COPT4与COPT1或COPT3相互作用,以操纵Arabidopsis中铜触发免疫力的信号响应
Haoran Xia1,2, Yue Yu1, Zhenfei Chen1,2
1State Key Laboratory of Hybrid Rice, Hubei Provincial Research Center for Basic Biological Sciences, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
The New phytologist
|March 2, 2026
概括
铜运输体 (COPT) 和护送体 (CC) 是植物免疫的关键. 这项研究揭示了COPT4与COPT1/COPT3和ATX1相互作用,通过bHLH107-ACS8通路激活铜触发免疫力.
科学领域:
- 植物分子生物学 植物分子生物学
- 植物免疫力 植物免疫力
- 金属的平衡是金属的平衡.
背景情况:
- 铜运输体 (COPT) 和护送体 (CC) 对铜 (Cu+) 运输和恒温至关重要.
- 通过基本螺旋环-螺旋107 (bHLH107) 介导的ACC合成8 (ACS8) 激活对于Arabidopsis的Cu+触发免疫 (CuTI) 是必不可少的.
研究的目的:
- 确定参与CuTI的COPT和CC.
- 阐明这些成分在植物对铜的免疫反应中的作用.
主要方法:
- 选六个copt突变体的Cu+介导耐药性和ACS8激活.
- 蛋白质相互作用测试 (分裂露西法酶补充,酵母两杂交,拉下).
- 使用RNA-seq和RT-qPCR分析Cu+触发的防御反应.
主要成果:
- 只有copt4突变体表现出受损的Cu+介导免疫力和废除的Cu+运输.
- COPT4与COPT1和COPT3相互作用; copt1 copt3突变也显示了细菌负载的减少和ACS8诱导.
- 在CuTI中,抗氧化剂1 (ATX1) 的阿拉比多普西斯同类物与COPT1/COPT3相互作用,但与COPT4不相互作用.
结论:
- 在CuTI中,COPT4,COPT1和COPT3功能是多余的.
- COPT4与ATX1相互作用,激活铜触发免疫的bHLH107-ACS8模块.
关键词:
ACS8 ACS8 ACS8 ACS8 ACS8 ACS8 ACS8 ACS8 ACS8 ACS8 ACS8 ACS8 ACS8 ACS8阿拉比多普西斯塔利亚纳.铜的陪伴者一个人.铜运输机 铜运输机植物免疫力 植物免疫力更多相关视频
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