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在水生微生态系统中,细菌群体的宿主介导的利基构建

Aldo A Arellano^1,2, Journey L Prack¹, Kerri L Coon¹

¹Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, United States.

The ISME journal

|October 17, 2025

概括

主体动物通过引入有益的微生物来积极塑造他们的环境,以造福他们的后代. 这种宿主介导的利基结构支持微生物群落,增强宿主健康和生存.

科学领域:

微生物生态学微生物生态学
进化生物学是进化的生物学.
宿主-微生物相互作用

背景情况:

微生物对于生态系统的恒温至关重要,但与宿主相关的微生物群落和环境微生物群落之间的联系往往被忽视.
主体会影响它们的共生体,但一个关键的机制是改变外部环境以减少微生物的招募.

研究的目的:

通过检查植物蚊子 (Wyeomyia smithii) 如何操纵环境微生物群落来研究宿主驱动的利基结构.
测试宿主积极塑造微生物群落以增强后代在不同发育阶段和不同环境复杂性的健身的假设.

主要方法:

使用无菌 (无菌) 和选择性重新殖民 (无菌) 蚊子进行的安普利康序列和微生物群操纵实验.
进行了单个雌性产卵测定和幼虫密度实验,使用现场衍生微生物群体.
根据暴露于父母和环境衍生的微生物群的情况,评估后代的健康状况.

主要成果:

已证明可以重复对成年蚊子注射无菌水,用有益的细菌支持幼虫发育.
在高幼虫密度条件下观察到特定环境和宿主相关细菌的选择,与增加幼虫健康相关.
表明,由同类动物进行的先前微生物条件增强了虫幼虫的健康状况.

结论:

提供了Wyeomyia smithii中宿主介导的利基结构的证据,其中宿主喜欢有益的环境微生物.
确定了Actinobacteriota和Acetobacteraceae作为细菌种群,与增强的蚊子幼虫适应性一致相关.
强调了由宿主驱动的环境修饰在促进有利于宿主生存的微生物群落的重要性.

关键词:

主体 - 微生物共生共生微生物生态学微生物生态学蚊子蚊子蚊子利基建设利基建设利基建设盆栽植物盆栽植物暂时的微生物群

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