Being immersed in seawater for a few days, microorganisms will adhere to the surface of different materials and form biofilms. After being immersed in seawater for 1 week, high-throughput sequencing method was used to analyze the bacterial community structure of the biofilms on the surface of microbeads with different materials including steel, SiO2, and polyvinyl chloride (PVC). Operational taxonomic unit clustering results showed that some differences existed in the bacterial communities attached to the surface of different microbeads. Each microbead made by different material had its unique bacterial community. The heatmap indicated that the dominant genera on the surface of different microbeads were different from each other. Quantitative analysis showed that the relative abundance of dominant genera were different among different types of microbeads. Beta diversity analysis and principal component analysis showed that difference in the bacterial community on surface of steel-bead and PVC-bead was the most significant.

中文翻译：

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沿海水域微塑料生物膜的独特细菌群落。

在海水中浸泡几天，微生物就会附着在不同材料的表面，形成生物膜。在海水中浸泡1周后，采用高通量测序方法对钢、SiO2、聚氯乙烯(PVC)等不同材料的微珠表面生物膜的细菌群落结构进行分析。操作分类单元聚类结果表明，附着在不同微珠表面的细菌群落存在一些差异。由不同材料制成的每个微珠都有其独特的细菌群落。热图表明不同微珠表面的优势属互不相同。定量分析表明，不同类型微珠的优势属相对丰度不同。Beta多样性分析和主成分分析表明，钢珠和PVC珠表面的细菌群落差异最为显着。