have profound impacts on the metabolic composition of light-dependent higher plants. Hence, we investigate the effects of fluorescent light (96 μmol m-2s-1) and white (100 μmol m-2s-1), blue (100 μmol m-2s-1), and red (93 μmol m-2s-1) light-emitting diode (LED) light irradiation on the C-glycosylflavone and policosanol contents in young seedlings of wheat and barley. Ultra-high-performance liquid chromatography (UHPLC) analyses of C-glycosylflavone contents in barley reveal that the saponarin content is significantly enhanced under blue LED light irradiation. Under similar conditions, isoorientin and isoschaftoside contents are improved in wheat seedlings. The contents of these C-glycosylflavones differed along with the light quality and growth period. The highest accumulation was observed in sprouts after three days under blue LED light irradiation. GC/MS analyses of policosanol contents showed that 1-hexacosanol (C26:o-OH) in barley and 1-octacosanol (C28:o-OH) in wheat seedlings were reduced under LED light irradiation, compared to seedlings under fluorescent light conditions. Nonetheless, the policosanol contents gradually improved with the extension of growth times and treatments, irrespective of the light quality. Additionally, a positive correlation was observed between the expression pattern of biosynthesis-related genes and the respective metabolite content in barley. This study demonstrates that blue LED light irradiation is useful in maximizing the C-glycosylflavone content in barley and wheat sprouts.
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Affiliation(s)
- Muthusamy Muthusamy
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences (NAS), RDA, Jeonju 54874, Korea; (M.M.); (J.H.K.); (S.H.K.); (J.Y.K.); (S.P.); (J.A.K.)
| | - Jong Hee Kim
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences (NAS), RDA, Jeonju 54874, Korea; (M.M.); (J.H.K.); (S.H.K.); (J.Y.K.); (S.P.); (J.A.K.)
- Division of Horticultural Biotechnology, Hankyung National University, Anseong 17579, Korea
| | - Suk Hee Kim
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences (NAS), RDA, Jeonju 54874, Korea; (M.M.); (J.H.K.); (S.H.K.); (J.Y.K.); (S.P.); (J.A.K.)
| | - Joo Yeol Kim
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences (NAS), RDA, Jeonju 54874, Korea; (M.M.); (J.H.K.); (S.H.K.); (J.Y.K.); (S.P.); (J.A.K.)
| | - Jeong Wook Heo
- Department of Agricultural Engineering, National Institute of Agricultural Sciences (NAS), RDA, Jeonju 54874, Korea;
| | - HanGyeol Lee
- Division of Crop Foundation, National Institute of Crop Science (NICS), RDA, Wanju 55365, Korea; (H.L.); (K.-S.L.); (W.D.S.)
| | - Kwang-Sik Lee
- Division of Crop Foundation, National Institute of Crop Science (NICS), RDA, Wanju 55365, Korea; (H.L.); (K.-S.L.); (W.D.S.)
| | - Woo Duck Seo
- Division of Crop Foundation, National Institute of Crop Science (NICS), RDA, Wanju 55365, Korea; (H.L.); (K.-S.L.); (W.D.S.)
| | - Soyoung Park
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences (NAS), RDA, Jeonju 54874, Korea; (M.M.); (J.H.K.); (S.H.K.); (J.Y.K.); (S.P.); (J.A.K.)
| | - Jin A Kim
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences (NAS), RDA, Jeonju 54874, Korea; (M.M.); (J.H.K.); (S.H.K.); (J.Y.K.); (S.P.); (J.A.K.)
| | - Soo In Lee
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences (NAS), RDA, Jeonju 54874, Korea; (M.M.); (J.H.K.); (S.H.K.); (J.Y.K.); (S.P.); (J.A.K.)
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Luo J, Liang S, Li J, Xu Z, Li L, Zhu B, Li Z, Lei C, Lindsey K, Chen L, Jin S, Zhang X. A transgenic strategy for controlling plant bugs (Adelphocoris suturalis) through expression of double-stranded RNA homologous to fatty acyl-coenzyme A reductase in cotton. New Phytol 2017; 215:1173-1185. [PMID: 28608990 DOI: 10.1111/nph.14636] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 05/02/2017] [Indexed: 06/07/2023]
Abstract
Plant bugs (Miridae species), which are sap-sucking insects, have emerged as major pests of cotton in China. Most Miridae species are not sensitive to commercial Bacillus thuringiensis (Bt) cotton, resulting in significant economic losses and an increased application of insecticide, which eventually may compromise the future of Bt cotton. We demonstrate that FATTY ACYL-COA REDUCTASE (AsFAR) plays an essential role in the reproduction of the bug Adelphocoris suturalis. Down-regulation of AsFAR expression by injection of double-stranded RNA suppresses ovarian development and female fertility, resulting in females producing few viable offspring. To determine the viability of an RNA interference approach to limit FAR expression and reproductive ability in A. suturalis, a dsRNA targeting the AsFAR gene (dsAsFAR) of A. suturalis was expressed in transgenic cotton plants. AsFAR transcription levels were significantly downregulated in A. suturalis feeding on the transgenic plants. In contained field trials, the transgenic cotton lines significantly suppressed the development of A. suturalis populations and were resistant to damage caused by plant bug infestation. These results suggest a new strategy for the management of plant bug pests of cotton.
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Affiliation(s)
- Jing Luo
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Sijia Liang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jianying Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhongping Xu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Lun Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Bangqin Zhu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhe Li
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chaoliang Lei
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Keith Lindsey
- Department of Biosciences, Durham University, Durham, DH1 3LE, UK
| | - Lizhen Chen
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shuangxia Jin
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xianlong Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
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