Integrated Metabolomic and Transcriptomic Profiling Reveals the Defense Response of Tea Plants (Camellia sinensis) to Toxoptera aurantii
文献类型： 外文期刊
作者： Jiang, Wenbin 1 ; Wu, Mengyang 1 ; Fan, Jinjuan 1 ; Lu, Changhao 2 ; Dong, Wenmei 1 ; Chen, Wenlong 2 ; Chen, Zhengwu 3 ; Dai, Xinlong 1 ; He, Yingqin 1 ; Niu, Suzhen 4 ;
作者机构： 1.Guizhou Univ, Coll Tea Sci, Guiyang 550025, Guizhou, Peoples R China
2.Guizhou Univ, Inst Entomol, Guizhou Prov Key Lab Agr Pest Management Mountaino, Guiyang 550025, Guizhou, Peoples R China
3.Guizhou Acad Agr Sci, Guizhou Tea Res Inst, Guiyang 550006, Guizhou, Peoples R China
4.Guizhou Univ, Inst Agrobioengineering, Guiyang 550025, Guizhou, Peoples R China
关键词：
tea plant;
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.2； 五年影响因子：6.4 ）
ISSN： 0021-8561
年卷期： 2024 年 72 卷 49 期
页码：
收录情况： SCI
摘要： The tea plant (Camellia sinensis) is a unique beverage crop worldwide, but its yield and quality are adversely affected by Toxoptera aurantii. However, the response mechanisms of tea plants to T. aurantii stress remain poorly known. Herein, we present the life table of T. aurantii on resistant (W016) and susceptible (HJY) tea cultivars, demonstrating that the fitness of T. aurantii on W016 was lower than that on HJY. Integrated metabolic and transcriptomic analyses revealed that T. aurantii feeding activated pathways associated with phenylpropanoid biosynthesis, plant hormone signal transduction, and ATP-binding cassette (ABC) transporters. Notably, T. aurantii feeding significantly upregulated the levels of brassinolide and p-coumaryl alcohol in W016 but not in HJY. Furthermore, in vitro enzymatic assays indicated that C. sinensis cinnamyl alcohol dehydrogenase (CsCAD1) catalyzes the formation of p-coumaryl alcohol participation in lignin synthesis. Our findings highlight the role of brassinolide-mediated lignin biosynthesis of the tea plant in response to T. aurantii feeding.
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