主体代谢变化 介导生物圈微生物 在Xanthomonas oryzae pv oryzae感染后的防御
Hubiao Jiang1, Xinyan Xu1, Luqiong Lv1
1State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China.
Journal of agricultural and food chemistry
|December 18, 2024
概括
米细菌叶病是由植物的代谢变化招募的有益微生物管理的. 这些微生物,包括Brevundimonas,Pantoea和Stenotrophomonas,减少疾病并增强植物免疫力.
科学领域:
- 植物病理学 植物病理学
- 微生物组研究 微生物组研究
- 农业科学 农业科学
背景情况:
- 由Xanthomonas oryzae pv oryzae (Xoo) 引起的水细菌叶病对全球粮食安全构成重大威胁.
- 植物界微生物群在植物对病原体的防御中的作用尚未完全理解.
- 微生物招募和植物疾病耐药性的机制需要进一步研究.
研究的目的:
- 为了研究大米植物圈微生物对Xoo感染的反应.
- 探索微生物防御和宿主耐药性的机制.
- 确定关键的微生物参与者和参与疾病抑制的宿主代谢物.
主要方法:
- 使用了一种全面的多体经济学方法.
- 分析了植物圈微生物社区结构和功能感染后的变化.
- 进行了代谢物分析,以确定关键的招募化合物.
- 评估了被招募的微生物的减少疾病的能力和防御机制.
主要成果:
- 的感染显著改变了植物圈的微生物群体,增加了网络的复杂性.
- L-ornithine被确定为一种主要的代谢物,可以招募有益的微生物:Brevundimonas (YB12),Pantoea (YN26) 和 Stenotrophomonas (YN10).
- 这些被招募的微生物将疾病指数降低了高达67.6%.
- 布鲁文迪莫纳斯直接对抗Xoo;潘托亚和斯坦诺特罗霍蒙纳斯通过酸和莉酸途径增强了植物免疫力.
结论:
- 主体的代谢变化,特别是l-ornithine的产生,对于招募有益的植物圈微生物至关重要.
- 招募的微生物采用不同的策略,包括直接对抗和增强植物免疫反应,以对抗Xoo.
- 这项研究揭示了植物与微生物相互作用对抗疾病的新见解,为可持续农业提供了潜力.
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