文献类型: 外文期刊
第一作者: Ruan, Jianyun
作者: Ruan, Jianyun;Ma, Lifeng;Yang, Yajun
作者机构:
关键词: amino acids;carbohydrate;internal nitrogen cycling;magnesium nutrition;tea;theanine
期刊名称:JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE ( 影响因子:3.638; 五年影响因子:3.802 )
ISSN: 0022-5142
年卷期: 2012 年 92 卷 7 期
页码:
收录情况: SCI
摘要: BACKGROUND: Free amino acids in young tea shoots are important chemical constituents, remarkably influencing the quality of green teas. Nutrient solution, soil pot and field experiments were conducted to investigate the effect of magnesium nutritional status on accumulation and transport of free amino acids in tea plants (Camellia sinensis (L.) O. Kuntze). RESULTS: A sufficient supply of Mg in nutrient solution increased biomass production and concentrations of free amino acids, notably theanine in young shoots and roots, without affecting total N in the leaves, absorption rates of inorganic N and glutamine synthetase activity. Amino acids in xylem saps and phloem exudates or total sugars in phloem exudates of tea plants from pot and field experiments showed their highest levels in bud breaking and shoot extension in early spring (March and early April). Application ofMg increased the amounts of amino acids and total sugars in the xylem saps and phloem exudates. CONCLUSION: Adequate supply of Mg nutrient promoted the synthesis of theanine in roots and its accumulation in the young shoots of tea plants. Magnesium nutritional status was an important factor influencing the mobility of amino acids and sugars via xylem and phloem especially when N and C reserves remobilized to support spring growth of young shoots. (C) 2011 Society of Chemical Industry
分类号:
- 相关文献
作者其他论文 更多>>
-
Molecular Characterization of Plant Volatile Compound Interactions with Cnaphalocrocis medinalis Odorant-Binding Proteins
作者:Qian, Qi;Guo, Xin;Wu, Lingjie;Cui, Jiarong;Gao, Huiying;Lu, Zhongxian;Zhu, Pingyang;Qian, Qi;Yang, Yajun;Xu, Hongxing;Lu, Zhongxian
关键词:Cnaphalocrocis medinalis; odorant-binding proteins; plant volatiles; binding characteristics; olfactory behavior
-
Optimization of nutrient management improves productivity, quality and sustainability of albino tea cultivar Baiye-1
作者:Zhu, Yun;Ma, Lifeng;Geng, Saipan;Ruan, Jianyun;Zhu, Yun;Ma, Lifeng;Ruan, Jianyun;Ma, Lifeng;Ruan, Jianyun
关键词:free amino acid; catechin; organic substitution; nutrient use efficiency (NUE); greenhouse gas emissions; nitrogen nutrition; albino tea cultivar
-
Feeding live yeast (Saccharomyces cerevisiae) improved performance of mid-lactation dairy cows by altering ruminal bacterial communities and functions of serum antioxidation and immune responses
作者:Zhang, Qian;Zhang, Xiaoqing;Zhang, Jize;Ma, Lifeng;Jia, Hao;Tana;Guo, Yu;Wang, Jianlong;Ma, Lifeng
关键词:Saccharomyces cerevisiae; Lactation performance; Ruminal microbiota-host interaction; Animal health
-
CRY1 is involved in the take-off behaviour of migratory Cnaphalocrocis medinalis individuals
作者:Sun, Tianyi;Zhai, Baoping;Wang, Yumeng;Hu, Gao;Sun, Tianyi;Yang, Yajun;Lu, Zhongxian;Xu, Hongxing;Lu, Yanhui;Guo, Jiawen;Yang, Fan;Zhang, Haiyan;Lu, Jiahao;Hu, Gao
关键词:Cnaphalocrocis medinalis; Migratory insect; Light intensity; Take-off behaviour; Cryptochrome
-
Application of metabolic fingerprinting in tea quality evaluation
作者:He, Yun;Liu, Li;Li, Yan;Zhang, Qunfeng;Ruan, Jianyun;Inostroza, Alvaro Cuadros;Kierszniowska, Sylwia
关键词:Tea grade discrimination; Metabolomics; Organic acids; Lipids; Amino acids; Sensory
-
Differences in responses to a fluctuating temperature/humidity environment between two related species of rice leaffolders based on a comparison in a constant environment
作者:Yang, Yajun;Xu, Hongxing;Lu, Zhongxian;Liao, Qiuju;Liu, Yinghong;Mo, Xiaorong;Xie, Xin;Peng, Chenglin
关键词:Climate change; Cnaphalocrocis medinalis; Cnaphalocrocis exigua; Fluctuation; Temperature; Life-history traits
-
Transcriptomic analysis of hub genes regulating albinism in light- and temperature-sensitive albino tea cultivars 'Zhonghuang 1' and 'Zhonghuang 2'
作者:Wang, Lu;Di, Taimei;Li, Nana;Peng, Jing;Wu, Yedie;He, Mingming;Hao, Xinyuan;Huang, Jianyan;Ding, Changqing;Yang, Yajun;Wang, Xinchao
关键词:Albino; Chloroplast; Tea plant (Camellia sinensis); Transcriptomic analysis