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Species sorting during biofilm assembly by artificial substrates deployed in a cold seep system

机译：生物膜组装过程中的物种通过部署在冷渗流系统中的人工基质进行分选

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Studies focusing on biofilm assembly in deep-sea environments are rarely conducted. To examine the effects of substrate type on microbial community assembly, biofilms were developed on different substrates for different durations at two locations in the Red Sea: in a brine pool and in nearby bottom water (NBW) adjacent to the Thuwal cold seep II. The composition of the microbial communities in 51 biofilms and water samples were revealed by classification of pyrosequenced 16S rRNA gene amplicons. Together with the microscopic characteristics of the biofilms, the results indicate a stronger selection effect by the substrates on the microbial assembly in the brine pool compared with the NBW. Moreover, the selection effect by substrate type was stronger in the early stages compared with the later stages of the biofilm development. These results are consistent with the hypotheses proposed in the framework of species sorting theory, which states that the power of species sorting during microbial community assembly is dictated by habitat conditions, duration and the structure of the source community. Therefore, the results of this study shed light on the control strategy underlying biofilm-associated marine fouling and provide supporting evidence for ecological theories important for understanding the formation of deep-sea biofilms.
机译：很少进行针对深海环境中生物膜组装的研究。为了检查底物类型对微生物群落组装的影响，在红海的两个位置：盐水池和邻近Thuwal冷渗水II的附近底水（NBW）中，在不同底物上以不同的时间在不同的底物上形成了生物膜。通过焦磷酸测序的16S rRNA基因扩增子的分类揭示了51个生物膜和水样品中微生物群落的组成。与生物膜的微观特征一起，结果表明与NBW相比，底物对盐水池中微生物组件的选择作用更强。而且，与生物膜开发的后期相比，在早期阶段通过底物类型的选择效果更强。这些结果与物种分类理论框架中提出的假设一致，该假设指出，微生物群落组装过程中物种分类的能力取决于生境条件，持续时间和源群落的结构。因此，本研究结果阐明了与生物膜相关的海洋污染的基础控制策略，并为对理解深海生物膜形成具有重要意义的生态学理论提供了支持证据。

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