title: Light-specific transcriptional regulation of the accumulation of carotenoids and phenolic compounds in rice leaves.
abstract: Carotenoids and phenolic compounds are important subgroups of secondary metabolites having an array of functional roles in the growth and development of plants. They are also major sources for health and pharmaceutical benefits, and industrially relevant biochemicals. The control of the biosynthesis of these compounds depends mainly on the quality and quantity of different light sources. Thus, to unravel their light-specific transcriptional regulation in rice leaves, we performed promoter analysis of genes upregulated in response to blue and red lights. The analysis results suggested a crosstalk between different phytohormones and the involvement of key transcription factors such as bHLH, bZIP, MYB, WRKY, ZnF and ERF [jasmonic acid inducible], in the regulation of higher accumulation of carotenoids and phenolic compounds upon blue light. Overall, the current analysis could improve our understanding of the light-specific regulatory mechanism involved in the biosynthesis of secondary metabolites via possible critical links between different TFs in rice leaves.
authors.affiliation: a Department of Chemical and Biomolecular Engineering , National University of Singapore , Singapore.
authors.forename: Bijayalaxmi
authors.initials: B
authors.lastname: Mohanty
authors.affiliation: b Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR) , Centros , Singapore.
authors.forename: Meiyappan
authors.initials: M
authors.lastname: Lakshmanan
authors.affiliation: c Metabolic Engineering Division, National Academy of Agricultural Science, Rural Development Administration, Nongsaengmyeong-ro , Wansan-gu, Jeonju-si, Jeollabuk-do , Republic of Korea.
authors.forename: Sun-Hyung
authors.initials: SH
authors.lastname: Lim
authors.affiliation: d Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University , Yeonsu-gu, Incheon , Republic of Korea.
authors.forename: Jae Kwang
authors.initials: JK
authors.lastname: Kim
authors.affiliation: e Department of Genetic Engineering, College of Life Sciences , Kyung Hee University , Giheung gu, Yongin-si, Gyeonggi-do , Republic of Korea.
authors.forename: Sun-Hwa
authors.initials: SH
authors.lastname: Ha
authors.affiliation: a Department of Chemical and Biomolecular Engineering , National University of Singapore , Singapore.|b Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR) , Centros , Singapore.
authors.forename: Dong-Yup
authors.initials: DY
authors.lastname: Lee
mesh_terms: D002338:Carotenoids / Q000378:metabolism*; D018506:Gene Expression Regulation, Plant / Q000528:radiation effects*; D008027:Light; D008954:Models, Biological; D012275:Oryza / Q000235:genetics* / Q000528:radiation effects*; D010636:Phenols / Q000378:metabolism*; D018515:Plant Leaves / Q000235:genetics* / Q000528:radiation effects; D014158:Transcription, Genetic / Q000528:radiation effects*
chemical_list: D010636:Phenols; D002338:Carotenoids
keywords: Carotenoids; light; phenolic compounds; rice; transcription factor