Formation and emission of linalool in tea (Camellia sinensis) leaves infested by tea green leafhopper (Empoasca (Matsumurasca) onukii Matsuda)
Formation and emission of linalool in tea (Camellia sinensis) leaves infested by tea green leafhopper (Empoasca (Matsumurasca) onukii Matsuda)
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DOI：
10.1016/j.foodchem.2017.05.124
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发表时间：
2017-12-15
期刊：
影响因子：
8.8
通讯作者：
Yang, Ziyin
中科院分区：
文献类型：
--
作者：
Mei, Xin;Liu, Xiaoyu;Yang, Ziyin
著名的乌龙茶(东方丽人)是由感染茶绿叶蝉的茶叶制成的，含有从芳樟醇中提取的特征挥发性单萜。本研究旨在探讨茶绿叶蝉危害下茶叶中芳樟醇的形成机制。经鉴定，诱导产生特征挥发性物质的茶绿叶蝉为假眼小绿叶蝉。E.(M.)由于芳樟醇合成酶(CsLIS1和CsLIS2)的上调(p<；0.05)，onukii攻击显著诱导了茶叶芳樟醇的释放(p<；0.05)。持续机械损伤显著增加CsLIS1和CsLIS2的表达水平和芳樟醇的释放(p<；0.05)。因此，持续伤害是造成茶树叶片中芳樟醇形成和释放的关键因素。ONKII攻击。这些信息将有助于未来利用植物次生代谢的胁迫反应来改善农产品的品质成分。(C)2017爱思唯尔有限公司。保留所有权利。
Famous oolong tea (Oriental Beauty), which is manufactured by tea leaves (Camellia sinensis) infected with tea green leafhoppers, contains characteristic volatile monoterpenes derived from linalool. This study aimed to determine the formation mechanism of linalool in tea exposed to tea green leafhopper attack. The tea green leafhopper responsible for inducing the production of characteristic volatiles was identified as Empoasca (Matsumurasca) onukii Matsuda. E. (M.) onukii attack significantly induced the emission of linalool from tea leaves (p < 0.05) as a result of the up-regulation of the linalool synthases (CsLIS1 and CsLIS2) (p < 0.05). Continuous mechanical damage significantly enhanced CsLIS1 and CsLIS2 expression levels and linalool emission (p < 0.05). Therefore, continuous wounding was a key factor causing the formation and emission of linalool from tea leaves exposed to E. (M.) onukii attack. This information should prove helpful for the future use of stress responses of plant secondary metabolism to improve quality components of agricultural products. (C) 2017 Elsevier Ltd. All rights reserved.