Spray-induced gene silencing as a potential tool to control rubber tree powdery mildew disease
文献类型： 外文期刊
作者： Cao, Xueren 1 ; Han, Qiaohui 1 ; West, Jonathan S. 3 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Key Lab Integrated Pest Management Trop Crops, Hainan Key Lab Monitoring & Control Trop Agr Pests, Haikou 571101, Peoples R China
2.Guizhou Univ, Ctr R&D Fine Chem, Natl Key Lab Green Pesticide, Key Lab Green Pesticide & Agr Bioengn,Minist Educ, Guiyang 550025, Peoples R China
3.Rothamsted Res, Harpenden AL5 2JQ, England
关键词： Rubber tree powdery mildew; Erysiphe quercicola; dsRNA; Spray-induced gene silencing
期刊名称：PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY （ 影响因子：2.7； 五年影响因子：2.9 ）
ISSN： 0885-5765
年卷期： 2024 年 129 卷
页码：
收录情况： SCI
摘要： Powdery mildew of rubber tree, caused by the obligate biotrophic fungus Erysiphe quercicola, is a serious disease that occurs in all rubber tree growing regions. The disease is mainly controlled by fungicides. Here, an alternative means for powdery mildew control by spraying double-stranded RNAs (dsRNA), which target E. quercicola genes, was investigated. First, we demonstrated that the conidia of E. quercicola can take-up environmental dsRNA. Furthermore, the spraying of dsRNA targeting E. quercicola genes can effectively reduce both the expression of the target gene of the pathogen and the rubber tree powdery mildew severity. The reduction in disease severity was up to 50 % compared to water-treated leaves. These results suggest that Spray-induced gene silencing (SIGS) of the pathogen genes will provide an additional tool to control rubber tree powdery mildew as well as a method to study the function of genes of E. quercicola.
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