伪蒙娜斯注射器 pv. 独特的效应器HopZ5与GF14C相互作用,触发植物免疫力
Mingxia Zhou1,2, Jinglong Zhang1,2, Zhibo Zhao1,3
1State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A&F University, Yangling 712100, Shaanxi, China.
Phytopathology
|August 5, 2024
概括
细菌致癌病原体Pseudomonas syringae pv. 这是一种细菌致癌病原体. 动 (Psa) 使用的效应器是HopZ5.5. 植物通过与GF14C相互作用来识别HopZ5,GF14C激活了植物对Psa的免疫力.
科学领域:
- 植物病理学 植物病理学
- 分子植物-微生物相互作用
- 生物化学 生化学
背景情况:
- 细菌性癌症,是由Pseudomonas syringae pv引起的. (Psa),严重影响全球果产量.
- Psa使用效应蛋白来抑制植物免疫力并确保病原体的生存.
研究的目的:
- 研究Psa效应物HopZ5在植物病原体相互作用中的作用.
- 为了确定与HopZ5相互作用并调节植物免疫力的植物蛋白质.
主要方法:
- 用HopZ5.5进行Nicotiana benthamiana的农业透.
- 免疫相关基因的基因表达分析.
- 共同免疫沉以检测蛋白质与蛋白质相互作用.
- 在N. benthamiana和果中进行基因沉默和过度表达研究.
主要成果:
- 在N. benthamiana中,HopZ5诱导了细胞死亡和免疫反应,包括上调免疫基因,活性氧物种和积.
- HopZ5与N. benthamiana (NbGF14C) 和果 (AcGF14C) 中的GF14C蛋白直接相互作用.
- 抑制NbGF14C减少了HopZ5介导的细胞死亡,而过度表达NbGF14C和AcGF14C增强了植物对病原体的抵抗力.
结论:
- 植物识别了Psa效应器HopZ5,并触发了免疫反应.
- GF14C作为HopZ5的植物受体,在激活植物免疫力方面发挥着关键作用.
- GF14C积极调节植物对Psa和其他病原体的免疫力.
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