通过细菌病原体抑制NLR介导的植物免疫检测
José S Rufián1, Javier Rueda-Blanco, Carmen R Beuzón1
1Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora', Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Depto. Biología Celular, Genética y Fisiología, Málaga, Spain.
Journal of experimental botany
|July 10, 2023
概括
致病细菌通过部署针对细胞内受体的效应体来抑制植物免疫力 (效应体触发免疫力,ETI). 这些细菌协调多个效应器,以逃避检测并破坏植物防御机制.
科学领域:
- 植物病理学 植物病理学
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 植物拥有双分支的免疫系统来防御病原体.
- 一个分支涉及表面受体检测病原体相关的分子模式.
- 另一个分支,效应器触发免疫 (ETI),使用细胞内受体 (NLR) 检测病原体效应器.
研究的目的:
- 审查抑制ETI的细菌策略.
- 检查细菌效应物的作用及其在毒性中的相互作用.
- 了解病原体如何逃避NLR介导的免疫力.
主要方法:
- 对植物免疫和细菌病原性现有文献的审查.
- 对效应器介导的抑制机制的分析.
- 讨论NLR功能和效应器相互作用.
主要成果:
- 病原性细菌使用协调的效应器来抑制ETI.
- 细菌效应体可以通过改变向蛋白来逃避NLR检测.
- 病毒性依赖于细菌因子之间的复杂的表皮性相互作用.
结论:
- 细菌病原体积极抑制植物效应因子触发的免疫力.
- 对细菌毒性而言,协调的效应因子作用至关重要.
- 了解这些相互作用可以揭示疾病控制的新目标.
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