Tagitinin A regulates an F-box gene, CPR30, to resist tomato spotted wilt orthotospovirus (TSWV) infection in Nicotiana benthamiana
文献类型： 外文期刊
作者： Li, Jing 1 ; Ai, Xiaoman 1 ; Zhang, Suhua 2 ; Zheng, Xue 2 ; Zhang, Lizhen 2 ; Zhang, Jie 2 ; Zhao, Lihua 2 ;
作者机构： 1.Southwest Forestry Univ, Coll Biol Sci & Food Engn, Kunming, Peoples R China
2.Yunnan Acad Agr Sci, Inst Biotechnol & Germplasm Resources, Yunnan Prov Key Lab Agr Biotechnol, Kunming, Peoples R China
期刊名称：PLOS ONE （ 影响因子：2.6； 五年影响因子：3.2 ）
ISSN： 1932-6203
年卷期： 2024 年 19 卷 12 期
页码：
收录情况： SCI
摘要： Tomato spotted wilt orthotospovirus (TSWV) is one of the most destructive pathogens and causes serious losses in agriculture worldwide. Biogenic pesticides application may be an effective approach for defending against TSWV. Tagitinin A (Tag A) extracted from Tithonia diversifolia (Hemsl.) A. Gray has a high protective effect against TSWV infection. Tag A can induce jasmonic acid to suppress gene expression in TSWV. In this study, the F-box protein (CPR30) was mediated by Tag A, the expression of the CPR30 gene in Tag A-treated leaves was significantly higher (2 times) than that of the negative control. Furthermore, the replication of TSWV-NSm/NSs genes and the expression of TSWV-NSm/NSs proteins significantly increased after silencing the CPR30 gene in protective assays; CPR30 overexpression showed the opposite tendency. The CPR30 protein only localized and interacted with the TSWV-NSm protein. Thus, this study reveals a new mechanism by which Tag A mediates ubiquitin-protein ligase E3 (CPR30) to interact with NSm inhibite NSm replication and expression, and defend against systemic TSWV infection.
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