| 环己六醇在茶树儿茶素生物合成中的作用(英文) |
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| 引用本文： | 王传友,黄雨初. 环己六醇在茶树儿茶素生物合成中的作用(英文)[J]. 中国科学技术大学学报, 1987, 0(4) |
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| 作者姓名： | 王传友 黄雨初 |
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| 作者单位： | 安徽农学院，中国科学技术大学 安徽省茶叶进出口公司 |
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| 摘 要： | 术文利用放射性同位素生物标记法,对环己六醇在茶树儿茶素生物合成中的作用作了研究.提出了环已六醇至少通过两条路线参与儿茶素的生物合成;1.经由戊糖到PPP 途径;2.经由己糖到EMP 途径.然后,环已六醇逐渐转变形成莽草酸途径的先质,最后,通过莽草酸途径参入到儿茶素中.m—环已六醇直接形成茶多酚的可能性不大.
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| 关 键 词： | m—环己六醇 儿茶素 ~(14)C—U-葡萄糖 茶树(Camellia sinensis L.) |
Action of Myo-inositol in the Biosynthesis of Catechins in the Tea Plant(Camellia sinensis,L.) |
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| Wang Chuanyou. Action of Myo-inositol in the Biosynthesis of Catechins in the Tea Plant(Camellia sinensis,L.)[J]. Journal of University of Science and Technology of China, 1987, 0(4) |
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| Authors: | Wang Chuanyou |
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| Affiliation: | Wang Chuanyou (Anhui Agricultural College) Huang Yuchu (China University of Science and Technology) |
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| Abstract: | When ~(14)C-U-Glucose and m-inositol were administrated into youngtea shoots simultaneously,the incorparation of ~(14)C-U-G into catechinswas deeply reduced by inositol.The biosynthesis of catechins from~(14)C-U-G and m-inositol was definitely inhibited by NaF(0.05M).Theresult suggested at least two pathways for inositol to take part inthe biosynthesis of catechins;a)a pathway through pentose to pentosephosphate pathway(PPP),b)a pathway through hexose to EMP.So,inositol could convert to the precursors of the shikimate pathwaygradually,and then formed catechins via the shikimate pathwayultimately.The result also demonstrated that it was not likely possi-ble for m-inositol to form polyphenols directly. |
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