细菌和考古社区分布和宇宙主义跨越物理化学多样化的温泉
Chanenath Sriaporn1, Kathleen A Campbell2, Martin J Van Kranendonk3
1School of Biological Sciences, The University of Auckland, Auckland, New Zealand.
ISME communications
|August 18, 2023
概括
多种温泉中的微生物群落是由温度和pH值所塑造的. 特定的细菌和古生物系,如热质体,显示广泛的流行和独特的代谢特征,使得在各种环境的殖民.
科学领域:
- 微生物生态学 微生物生态学
- 地质微生物学的生物.
- 环境微生物学 环境微生物学
背景情况:
- 陆地温泉拥有多样化的微生物,社区组成受到极端环境条件的影响.
- 显著的物理化学变异对细菌和古生物分布和种群结构的影响仍然不太清楚.
研究的目的:
- 调查热泉沉积物中的细菌和古生物的流行和丰富程度,涉及广泛的物理化学条件.
- 了解温度和pH值如何影响微生物群落组成,并确定主导各种温泉的关键血统.
主要方法:
- 来自新西兰陶波火山区的76个温泉沉积物样本的分析.
- 16S rRNA amplicon 测序以确定细菌和古物社区组成 (ASV).
- 超基因组分析以探索主导血统的代谢潜力.
主要成果:
- 社区的组成受到温度和pH值的强烈影响,其中蛋白质细菌,Euryarchaeota和Crenarchaeota占主导地位.
- 八种特定的考古和细菌ASV (热质类,硫类,中酸性类,酸性类) 非常普遍和丰富,占整个社区的44%.
- 甲基因组数据揭示了这些主导血统在各种温泉中的不同代谢能力 (硫,,代谢) 和人口结构.
结论:
- 某些细菌和古生物学家的血统具有适应性的人口结构和代谢潜力,使他们能够在广泛的温泉环境中殖民.
- 温度和pH值是塑造微生物群落的关键驱动因素,但特定的血统表现出了显著的弹性和适应性.
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