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Isoprenylation modification is required for HIPP1-mediated powdery mildew resistance in wheat

文献类型： 外文期刊

作者： Wang, Zongkuan 1 ; Zhang, Heng 1 ; Li, Yingbo 1 ; Chen, Yiming 1 ; Tang, Xiong 1 ; Zhao, Jia 1 ; Yu, Feifei 1 ; Wang, Haiyan 1 ; Xiao, Jin 1 ; Liu, Jia 1 ; Zhang, Xu 1 ; Sun, Li 1 ; Xie, Qi 1 ; Wang, Xiue 1 ;

作者机构： 1.Nanjing Agr Univ JCIC MCP, Coll Agr, Cytogenet Inst, State Key Lab Crop Genet & Germplasm Enhancement, Nanjing, Jiangsu, Peoples R China

2.Chinese Acad Sci, Inst Genet & Dev Biol, Beijing, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Virol & Biotechnol, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou, Zhejiang, Peoples R China

4.Shanghai Acad Agr Sci, Biotech Res Inst, Shanghai Key Lab Agr Genet & Breeding, Shanghai, Peoples R China

关键词： heavy-metal-associated protein; plant defence signalling; protein isoprenylation modification; Triticum aestivum L

期刊名称：PLANT CELL AND ENVIRONMENT （ 影响因子：7.947； 五年影响因子：8.452 ）

ISSN： 0140-7791

年卷期： 2023 年 46 卷 1 期

页码：

收录情况： SCI

摘要： Powdery mildew (Pm), caused by Blumeria graminis f.sp. tritici (Bgt), is one of the most important wheat diseases. Heavy-metal-associated isoprenylated plant protein (HIPP1) has been proved playing important roles in response to biotic and a biotic stress. In present study, we proved HIPP1-V from Haynalidia villosa is a positive regulator in Pm resistance. HIPP1-V was rapidly induced by Bgt. Transiently or stably heterologous overexpressing HIPP1-V in wheat suppressed the haustorium formation and enhanced Pm resistance. HIPP1-V isoprenylation was critical for plasma membrane (PM) localization, interaction with E3-ligase CMPG1-V and function in Pm resistance. Bgt infection recruited the isoprenylated HIPP1-V and CMPG1s on PM; blocking the HIPP1 isoprenylation reduced such recruitment and compromised the resistance of OE-CMPG1-V and OE-HIPP1-V. Overexpressing HIPP1-VC148G could not enhance Pm resistance. These indicated the Pm resistance was dependent on HIPP1-V's isoprenylation. DGEs related to the ROS and SA pathways were remarkably enriched in OE-HIPP1-V, revealing their involvement in Pm resistance. Our results provide evidence on the important role of protein isoprenylation in plant defense.

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