| 氟对茶叶品质成分代谢的的影响 |
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| 引用本文： | 李琼,阮建云. 氟对茶叶品质成分代谢的的影响[J]. 茶叶科学, 2009, 29(3) |
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| 作者姓名： | 李琼 阮建云 |
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| 作者单位： | 中国农业科学院茶叶研究所,浙江,杭州,310008;中国农业科学院研究生院,北京,100081;中国农业科学院茶叶研究所,浙江,杭州,310008 |
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| 基金项目： | 浙江省自然科学基金人才团队项目，现代农业(茶叶)产业技术体系资助项目 |
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| 摘 要： | 通过盆栽试验研究氟了对茶树新梢生长和品质成分含量的影响。适量增加土壤氟水平能提高新梢产量,但在高氟水平下新梢产量明显下降。茶多酚、咖啡碱及儿茶素(EGCG等)的含量随土壤氟水平的增加而逐渐降低,高氟水平下新梢的游离氨基酸含量也显著下降,苯丙氨酸解氨酶(PAL)、谷氨酸合成酶(GOGAT)的活性也随土壤和茶树氟浓度的增加而下降,说明氟可能抑制茶树儿茶素的合成代谢和氮素代谢。上述结果表明,氟对茶树生长和品质成分的影响与氟水平有关,虽然低浓度氟对茶树生长有一定的促进作用,但高浓度氟抑制茶树生长和茶多酚、氨基酸等品质成分的代谢。
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| 关 键 词： | 茶树 氟 氨基酸 茶多酚 苯丙氨酸解氨酶 谷氨酸合成酶 |
Effects of Fluoride on the Metabolism of Tea Quality Components |
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| LI Qiong,RUAN Jian-yun. Effects of Fluoride on the Metabolism of Tea Quality Components[J]. Journal of Tea Science, 2009, 29(3) |
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| Authors: | LI Qiong RUAN Jian-yun |
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| Affiliation: | 1.Tea Research Institute of Chinese Academy of Agricultural Sciences;Hangzhou 310008;China;2.Graduate School of Chinese Academy of Agricultural Sciences;Beijing 100081;China |
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| Abstract: | Soil experiment was conducted to investigate the impact of fluoride on yield of young shoots and chemical ingredients related with tea quality.Production of young shoots was improved by modest increase in the soil fluoride levels while significantly decreased by higher F levels.The concentrations of total polyphenols,caffeine and catechins(EGCG,etc) were reduced by fluoride application.The concentrations of total free amino acid and some major components(theanine,glutamate and glutamine) in the young shoots... |
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| Keywords: | tea plant fluoride amino acids polyphenols phenylalanine ammonia lyase glutamate synthase |
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