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Overexpression of plant chitin receptors in wheat confers broad-spectrum resistance to fungal diseases

文献类型： 外文期刊

作者： Wang, Lirong 1 ; He, Yi 2 ; Guo, Ge 3 ; Xia, Xiaobo 3 ; Dong, Yifan 3 ; Zhang, Yicong 3 ; Wang, Yuhua 3 ; Fan, Xing 3 ; Wu, Lei 2 ; Zhou, Xinli 1 ; Zhang, Zhengguang 3 ; Li, Gang 3 ;

作者机构： 1.Southwest Univ Sci & Technol, Sch Life Sci & Engn, Mianyang 629000, Peoples R China

2.Jiangsu Acad Agr Sci, CIMMYT JAAS Joint Ctr Wheat Dis, Res Ctr Wheat Scab, Zhongshan Biol Breeding Lab, Nanjing 210014, Peoples R China

3.Nanjing Agr Univ, Coll Plant Protect, Dept Plant Pathol, Nanjing 210095, Peoples R China

关键词： CERK1; chitin; immune response; fungal diseases; resistance; transgenics; wheat; Arabidopsis

期刊名称：PLANT JOURNAL （ 影响因子：5.7； 五年影响因子：7.0 ）

ISSN： 0960-7412

年卷期： 2024 年 120 卷 3 期

页码：

收录情况： SCI

摘要： Wheat (Triticum aestivum L.) is a globally staple crop vulnerable to various fungal diseases, significantly impacting its yield. Plant cell surface receptors play a crucial role in recognizing pathogen-associated molecular patterns (PAMPs) and activating PAMP-triggered immunity, boosting resistance against a wide range of plant diseases. Although the role of plant chitin receptor CERK1 in immune recognition and defense has been established in Arabidopsis and rice, its function and potential agricultural applications in enhancing resistance to crop diseases remain largely unexplored. Here, we identify and characterize TaCERK1 in Triticeae crop wheat, uncovering its involvement in chitin recognition, immune regulation, and resistance to fungal diseases. By a comparative analysis of CERK1 homologs in Arabidopsis and monocot crops, we demonstrate that AtCERK1 in Arabidopsis elicits the most robust immune response. Moreover, we show that overexpressing TaCERK1 and AtCERK1 in wheat confers resistance to multiple fungal diseases, including Fusarium head blight, stripe rust, and powdery mildew. Notably, transgenic wheat lines with moderately expressed AtCERK1 display superior disease resistance and heightened immune responses without adversely affecting growth and yield, compared to TaCERK1 overexpression transgenics. Our findings highlight the significance of plant chitin receptors across diverse plant species and suggest potential strategies for bolstering crop resistance against broad-spectrum diseases in agricultural production through the utilization of plant immune receptors.

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