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环境细菌增加了低温下水的种群增长
Máté Miklós1,2,3, Karolina Cseri4, Levente Laczkó4,5
1MTA-DE "Momentum" Ecology, Evolution and Developmental Biology Research Group, Department of Evolutionary Zoology, University of Debrecen, Debrecen, Hungary.
Frontiers in microbiology
|December 13, 2023
概括
环境微生物在低温下促进水种群的增长. 杀菌水减少了生长,改变了微生物群,并引入了潜在的病原体,即使没有适应性免疫,也突出了微生物的好处.
科学领域:
- 生态生态学 生态生态学
- 微生物学 微生物学
- 无脊椎动物生物学 脊椎动物生物学
背景情况:
- 多细胞生物与各种微生物相互作用,包括有益的,中性的和有害的微生物.
- 对微生物的环境暴露对脊椎动物的免疫成熟至关重要,但对无脊椎动物的作用不太了解.
- 无脊椎动物缺乏适应性免疫系统,这引发了关于它们对环境微生物群落的依赖的问题.
研究的目的:
- 调查环境微生物群对淡水鱼Hydra oligactis种群增长的影响.
- 为了确定环境微生物是否为缺乏适应性免疫力的无脊椎动物提供好处.
- 分析微生物群体组成的变化,以应对灭菌和温度.
主要方法:
- 现场采集的Hydra oligactis是在8°C和12°C的正常和自封式湖水中培养的.
- 人口增长率在不同的条件下进行了监测.
- 16S rRNA基因测序用于在治疗前和治疗后分析聚体和周围水中的微生物群落.
主要成果:
- 灭菌水中的多体显示出减少了种群增长,特别是在8°C.
- 自水被不同的细菌群体重新殖民,包括潜在的病原体,如Pseudomonas.
- 通过绝育,多体内的微生物群组成发生了变化,其中一些血统减少,而另一些则增加.
- 共生生物多核菌的丰富性与水种群大小有积极的相关性.
结论:
- 环境微生物群可以在低温下增强水族群生长率.
- 这些发现表明,即使没有适应性免疫系统,环境微生物也能为动物带来好处.
- 主体和环境微生物之间的温度依赖的相互作用对无脊椎动物的健康有意义.
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