受到威胁的西部池乌的细菌群落可能会受到土地使用的影响
Alison White1, Madison Giannetto1, Lubna Mulla1
1Department of Natural Sciences and Mathematics, Dominican University of California, San Rafael, CA 94901, United States.
FEMS microbiology ecology
|November 11, 2023
概括
淡水的微生物群落因息地质量和位置而异. 贝和克洛亚克细菌不同,入侵物种与本地海共享微生物,影响城市生态.
科学领域:
- 微生物生态学 微生物生态学
- 类学 类学 类学 类学
- 环境科学 环境科学
背景情况:
- 作为半水生生物,淡水海对影响其微生物共生体的息地干扰很敏感.
- 了解与乌相关的微生物群落对于评估生态系统健康至关重要,特别是在城市化环境中.
研究的目的:
- 通过城市-农村梯度对西部池海 (Actinemys/Emys marmorata) 和红耳滑鼠 (Trachemys scripta elegans) 的贝和状细菌群体进行表征.
- 研究鱼微生物组中息地质量对细菌多样性和组成的影响.
- 探索土著和入侵物种之间的潜在微生物分散.
主要方法:
- 使用16S rRNA amplicon测序来分析细菌群落.
- 在旧金山湾区的八个地点从海的贝和中采集了样本.
- 使用α和β多样性指标来评估社区结构和变化.
主要成果:
- 在西部池海的贝和甲样本之间观察到显著的细菌分类学区别.
- 细菌群体表现出高度的物种/基因水平的变化,受地理位置的影响.
- 来自高质量的息地的海表现出明显的 (较差) 和 (更多样化的) 细菌群体.
- 西方池海和入侵性红耳滑鼠之间重叠的贝细菌群体表明微生物交换.
结论:
- 息地质量和位置认同是淡水乌细菌群落变异的重要驱动因素.
- 微生物群落在同一宿主物种内的贝和虫息地之间存在差异.
- 跨物种的微生物转移发生在原生和入侵的乌种群之间,突出显示在不断变化的环境中生态相互作用.
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