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茶园中以挥发物糖苷为载体的化感作用
引用本文:张正竹,宛晓春. 茶园中以挥发物糖苷为载体的化感作用[J]. 中国农学通报, 2005, 21(10): 47-47
作者姓名:张正竹  宛晓春
作者单位:安徽农业大学茶叶生物化学与生物技术教育部和农业部重点实验室,合肥,230036
基金项目:国家攀登计划项目“茶叶糖苷类香气前体生物化学与分子生物学基础研究”(国科基字[1999]045号):安徽省自然科学研究项目“芳香族糖省的化学合成与应用”(050410302).
摘    要:以单萜烯醇和芳香族醇为主的挥发性物质在茶树叶片中以糖苷的形式大量积累,并在特定条件下(采摘、组织损伤、昆虫侵食、病菌侵染等)被内源酶水解,释放出挥发性苷元,从而表现出气味、抗虫、抗病等特征。茶树也有可能在外在物理或化学因素的诱导下强化挥发物糖苷的生物合成和积累。

关 键 词:茶学  茶树[Camellia sinensis(L.) O. Kuntze]  化感作用  挥发物  糖苷
收稿时间:2005-06-13
修稿时间:2005-06-132005-06-16

Allelopathy Occurred in Tea Garden with Glycosidically Bound Form Volatiles as the Medium
Zhang Zhengzhu,Wan Xiaochun. Allelopathy Occurred in Tea Garden with Glycosidically Bound Form Volatiles as the Medium[J]. Chinese Agricultural Science Bulletin, 2005, 21(10): 47-47
Authors:Zhang Zhengzhu  Wan Xiaochun
Affiliation:(Key Laboratory of Tea Biochemistry & Biotechnology, Ministry of Education and Ministry of Agriculture, Anhui Agricultural University, Hefei 230036)
Abstract:Significant amount of glycosidically bound form volatiles are accumulated in the leaves of Camellia sinensis(L.) O. Kuntze with monoterpene alcohols and aryl alcohols as the major aglycones. These aglycones will be released from their respective glycosides by endogenous enzymatic hydrolysis under the conditions of leaf plucking, tissue damage, pest damage or malady infection etc. The released volatiles play the roles of tea aroma, anti-herbivore or anti-microbial activities. The physical and chemical factors of surrounding stress will probably induce biosynthesis and accumulation of glycosidic aroma precursors.
Keywords:Tea science   Tea plant[Camellia sinensis(L.) O. Kuntze]   Allelopathy   Volatile   Glycoside
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