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在Kuroshio扩展区的海底微生物群落的多样性和结构

Shanshan Zhao¹, Xin Hu¹, Haoshuai Li¹

¹Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education, Ocean University of China, Qingdao, Shandong Province, 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, Shandong Province, 266100, China.

Marine environmental research

|August 29, 2024

概括

库罗西奥延伸地区的微生物多样性随着海洋深度的增加而减少. 盐度和温度等环境因素在这个充满活力的北太平洋地区显著影响微生物社区结构.

科学领域:

海洋微生物学海洋微生物学
海洋学海洋学海洋学
环境科学环境科学

背景情况:

库罗西奥延伸 (KE) 是北太平洋的一个高度动态的地区,对海洋微生物的生存至关重要.
微生物群落的垂直变化和KE中的环境驱动因素仍然不太清楚.

研究的目的:

调查库罗西奥延伸地区微生物多样性,丰富性和社区结构的垂直变化.
确定影响这些垂直微生物社区转移的环境因素.

主要方法:

使用16S rRNA基因高通量测序来分析微生物群落.
从五个站点的12个水层收集了样本,从表面到底部.
使用非度量多维缩放 (NMDS) 分析来根据区域区分微生物群落.

主要成果:

微生物的多样性和丰富性随着海水深度的增加而显著下降.
与较深的区域相比,在优发性区域观察到不同的微生物群落.
蛋白质菌,细菌菌,细菌菌,Actinobacteriota和Crenarchaeota是占主导地位的类型,在各区域分布相似.
微生物的丰富性与盐度,密度,压力和温度有显著的相关性 (斯皮尔曼测试,p < 0.05).

结论:

海洋深度是塑造Kuroshio延伸的微生物多样性和结构的主要因素.
环境参数,如盐度,密度,压力和温度在构建海微生物群落方面发挥着重要作用.
这项研究提供了关于海洋微生物生态系统在一个关键海洋地区的垂直分层的关键见解.

关键词:

生物多样性生物多样性共同体的组成共同体的组成海洋的深度,海洋的深度.功能预测的功能预测.库罗西奥扩展区的扩展微生物微生物鱼类鱼类鱼类

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