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DOI | 10.2166/wh.2014.057 |
Bacterial composition in a metropolitan drinking water distribution system utilizing different source waters | |
Gomez-Alvarez, Vicente1; Humrighouse, Ben W.2,3; Revetta, Randy P.1; Domingo, Jorge W. Santo1 | |
发表日期 | 2015 |
ISSN | 1477-8920 |
卷号 | 13期号:1页码:140-151 |
英文摘要 | We investigated the bacterial composition of water samples from two service areas within a drinking water distribution system (DWDS), each associated with a different primary source of water (groundwater, GW; surface water, SW) and different treatment process. Community analysis based on 16S rRNA gene clone libraries indicated that Actinobacteria (Mycobacterium spp.) and alpha-Proteobacteria represented nearly 43 and 38% of the total sequences, respectively. Sequences closely related to Legionella, Pseudomonas, and Vibrio spp. were also identified. In spite of the high number of sequences (71%) shared in both areas, multivariable analysis revealed significant differences between the GW and SW areas. While the dominant phylotypes where not significantly contributing in the ordination of samples, the populations associated with the core of phylotypes (1-10% in each sample) significantly contributed to the differences between both service areas. Diversity indices indicate that the microbial community inhabiting the SW area is more diverse and contains more distantly related species coexisting with local assemblages as compared with the GW area. The bacterial community structure of SW and GW service areas were dissimilar, suggesting that their respective source water and/or water quality parameters shaped by the treatment processes may contribute to the differences in community structure observed. |
英文关键词 | bacterial diversity;drinking water bacteria;16S rRNA gene sequencing |
语种 | 英语 |
WOS记录号 | WOS:000355183800014 |
来源期刊 | JOURNAL OF WATER AND HEALTH
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来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/59175 |
作者单位 | 1.US EPA, Cincinnati, OH 45268 USA; 2.Univ Cincinnati, Dept Civil & Environm Engn, Cincinnati, OH USA; 3.US Ctr Dis Control & Prevent, Atlanta, GA 30333 USA |
推荐引用方式 GB/T 7714 | Gomez-Alvarez, Vicente,Humrighouse, Ben W.,Revetta, Randy P.,et al. Bacterial composition in a metropolitan drinking water distribution system utilizing different source waters[J]. 美国环保署,2015,13(1):140-151. |
APA | Gomez-Alvarez, Vicente,Humrighouse, Ben W.,Revetta, Randy P.,&Domingo, Jorge W. Santo.(2015).Bacterial composition in a metropolitan drinking water distribution system utilizing different source waters.JOURNAL OF WATER AND HEALTH,13(1),140-151. |
MLA | Gomez-Alvarez, Vicente,et al."Bacterial composition in a metropolitan drinking water distribution system utilizing different source waters".JOURNAL OF WATER AND HEALTH 13.1(2015):140-151. |
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