微生物诱导的耐药性涉及根据草食动物的阶段直接或间接防御的启动
Javier Rivero1,2, Iván Fernández3, Francisco J Colina3
1Department of Soil and Plant Microbiology, Estación Experimental del Zaidín - Consejo Superior de Investigaciones Científicas (EEZ-CSIC), Granada, 18008, Spain.
The New phytologist
|October 30, 2025
概括
微生物诱导的耐药性 (MIR) 主要是植物对草食动物的直接和间接防御. 这种动态反应通过调整防御策略以适应草食时间来增强植物的弹性,改善了植物及其自然敌人的结果.
科学领域:
- 植物与微生物的相互作用
- 植物防御机制 植物防御机制
- 生态学和进化生物学.
背景情况:
- 微生物诱导的耐药性 (MIR) 涉及植物对微生物的反应,这些微生物对草食动物产生耐药性.
- 之前的研究已经孤立地研究了直接或间接的植物防御,忽视了他们在MIR下潜在的相互作用.
- 了解直接和间接防御之间的相互作用对于全面了解多重性系统中MIR表型至关重要.
研究的目的:
- 研究MIR引起的植物对草食动物的直接和间接防御之间的相互作用.
- 为了确定不同的MIR引起的真菌 (状菌根和Trichoderma) 如何影响植物防御策略.
- 探索MIR表型的可塑性,以响应三系统中的草食动物时间.
主要方法:
- 使用了包括番茄植物,食草动物Manduca sexta和寄生虫Cotesia congregata在内的三系统.
- 采用了两种MIR引起的真菌:一个状菌根真菌和一个Trichoderma物种.
- 进行生物测试,包括性能和行为测试,以评估植物防御反应及其潜在机制.
主要成果:
- MIR动态地引起直接和间接的防御特征,这些特征随着草食动物的持续时间而塑性地调整.
- 短期的草食主要是莉花调节的防御,增加早期的草食者死亡率.
- 长期的草食,特别是Trichoderma,增强了挥发性排放,吸引了更多的寄生虫,并改善了寄生虫的性能.
结论:
- MIR通过以特定阶段的方式启动直接和间接防御来增强植物的耐药性.
- 这些原始防御表现出互补和协同作用的相互作用,导致增强的整体MIR表型.
- 这项研究强调了在植物防御策略中考虑多性相互作用和时间动态的重要性.
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