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OsCERK1 Contributes to Cupric Oxide Nanoparticles Induced Phytotoxicity and Basal Resistance against Blast by Regulating the Anti-Oxidant System in Rice

文献类型： 外文期刊

作者： Chen, Ya 1 ; Liu, Zhiquan 1 ; Meng, Shuai 1 ; Shen, Zhenan 1 ; Shi, Huanbin 1 ; Qiu, Jiehua 1 ; Lin, Fucheng 2 ; Zhang, Shu 4 ; Kou, Yanjun 1 ;

作者机构： 1.China Natl Rice Res Inst, State Key Lab Rice Biol, Hangzhou 311400, Peoples R China

2.Zhejiang Univ, Coll Agr & Biotechnol, Hangzhou 310058, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China

4.Minist Agr, Key Lab Integrated Pest Management Crops Cent Chin, Wuhan 430064, Peoples R China

5.Hubei Acad Agr Sci, Inst Plant Protect & Soil Fertilizer, Wuhan 430064, Peoples R China

6.Hubei Key Lab Crop Dis, Insect Pests & Weeds Control, Wuhan 430064, Peoples R China

关键词： Oryza sativa; Magnaporthe oryzae; rice blast; basal resistance; cupric oxide nanoparticles; ROS

期刊名称：JOURNAL OF FUNGI （ 影响因子：4.7； 五年影响因子：5.2 ）

ISSN：

年卷期： 2023 年 9 卷 1 期

页码：

收录情况： SCI

摘要： CuO NPs (cupric oxide nanoparticles) are widely used in various fields due to their high electrical conductivity, electronic correlation effect, and special physical property. Notably, CuO NPs have good application prospects in agricultural production because of its antifungal activity to prevent crop diseases. However, the increasing release of CuO NPs into the environment has resulted in a serious threat to the ecosystem, including plants. Previous studies have reported the toxicity of CuO NPs on rice, but little is known about the underlying molecular mechanisms or specific genes involved in the response to CuO NPs. In this study, we found that the rice well-known receptor Chitin Elicitor Receptor Kinase 1 (OsCERK1), which is essential for basal resistance against pathogens, is involved in CuO NPs stress in rice. Knockout of OsCERK1 gene resulted in enhanced tolerance to CuO NPs stress. Furthermore, it was revealed that OsCERK1 reduces the tolerance to CuO NPs stress by regulating the anti-oxidant system and increasing the accumulation of H2O2 in rice. In addition, CuO NPs treatment significantly enhances the basal resistance against M. oryzae which is mediated by OsCERK1. In conclusion, this study demonstrated a dual role of OsCERK1 in response to CuO NPs stress and M. oryzae infection by modulating ROS accumulation, which expands our understanding about the crosstalk between abiotic and biotic stresses.

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