| Title: | Differential Accumulation of Aroma Compounds in Normal Green and Albino-Induced Yellow Tea (Camellia sinensis) Leaves |
| Author(s): | Dong F; Zeng L; Yu Z; Li J; Tang J; Su X; Yang Z; |
| Address: | "Guangdong Food and Drug Vocational College, Longdongbei Road 321, Tianhe District, Guangzhou 510520, China. dongfangxyz@163.com. Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou 510650, China. zenglanting@scbg.ac.cn. College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China. zenglanting@scbg.ac.cn. Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou 510650, China. zhenming311@scbg.ac.cn. College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China. zhenming311@scbg.ac.cn. Tea Research Institute, Guangdong Academy of Agricultural Sciences & Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Dafeng Road 6, Tianhe District, Guangzhou 510640, China. skylong.41@163.com. Tea Research Institute, Guangdong Academy of Agricultural Sciences & Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Dafeng Road 6, Tianhe District, Guangzhou 510640, China. tangjinchi@126.com. Guangdong Food and Drug Vocational College, Longdongbei Road 321, Tianhe District, Guangzhou 510520, China. suxg@gdyzy.edu.cn. Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou 510650, China. zyyang@scbg.ac.cn. College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China. zyyang@scbg.ac.cn" |
| DOI: | 10.3390/molecules23102677 |
| ISSN/ISBN: | 1420-3049 (Electronic) 1420-3049 (Linking) |
| Abstract: | "Tea (Camellia sinensis) cultivars with green leaves are the most widely used for making tea. Recently, tea mutants with white or yellow young shoots have attracted increasing interest as raw materials for making 'high-quality' tea products. Albino teas are generallycharacterized as having metabolites of relatively high amino acid content and lower catechin content. However, little is known about aroma compounds in albino tea leaves. Herein, we compared original normal leaves (green) and light-sensitive albino leaves (yellow) of cv. Yinghong No. 9. GC-MS was employed to analyze endogenous tea aroma compounds and related precursors. Quantitative real time PCR was used to measure expression levels of genes involved in biosyntheses of tea aromas.The total contents of most endogenous free tea aromas, including aroma fatty acid derivatives, aroma terpenes, and aroma phenylpropanoids/benzenoids, and their glycosidically bound aroma compounds, were lower in yellow leaves than in green leaves. The content of the key precursor geranyl diphosphate (GDP) and expression levels of key synthetic genes involved in the formation of linalool, a major aroma compound in cv. Yinghong No. 9, were investigated. Linalool content was lower in albino-induced yellow leaves, which was due to the lower GDP content compared with normal green leaves" |
| Keywords: | Amino Acids/chemistry Camellia sinensis/*chemistry/genetics Catechin/chemistry Color Gas Chromatography-Mass Spectrometry Humans Mutation Plant Leaves/*chemistry/genetics Plant Shoots/*chemistry/genetics Tea/chemistry Volatile Organic Compounds/*chemistry; |
| Notes: | "MedlineDong, Fang Zeng, Lanting Yu, Zhenming Li, Jianlong Tang, Jinchi Su, Xinguo Yang, Ziyin eng 201804010097/Foundation of Science and Technology Program of Guangzhou/ 2017A020208015/Guangdong Science and Technology Program/ 2016A030313652, 2016A030306039, and 2018A030313457/Guangdong Natural Science Foundation/ 2018LM1143/Guangdong Innovation Team of Modern Agricultural Industry Technology System/ Switzerland 2018/10/21 Molecules. 2018 Oct 18; 23(10):2677. doi: 10.3390/molecules23102677" |
