Transcription factor OsSPL10 interacts with OsJAmyb to regulate blast resistance in rice
Transcription factor OsSPL10 interacts with OsJAmyb to regulate blast resistance in rice
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DOI：
10.1016/j.cj.2023.10.015
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发表时间：
2023-12
期刊：
影响因子：
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通讯作者：
Zaofa Zhong;Lijing Zhong;Xiang Zhu;Yimin Jiang;Yihong Zheng;Tao Lan;Haitao Cui
中科院分区：
文献类型：
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作者：
Zaofa Zhong;Lijing Zhong;Xiang Zhu;Yimin Jiang;Yihong Zheng;Tao Lan;Haitao Cui
转录因子在植物对病原体的免疫应答激活过程中的转录重编程中起着至关重要的作用。OsSPL10（SQUAMOSA启动子结合蛋白样10）是调控水稻毛状体发育和耐盐性的重要TF。在这里，我们报道了osspl10的敲除降低了水稻对稻瘟病的抗性，而其过表达增强了水稻对稻瘟病的抗性。osspl10正调控几丁质诱导的免疫反应，包括活性氧（ROS）爆发和胼胝质沉积。我们发现OsSPL10与参与茉莉酸（JA）信号传导的重要TF OsJAmyb物理结合，并积极调节其蛋白稳定性。然后我们证明OsJAmyb正调节爆炸阻力。我们的研究结果揭示了一个由OsSPL10和OsJAmyb组成的分子模块，积极调节blast抗性。
Transcription factors (TFs) play essential roles in transcriptional reprogramming during activation of plant immune responses to pathogens.OsSPL10(SQUAMOSA promoter binding protein-like10) is an important TF regulating trichome development and salt tolerance in rice. Here we report that knockout ofOsSPL10reduces whereas its overexpression enhances rice resistance to blast disease.OsSPL10positively regulates chitin-induced immune responses including reactive oxygen species (ROS) burst and callose deposition. We show that OsSPL10 physically associates with OsJAmyb, an important TF involved in jasmonic acid (JA) signaling, and positively regulates its protein stability. We then prove that OsJAmyb positively regulates resistance to blast. Our results reveal a molecular module consisting of OsSPL10 and OsJAmyb that positively regulates blast resistance.