根球微生物群落结构中高引发的变化可以调节对大米爆发的疾病易感性
Mehwish Roy1, Gnanendra Shanmugam1, Suvin Park1
1Department of Biotechnology, Yeungnam University, Gyeongsan, 38541, Gyeongbuk, Republic of Korea.
Environmental microbiome
|February 14, 2026
概括
大米中过量的 (N) 通过改变树根球微生物群,增加了对Magnaporthe oryzae的易感性. 这种微生物组的转变抑制了植物的防御,产生了促进疾病的持久效应.
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
- 农业学是一种农业学.
背景情况:
- 诱导敏感性 (NIS) 在大米中,其特点是增加了对过多的Magnaporthe oryzae的脆弱性,缺乏机械理解.
- 根球微生物组在NIS中介的作用之前尚未确定.
研究的目的:
- 阐明过多的,树根球微生物群和引起的米敏感性之间的机械联系.
- 为了研究高含量如何影响大米根球微生物组的组成和功能.
- 为了确定根球微生物群是否调解防御基因抑制和疾病易感性.
主要方法:
- 利用一种实验系统,将效应与植物生长脱.
- 在不同气条件和病原体感染下,分析了水根球中的细菌和真菌社区组成.
- 执行微生物群落的功能分析和网络分析.
- 进行了微生物组移植实验,从高N,感染的捐赠者到标准N接受者.
主要成果:
- 高含量显著改变了树根球的细菌和真菌群体,抑制了像OsPAL06和OsPR10b这样的防御基因.
- 功能分析表明,在高的环境下,酸盐降解途径的丰富.
- 处理和病原体感染相互作用,影响树根球社区组成,减少微生物连接和关键类型.
- 从高N,感染的捐赠者移植的微生物组复制了NIS,并抑制了接受者的防御基因表达.
结论:
- 过多的会促进树根球微生物组的配置,这些微生物具有免疫调节潜力,在营养系统之外持续存在.
- 根球微生物组是引起的米敏感性的关键决定因素.
- 这些发现支持开发微生物组信息,营养意识的策略,用于在米种植中的疾病管理.
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