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

第一作者： Zhang, Yunwei

作者： Zhang, Yunwei;Yang, Ziyi;Bai, Wanqing;Huang, Shuxian;Chen, Yaoyu;Sun, Jiaqiang

作者机构：

期刊名称：PHYSIOLOGIA PLANTARUM （ 影响因子：3.6； 五年影响因子：5.4 ）

ISSN： 0031-9317

年卷期： 2025 年 177 卷 1 期

页码：

收录情况： SCI

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 Tag alpha-aabbdd mutant. We demonstrate that the C-terminal peptide403-534 of TaMLO1 mediates the interaction with TaG alpha. Furthermore, TaMLO1 can significantly interfere with the interaction between TaG alpha and TaG beta. 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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