季节性塑造了两个对称的海的肠道微生物群组成
Ruber Rodríguez-Barreras1, Jaleniz Suárez-Pérez2, Filipa Godoy-Vitorino2
1Biology Dept., University of Puerto Rico at Bayamon, Bayamón, PR, United States of America.
PeerJ
|March 10, 2026
概括
季节性显著影响海肠道微生物群,宿主选择维持稳定的核心社区. 这突显了海洋无脊椎动物微生物组对环境变化的弹性.
科学领域:
- 海洋无脊椎动物生物学
- 微生物生态学 微生物生态学
- 基因组学就是基因组学.
背景情况:
- 肠道微生物群对于海洋无脊椎动物的健康至关重要,受宿主和环境的影响.
- 海是加勒比海珊瑚礁的关键食草动物,影响生态系统动态.
- 这项研究研究了两种相似的海鱼物种的肠道微生物群.
研究的目的:
- 为了在不同季节中比较Diadema antillarum和Echinometra lucunter的肠道微生物群.
- 识别核心微生物群组成部分及其稳定性.
- 了解宿主特征与肠道微生物群落环境因素之间的相互作用.
主要方法:
- 从夏季和冬季收集的海中16S rRNA基因测序肠道内容.
- 使用标准管道分析微生物多样性和社区结构.
- 两种相似物种之间的微生物组成和不同季节的微生物组成的比较.
主要成果:
- 肠道微生物群由Bacillota,Bacteroidota,Desulfobacterota和Pseudomonadota主导. 这种微生物群主要存在于肠道中.
- 在微生物群落中观察到显著的季节性聚类,冬季的α多样性更高.
- 核心微生物群分析揭示了像*Propionigenium*这样的稳定类型,这表明宿主驱动的选择.
结论:
- 季节性是这些海肠道微生物群变化的主要驱动因素.
- 宿主选择保留了一个保存的核心微生物群,确保功能稳定性.
- 海的微生物群体表现出生态可塑性和适应波动的珊瑚礁状况的弹性.
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