DOI: 10.1016/j.watres.2017.11.029
Scopus记录号: 2-s2.0-85034435933
论文题名: Biofilms as a sink for antibiotic resistance genes (ARGs) in the Yangtze Estuary
作者: Guo X.-P. ; Yang Y. ; Lu D.-P. ; Niu Z.-S. ; Feng J.-N. ; Chen Y.-R. ; Tou F.-Y. ; Garner E. ; Xu J. ; Liu M. ; Hochella M.F. ; Jr.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 129 起始页码: 277
结束页码: 286
语种: 英语
英文关键词: Antibiotic resistance genes
; Biofilm
; Extracellular DNA
; Partitioning coefficients
; Yangtze estuary
Scopus关键词: Antibiotics
; DNA
; Enzyme activity
; Estuaries
; Genes
; Sediments
; Antibiotic resistance genes
; Antibiotic-resistant genes
; Estuarine environments
; Extracellular
; Microbial biomass carbon
; Occurrence and distribution
; Partitioning coefficients
; Yangtze Estuary
; Biofilms
; antibiotic agent
; DNA
; DNA 16S
; metal
; water
; antiinfective agent
; fresh water
; antibiotic resistance
; aquatic environment
; biofilm
; detection method
; DNA
; gene
; sediment
; antibiotic resistance gene
; aquatic environment
; Article
; biofilm
; China
; correlation analysis
; estuary
; gene
; microbial biomass
; priority journal
; sediment
; water sampling
; analysis
; antibiotic resistance
; bacterial gene
; genetics
; sediment
; water pollutant
; China
; Shanghai
; Yangtze Estuary
; Anti-Bacterial Agents
; Biofilms
; China
; Drug Resistance, Microbial
; Estuaries
; Fresh Water
; Genes, Bacterial
; Geologic Sediments
; Water Pollutants, Chemical
英文摘要: Biofilms are ubiquitous throughout aquatic environments and they are thought to promote the acquisition and dissemination of antibiotic resistant genes (ARGs). This study focused on the occurrence and distribution of five types of ARG in naturally-occurring biofilms, in comparison to associated sediment and water samples, from the Yangtze Estuary, which borders the meta-city of Shanghai, China. The detection frequency and abundances of most ARGs showed the following order: biofilm > sediment > water, which can be attributed to a high level of antibiotics and metals that can accelerate the generation and propagation of ARGs in biofilms. Most of ARG abundances were contributed by extracellular DNA (eDNA) in biofilm and sediment samples. ARGs (sul1, sul2, tetA and tetW) in eDNA were significantly correlated with TOC in both biofilm and sediment samples. Furthermore, both intracellular DNA-associated ARGs per gram of microbial biomass carbon (MBC) and eDNA-associated ARGs per gram of non-MBC and were higher in biofilms than sediments, and the partitioning coefficients of ARGs in eDNA between biofilm and water were higher than those between sediment and water. Our results provide new insight for evaluating the occurrence and abundance of ARGs in aquatic environments, confirming that biofilms are a significant sink for ARGs in the estuarine environment. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113071
Appears in Collections: 气候减缓与适应
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作者单位: Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographical Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China; State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China; Department of Civil and Environmental Engineering, Virginia Tech, 418 Durham Hall, Blacksburg, VA 24061, United States; Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, 15213, United States; The Center for NanoBioEarth, Department of Geosciences, Virginia Tech, Blacksburg, VA 24061, United States; Geosciences Group, Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, United States
Recommended Citation:
Guo X.-P.,Yang Y.,Lu D.-P.,et al. Biofilms as a sink for antibiotic resistance genes (ARGs) in the Yangtze Estuary[J]. Water Research,2018-01-01,129