Spray-induced gene silencing as a potential tool to control rubber tree powdery mildew disease

文献类型: 外文期刊

第一作者: Cao, Xueren

作者: Cao, Xueren;Han, Qiaohui;Han, Qiaohui;West, Jonathan S.

作者机构:

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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