Formation of alpha-Farnesene in Tea (Camellia sinensis) Leaves Induced by Herbivore-Derived Wounding and Its Effect on Neighboring Tea Plants
文献类型： 外文期刊
作者： Wang, Xuewen 1 ; Zeng, Lanting 1 ; Liao, Yinyin 1 ; Li, Jianlong 5 ; Tang, Jinchi 5 ; Yang, Ziyin 1 ;
作者机构： 1.Chinese Acad Sci, Key Lab South China Agr Plant Mol Anal & Genet Im, Xingke Rd 723, Guangzhou 510650, Guangdong, Peoples R China
2.Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, Xingke Rd 723, Guangzhou 510650, Guangdong, Peoples R China
3.Univ Chinese Acad Sci, Yuquan Rd 19A, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Ctr Econ Bot, Core Bot Gardens, Xingke Rd 723, Guangzhou 510650, Guangdong, Peoples R China
5.Guangdong Acad Agr Sci, Tea Res Inst, Dafeng Rd 6, Guangzhou 510640, Guangdong, Peoples R China
6.Guangdong Prov Key Lab Tea Plant Resources Innova, Dafeng Rd 6, Guangzhou 510640, Guangdong, Peoples R China
关键词： aroma; Camellis sinensis; alpha-farnesene synthetase; herbivore; jasmonic acid; signaling; tea; volatile
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.923； 五年影响因子：6.132 ）
ISSN：
年卷期： 2019 年 20 卷 17 期
页码：
收录情况： SCI
摘要： Herbivore-induced plant volatiles (HIPVs) play important ecological roles in defense against stresses. In contrast to model plants, reports on HIPV formation and function in crops are limited. Tea (Camellia sinensis) is an important crop in China. alpha -Farnesene is a common HIPV produced in tea plants in response to different herbivore attacks. In this study, a C. sinensis alpha -farnesene synthase (CsAFS) was isolated, cloned, sequenced, and functionally characterized. The CsAFS recombinant protein produced in Escherichia coli was able to transform farnesyl diphosphate (FPP) into alpha -farnesene and also convert geranyl diphosphate (GPP) to beta -ocimene in vitro. Furthermore, transient expression analysis in Nicotiana benthamiana plants indicated that CsAFS was located in the cytoplasm and could convert FPP to alpha -farnesene in plants. Wounding, to simulate herbivore damage, activated jasmonic acid (JA) formation, which significantly enhanced the CsAFS expression level and alpha -farnesene content. This suggested that herbivore-derived wounding induced alpha -farnesene formation in tea leaves. Furthermore, the emitted alpha -farnesene might act as a signal to activate antibacterial-related factors in neighboring undamaged tea leaves. This research advances our understanding of the formation and signaling roles of common HIPVs in crops such as tea plants.
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