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Rhodopseudomonas palustris Atp2 Protein Exerts Antifungal Effects by Targeting the Ribosomal Protein MoRpl12 in Magnaporthe oryzae

文献类型： 外文期刊

作者： Chen, Chunyan 1 ; Wu, Xiyang 1 ; Huang, Qiang 1 ; Qin, Yingfei 1 ; Li, Chenggang 1 ; Zhang, Xin 1 ; Wang, Pei 1 ; Tan, Xinqiu 1 ; Liu, Yong 1 ; Chen, Yue 1 ; Zhang, Deyong 1 ;

作者机构： 1.Hunan Acad Agr Sci, Yuelushan Lab, Changsha, Peoples R China

2.Hunan Acad Agr Sci, Inst Plant Protect, Changsha, Peoples R China

3.Hunan Univ, Coll Biol, Longping Branch, Changsha, Peoples R China

关键词： Atp2; Magnaporthe oryzae; Rhodopseudomonas palustris; ribosomal protein MoRpl12

期刊名称：PHYTOPATHOLOGY （ 影响因子：3.1； 五年影响因子：3.5 ）

ISSN： 0031-949X

年卷期： 2024 年 114 卷 10 期

页码：

收录情况： SCI

摘要： Rice blast is one of the most hazardous diseases affecting rice production. Previously, we discovered that the Atp2 protein of Rhodopseudomonas palustris could significantly inhibit the appressorium formation and pathogenicity of Magnaporthe oryzae. However, the molecular mechanism of this fungus has remained unknown. This study revealed that Atp2 can enter the cell and interact with the ribosomal protein MoRpl12 of M. oryzae, directly affecting the expression of the MoRpl12 protein. Silencing the MoRPL12 gene can affect cell wall integrity, growth, conidiogenesis, and fungal pathogenicity. The quantitative reverse transcription PCR results showed significant changes in the expression of conidiation-related genes in the MoRPL12 gene-silenced mutants or in the Atp2 protein-treated plants. We further found that Atp2 treatment can influence the expression of ribosomal-related genes, such as RPL, in M. oryzae. Our study revealed a novel antifungal mechanism by which the Atp2 protein binds to the ribosomal protein MoRpl12 and inhibits the pathogenicity of rice blast fungus, providing a new potential target for rice blast prevention and control.

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