Heterotrimeric G protein interacts with MLO1 to regulate a trade-off between disease resistance and growth in wheat
文献类型： 外文期刊
作者： 张韫玮;;杨子怡;;白宛青;;黄淑贤;;陈耀宇;;孙加强
作者机构：
期刊名称： Physiologia Plantarum
ISSN： 0031-9317
年卷期： 2025 年 177 卷 1 期
页码：
收录情况： SCIE（2025版）
摘要： The molecular mechanisms underlying the balance between disease resistance and growth in wheat remain largely unclear. Here, we report that CRISPR/Cas9-guided gene-editing mutants of wheat G alpha subunit exhibit compact plant architecture and enhanced resistance against powdery mildew but with a compromise in yield traits. RNA-seq analyses show that some growth-related genes were down-regulated while some disease resistance-related genes were up-regulated in the Tagα-aabbdd mutant. We demonstrate that the C-terminal peptide403-534 of TaMLO1 mediates the interaction with TaGα. Furthermore, TaMLO1 can significantly interfere with the interaction between TaGα and TaGβ. Taken together, we discover the functional association of TaMLO1 and heterotrimeric G protein in regulating a trade-off between disease resistance and growth in wheat.
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