The microRNA OsmiR393 regulates rice brown planthopper resistance by modulating the auxin-ROS signaling cross-talk
文献类型： 外文期刊
作者： Zhu, Lin 1 ; Li, Haichao 2 ; Tao, Zhihuan 2 ; Ma, Feilong 4 ; Wu, Shujun 1 ; Miao, Xuexia 2 ; Cao, Liming 1 ; Shi, Zhenying 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Minist Agr & Rural Affairs, Crop Breeding & Cultivat Res Inst, Key Lab Germplasm Innovat & Genet Improvement Grai, Shanghai 201403, Peoples R China
2.Chinese Acad Sci, Inst Plant Physiol & Ecol, CAS Ctr Excellence Mol Plant Sci, Key Lab Plant Design, Shanghai 200032, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Zhoukou Normal Univ, Key Lab Plant Genet & Mol Breeding, Zhoukou 466001, Peoples R China
期刊名称：SCIENCE ADVANCES （ 影响因子：12.5； 五年影响因子：14.1 ）
ISSN： 2375-2548
年卷期： 2025 年 11 卷 20 期
页码：
收录情况： SCI
摘要： Auxin plays critical roles in plant development and stress response. However, the roles of auxin and the immune signaling factor, reactive oxygen species (ROS), in resistance to the brown planthopper (BPH), a notorious rice-specific piercing-sucking insect that causes severe yield losses, remain unclear. We revealed that moderate naphthalene acetic acid treatment activates rice resistance to BPH, BPH infestation induces ROS accumulation, and increase in ROS content promotes BPH resistance. Underlying these phenomena, the auxin receptors OsTIR1 and OsAFB2 positively, whereas the posttranscriptional regulator OsmiR393 negatively, regulate BPH resistance. Downstream of the OsmiR393/OsTIR1 module, through successive genetic function analysis of each gene, solid genetic relationship analysis, and various biochemical assays, we established an OsmiR393/OsTIR1-OsIAA10-OsARF12-OsRbohB genetic pathway that mediates BPH resistance, in which ROS are integral. Such cross-talk between auxin and ROS reveals the intricate signaling network underlying BPH resistance, which might assist with BPH resistance breeding.
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