多样化的宿主目标家族调解了跨植物物种融合进化的效应因子识别
Haseong Kim1, Ye Jin Ahn2, Hyeonjung Lee2
1Plant Immunity Research Center, Seoul National University, Seoul, 08826, Republic of Korea.
Current opinion in plant biology
|June 9, 2023
概括
植物免疫受体,核酸结合氨酸丰富的重复受体 (NLRs),识别病原体效应体. 主体守护者/诱 (HGDs) 扩大了这种识别,揭示了保存的HGDs和各种NLRs,以获得强大的植物免疫力.
科学领域:
- 植物免疫力 植物免疫力
- 分子植物微生物相互作用.
- 植物遗传学 植物遗传学
背景情况:
- 植物免疫受体,通常是核酸结合的氨酸丰富的重复受体 (NLR),对于检测病原体作用因子和启动作用因子触发免疫力 (ETI) 至关重要.
- 通过监测宿主守护者/诱 (HGD),NLRs直接或间接地识别效应者.
- HGDs被病原体效应因子修改,扩大了已知的效应因子的范围,并增强了植物免疫系统的强度.
研究的目的:
- 调查HGD在扩大NLR的效应器识别频谱中的作用.
- 探索HGD多样化如何为NLRs的新效应因子识别做出贡献的机制基础.
主要方法:
- 在植物物种中对保存的HGD家族和非正统的NLR进行比较分析.
- 研究由多种效应因素对HGDs的生物化学修饰.
- 关于HGD-NLR相互作用的功能研究.
主要成果:
- 效应因子准的HGD家族通常在植物物种中得到保护,而相应的NLR则没有.
- 多样化的HGD可以激活多个非正统的NLR,表明一个保存的识别机制.
- HGD显著扩大了植物免疫系统的效应器识别能力.
结论:
- HGD在扩大NLRs的效应因子识别方面发挥着关键作用,有助于强大的植物免疫力.
- 随着NLR多样化的同时,HGD的保护表明了适应各种病原体的进化策略.
- 对HGD的进一步研究对于理解新型效应因子识别机制和增强植物抗病能力至关重要.
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