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沿河口连续的细菌和原生体群落的稳定性特征:多样性,组成和共发生网络

Jianming Wu¹, Lihua Niu², Yi Li²

¹College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China; Research Institute of Mulan Ecological River, Putian 351100, China.

Environmental research

|January 23, 2025

概括

河口中的微生物群体表现出不同的稳定性. 抗原群体比细菌群体不太稳定,特别是在河口水域,影响生态系统健康.

科学领域:

生态生态学生态生态学
微生物学微生物学
环境科学环境科学

背景情况:

河口生态系统面临着人类活动和自然力量的重大威胁.
了解跨分类学,息地和空间尺度的微生物社区稳定性至关重要,但有限.

研究的目的:

为了比较细菌和原生体社区在穆兰河口的水和沉积物的稳定性.
研究沿河口梯度社区稳定的空间变化.
探索观察到的稳定性特征背后的驱动机制.

主要方法:

在水和沉积物样本中对微生物群落 (细菌和原生体) 的比较分析.
使用alpha多样性,社区组成差异 (Bray-Curtis) 和网络强度来评估社区稳定性.
应用零模型和网络分析来推断组装过程.
使用部分最小平方路径建模来确定关键的环境驱动因素.

主要成果:

在水和沉积物中,Protistan群体的稳定性低于细菌群体.
河口水中的微生物群体与沉积物相比,其稳定性较低.
社区的稳定性在河口连续线上有所不同,其中细菌稳定性在中流域最低,蛋白质质稳定性在上流域最低.
变量选择,同质选择和强烈的积极相互作用被确定为导致上层和中层稳定性降低的关键因素.
总,总和溶解氧被确定为影响微生物社区稳定的重要环境驱动因素.

结论:

河口微生物群落在不同尺度上表现出复杂而多样化的稳定性模式.
了解这些稳定性动态对于有效的河口生态系统管理和保护至关重要.
营养水平和溶解氧气等环境因素在塑造微生物社区稳定性方面发挥着关键作用.

关键词:

组装机制的组装机制细菌细菌是一种细菌.河口的河口河口抗议主义者抗议主义者稳定的稳定性稳定的稳定性

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