快速的本地和系统的莉花信号驱动着植物系统免疫的启动和建立
Trupti Gaikwad1,2, Susan Breen1,3, Emily Breeze1
1School of Life Sciences, University of Warwick, Coventry, UK.
Nature plants
|January 6, 2026
概括
在效应器触发免疫 (ETI) 过程中,雅斯蒙酸信号发射启动了植物系统性获得抵抗 (SAR) 和表面电位. 一个新的JISS1::LUC记者揭示了早期SAR动态,突出了莉花.
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.
- 植物免疫力 植物免疫力
背景情况:
- 效应器触发免疫 (ETI) 涉及局部细胞死亡和系统性获得性抵抗 (SAR).
- 沙尔是一种广泛的防御,对植物对病原体的保护至关重要.
- 了解SAR信号动态是提高植物抗病能力的关键.
研究的目的:
- 为可视化SAR信号动态开发一个敏感的报道系统.
- 为了研究莉花在ETI诱导的SAR中信号传递的作用.
- 确定涉及SAR启动和传播的新型组件.
主要方法:
- 开发一个JISS1::LUC (露西法酶) 报告系统.
- 在受病原体挑战的植物中利用ETI诱导.
- 采用基因突变影响SAR,莉花酸路径和信号.
- 测量系统表面的电潜.
主要成果:
- JISS1::LUC记者捕获了早期ETI引起的SAR信号,独立于经典SAR突变,但依赖于和伤口反应.
- 雅斯莫纳特生物合成和感知突变物取消了JISS1::LUC信号和SAR.
- ETI启动了依赖于士的全身表面电位,依赖于谷氨酸受体和JISS1.
- JISS1和谷氨酸受体突变并没有改变Pseudomonas syringae的SAR.
结论:
- 雅斯莫纳特信号传递对于SAR的快速启动和建立至关重要.
- JISS1在莉花依赖的系统性防御反应中发挥作用,包括表面潜力.
- JISS1::LUC报告员是剖析SAR途径的一个有价值的工具.
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