费罗波丁1的自调节诱导了大米爆炸中的发育性铁亡
Ruhui Long1, Meiling Liang2, Qing Shen3
1State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China.
Autophagy
|August 7, 2025
概括
米爆真菌使用铁致死,由铁出口商MoFpn1.1.监管. 自介导的MoFpn1降解控制铁含量,影响病原性和宿主入侵.
科学领域:
- 菌类学 菌类学是指菌类学.
- 植物病理学 植物病理学
- 细胞生物学 细胞生物学
背景情况:
- 米爆真菌 (Magnaporthe oryzae) 对全球粮食安全构成重大威胁.
- 康尼迪亚的自细胞死亡对于通过appressorium介导的宿主入侵至关重要.
- 通过自调节的铁死与M. oryzae的状死亡有关.
研究的目的:
- 描述铁出口者MoFpn1在M. oryzae铁和致病性中的作用.
- 研究MoFpn1通过自的调节及其在状和压状发育过程中的局部化.
主要方法:
- 酵母两杂交 (Y2H) 和双分子光补充 (BiFC) 试验用于研究蛋白质相互作用.
- 光显微镜用于追踪MoFpn1在状体和压缩体中的定位.
- 基因删除研究 (ATG8,VAM7) 以评估它们对MoFpn1定位和功能的影响.
主要成果:
- 失去MoFpn1会增加细胞内铁的含量,加速状死亡,降低对liproxstatin-1的敏感性.
- MoFpn1局限于穿孔/膀性器官,真空孔和压缩体的血膜.
- 自成分 (Atg8,Vam7) 调解了MoFpn1降解到真空光线中,这对致病性至关重要.
结论:
- 在M. oryzae中,MoFpn1通过出口铁来负面调节铁.
- 通过Atg8和Vam7对MoFpn1的自依赖性降解对于控制铁含量,状死亡和致病性至关重要.
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