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Bacterial Community Structure and Diversity in the Aqueous Environment of Shihou Lake and its Relationship with Environmental Factors

文献类型： 外文期刊

作者： Deng, Ru 1 ; Chen, Xi 4 ; Qiu, Li-Ping 4 ; Chen, Jia-Zhang 4 ; Meng, Shun-Long 4 ;

作者机构： 1.Shanghai Ocean Univ, Natl Demonstrat Ctr Expt Fisheries Sci Educ, Shanghai 201306, Peoples R China

2.Shanghai Ocean Univ, Key Lab Freshwater Aquat Genet Resources, Minist Agr, Shanghai 201306, Peoples R China

3.Shanghai Ocean Univ, Ctr Res Environm Ecol & Fish Nutr, Minist Agr, Shanghai 201306, Peoples R China

4.Chinese Acad Fishery Sci CAFS, Freshwater Fisheries Res Ctr, Wuxi 214081, Jiangsu, Peoples R China

5.Chinese Acad Fishery Sci CAFS, Lab Qual & Safety Risk Assessment Aquat Prod Envi, Minist Agr, Wuxi 214081, Jiangsu, Peoples R China

6.Chinese Acad Fishery Sci CAFS, Key Lab Fishery Ecoenvironm Assessment & Resource, Wuxi 214081, Jiangsu, Peoples R China

关键词： Illumina MiSeq sequencing; Bacterial community; Environmental factors; Planktonic bacteria; Proteobacteria; Cyanobacteria

期刊名称：INDIAN JOURNAL OF MICROBIOLOGY （ 影响因子：2.461； 五年影响因子：2.259 ）

ISSN： 0046-8991

年卷期： 2021 年 61 卷 4 期

页码：

收录情况： SCI

摘要： Microorganisms are sensitive to changes in the external environment and are often used as indicators to monitor and reflect water quality. Using Illumina MiSeq sequencing, the characteristics of the microbial community in Shihou Lake water at different time points were analyzed and the key environmental factors affecting the bacterial community were identified. The microbial community diversity in Shihou Lake water was rich and showed significant differences over time. The main bacterial phyla were the Cyanobacteria, Proteobacteria, Actinobacteria, Verrucomicrobia, Bacteroidetes, Chloroflexi, Planctomycetes, Firmicutes, Chlorobi, WS6 and Saccharibacteria. The relative abundance of these major phyla in the sample accounted for 97.83%-99.07% of the total abundance; Cyanobacteria had the highest relative abundance, accounting for 13.07%-44.61% of the total, and the abundance of each dominant phylum was significantly different at different time points. The Shannon and Simpson indexes showed that the diversity of each month was as follows: August > October > July > September > November. The Chao1 and Ace indexes indicated that the order of richness was: November > October > July > August > September. Beta diversity analysis found significant differences in the samples from month to month. Environmental factors such as temperature, total nitrogen, chlorophyll-a, permanganate index, nitrite, pH and ammonia nitrogen had significant effects on microbial community structure.

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