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微生物枯竭与较慢的Cnidarian再生有关

Jeric Da-Anoy¹, Kyle Toyama¹, Oliwia Jasnos¹

¹Department of Biology, Boston University, Boston, Massachusetts, USA 02215.

Integrative and comparative biology

|March 11, 2025

概括

使用抗生素破坏海中的微生物组,减缓了共生和非共生物种的再生速度,并减少了触手的生长. 这些发现凸显了宿主微生物群相互作用在类动物组织修复中的关键作用.

科学领域:

海洋生物学海洋生物学
微生物学微生物学
再生生物学再生生物学

背景情况:

鸟类微生物组对于生理和发育至关重要.
这些微生物群落对类动物组织再生的影响在很大程度上仍未被探索.

研究的目的:

调查抗生素诱导的微生物组破坏对两种鸟类物种 (Nematostella vectensis和Exaiptasia diaphana) 的再生能力的影响.
评估宿主微生物群相互作用在鸟类再生过程中的功能作用.

主要方法:

在无菌或注入抗生素的人造海水中对两截的海 (Nematostella和Aiptasia) 进行抗生素治疗七天.
每天监测再生,最后测量触手数量和长度.
使用16S rRNA V4区域metabarcoding进行微生物社区分析.

主要成果:

抗生素暴露导致了微生物组的破坏,这两种物种的微生物负载减少和社区组成改变的特点.
与Aiptasia相比,Nematostella在微生物多样性和社区转移方面表现出更明显的减少.
微生物组的破坏与显著较慢的再生率和的发育下降相关,在两种鸟类模型中.

结论:

主体微生物群的相互作用对于保持共生和非共生鱼的再生过程至关重要.
这些发现强调了虫-微生物组动态在应对环境压力因素方面的重要性.
了解这些相互作用对于预测鱼在不断变化的海洋环境中的弹性至关重要.

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