DOI: 10.1016/j.watres.2018.02.031
Scopus记录号: 2-s2.0-85042718239
论文题名: Influence of secondary water supply systems on microbial community structure and opportunistic pathogen gene markers
作者: Li H. ; Li S. ; Tang W. ; Yang Y. ; Zhao J. ; Xia S. ; Zhang W. ; Wang H.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 136 起始页码: 160
结束页码: 168
语种: 英语
英文关键词: Building plumbing
; Illumina sequencing
; Opportunistic pathogens
; q-PCR
; Secondary water supply systems
Scopus关键词: Buildings
; Genes
; Microorganisms
; Potable water
; RNA
; Water supply
; Water supply systems
; Water tanks
; Distribution systems
; Illumina
; Microbial communities
; Microbial community structures
; q-PCR
; Residential building
; Water storage tanks
; Water transportation
; Pathogens
; bacterial RNA
; disinfectant agent
; drinking water
; RNA 16S
; bacterial protein
; biomarker
; colonization
; community structure
; distribution system
; gene
; genetic analysis
; growth
; microbial community
; pathogen
; polymerase chain reaction
; water supply
; Acanthamoeba
; Article
; bacterial gene
; Hartmannella
; Legionella
; Legionella pneumomhila
; marker gene
; microbial colonization
; microbial community
; microbial growth
; microflora
; nonhuman
; priority journal
; secondary water supply system
; temperature
; Vermamoeba vermiformis
; water retention
; water supply
; bacterium
; biodiversity
; chemistry
; classification
; genetics
; isolation and purification
; metabolism
; microbiology
; Acanthamoeba
; Bacteria (microorganisms)
; Legionella
; Bacteria
; Bacterial Proteins
; Biodiversity
; Disinfectants
; Drinking Water
; RNA, Ribosomal, 16S
; Water Microbiology
; Water Supply
英文摘要: Secondary water supply systems (SWSSs) refer to the in-building infrastructures (e.g., water storage tanks) used to supply water pressure beyond the main distribution systems. The purpose of this study was to investigate the influence of SWSSs on microbial community structure and the occurrence of opportunistic pathogens, the latter of which are an emerging public health concern. Higher numbers of bacterial 16S rRNA genes, Legionella and mycobacterial gene markers were found in public building taps served by SWSSs relative to the mains, regardless of the flushing practice (P < 0.05). In residential buildings, genes of L. pneumomhila, Acanthamoeba and Vermamoeba vermiformis were primarily detected in tanks and taps compared to the mains. Long water retention time, warm temperature and loss of disinfectant residuals promoted microbial growth and colonization of potential pathogens in SWSSs. Varied levels of microbial community shifts were found in different types of SWSSs during water transportation from the distribution main to taps, highlighting the critical role of SWSSs in shaping the drinking water microbiota. Overall, the results provided insight to factors that might aid in controlling pathogen proliferation in real-world water systems using SWSSs. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112855
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China; Department of Thoracic Surgery, Tongji University Shanghai Pulmonary Hospital, Shanghai, 200433, China
Recommended Citation:
Li H.,Li S.,Tang W.,et al. Influence of secondary water supply systems on microbial community structure and opportunistic pathogen gene markers[J]. Water Research,2018-01-01,136