DOI: 10.1021/acs.jafc.9b08212
论文题名: Shading Effects on Leaf Color Conversion and Biosynthesis of the Major Secondary Metabolites in the Albino Tea Cultivar "yujinxiang"
作者: Xu P. ; Su H. ; Jin R. ; Mao Y. ; Xu A. ; Cheng H. ; Wang Y. ; Meng Q.
刊名: Journal of Agricultural and Food Chemistry
ISSN: 218561
出版年: 2020
卷: 68, 期: 8 语种: 英语
英文关键词: albino tea plant
; Camellia sinensis
; leaf color conversion
; major secondary metabolites
; shading
Scopus关键词: Alkylation
; Biochemistry
; Biomolecules
; Biosynthesis
; Color
; DNA
; Methylation
; Proteomics
; Tea
; Camellia sinensis
; Leaf color
; Secondary metabolites
; shading
; Tea plants
; Metabolites
英文摘要: Albino became a novel kind of tea cultivar in China recently. In this study, transcriptome and whole-genome bisulfite sequencing (WGBS) were employed to investigate the shading effects on leaf color conversion and biosynthesis of three major secondary metabolites in the albino tea cultivar "Yujinxiang". The increased leaf chlorophyll level was likely the major cause for shaded leaf greening from young pale or yellow leaf. In comparison with the control, the total catechin level of the shading group was significantly decreased and the abundance of caffeine was markedly increased, while the theanine level was nearly not influenced. Meanwhile, differentially expressed genes (DEGs) enriched in some biological processes and pathways were identified by transcriptome analysis. Furthermore, whole-genome DNA methylation analysis revealed that the global genomic DNA methylation patterns of the shading period were remarkably altered in comparison with the control. In addition, differentially methylated regions (DMRs) and the DMR-related DEG analysis indicated that the DMR-related DEGs were the critical participants in biosynthesis of the major secondary metabolites. These findings suggest that DNA methylation is probably responsible for changes in the contents of the major secondary metabolites in Yujinxiang. © 2020 American Chemical Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159197
Appears in Collections: 气候变化与战略
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作者单位: Department of Tea Science, Zhejiang University, Hangzhou, 310058, China; Agricultural Experiment Station, Zhejiang University, Zijingang Campus, Hangzhou, China; Hangzhou Academy of Agricultural Sciences, Hangzhou, 310000, China; College of Food Science, Southwest University, Chongqing, 400715, China
Recommended Citation:
Xu P.,Su H.,Jin R.,et al. Shading Effects on Leaf Color Conversion and Biosynthesis of the Major Secondary Metabolites in the Albino Tea Cultivar "yujinxiang"[J]. Journal of Agricultural and Food Chemistry,2020-01-01,68(8)