肠道微生物群的可塑性和宿主抵抗力,作为对亚南极海海洋变暖的反应
Guillaume Schwob1,2, Mélanie Delleuze3,4,5, Sébastien Motreuil6
1Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Santiago, Chile. guillaume_schwob@hotmail.fr.
BMC biology
|November 19, 2025
概括
海Abatus cordatus对中期海洋变暖表现出耐受性. 它的肠道微生物群可塑性可能会增强对气候变化对海洋生态系统影响的弹性.
科学领域:
- 海洋生物学 海洋生物学
- 生态生态学 生态生态学
- 微生物学 微生物学
背景情况:
- 南极地区的海洋生态系统面临着气候变化威胁,特别是海洋温度上升.
- 地方性海 Abatus cordatus 具有有限的散播能力和潜在的狭窄的热.
- 微生物组介导的适应是对海洋变暖的潜在弹性机制.
研究的目的:
- 为了评估 Abatus cordatus 在中期海水变暖下生存的情况.
- 为了研究肠道微生物对A. cordatus. 变暖的反应.
- 为了比较热应激下肠道和沉积物微生物组的变化.
主要方法:
- 使用16S rRNA基因测序分析宿主存活率和肠道微生物组合.
- 阿巴图斯·科尔达斯 (Abatus cordatus) 被暴露在近期的温度场景中.
- 在实验性变暖下,肠道和沉积物微生物组进行了比较.
主要成果:
- 主体死亡率很低,与变暖强度无关,表明热耐受性.
- 肠道微生物群的多样性保持稳定,但组成发生了转变,增加了个体间的分歧.
- 沉积物微生物组更稳定,而特定的肠道细菌种群显示温度依赖的丰度变化.
结论:
- 阿巴图斯·科尔达斯 (Abatus cordatus) 对中期海洋变暖表现出耐受性.
- 肠道微生物群的可塑性是支持宿主对热应激的弹性的一个关键因素.
- 这突出了微生物群在海洋无脊椎动物适应气候变化的作用.
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