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Xiao Z, Qin Y, Han L, Liu Y, Wang Z, Huang Y, Ma Y, Zou Y. Effects of wastewater treatment plant effluent on microbial risks of pathogens and their antibiotic resistance in the receiving river. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123461. [PMID: 38286261 DOI: 10.1016/j.envpol.2024.123461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/17/2024] [Accepted: 01/26/2024] [Indexed: 01/31/2024]
Abstract
The increase in effluent discharge from wastewater treatment plants (WWTPs) into urban rivers has raised concerns about the potential effects on pathogen risks. This study utilized metagenomic sequencing combined with flow cytometry to analyze pathogen concentrations and antibiotic resistance in a typical effluent-receiving river. Quantitative microbial risk assessment (QMRA) was employed to assess the microbial risks of pathogens. The results indicated obvious spatial-temporal differences (i.e., summer vs. winter and effluent vs. river) in microbial composition. Microcystis emerged as a crucial species contributing to these variations. Pathogen concentrations were found to be higher in the river than in the effluent, with the winter exhibiting higher concentrations compared to the summer. The effluent discharge slightly increased the pathogen concentrations in the river in summer but dramatically reduced them in winter. The combined effects of cyanobacterial bloom and high temperature were considered key factors suppressing pathogen concentrations in summer. Moreover, the prevalence of antibiotic resistance of pathogens in the river was inferior to that in the effluent, with higher levels in winter than in summer. Three high-concentration pathogens (Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa) were selected for QMRA. The results showed that the risks of pathogens exceeded the recommended threshold value. Escherichia coli posed the highest risks. And the fishing scenario posed significantly higher risks than the walking scenario. Importantly, the effluent discharge helped reduce the microbial risks in the receiving river in winter. The study contributes to the management and decision-making regarding microbial risks in the effluent-receiving river.
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Affiliation(s)
- Zijian Xiao
- The National Key Laboratory of Water Disaster Prevention, Yangtze Institute for Conservation and Development, Hohai University, Nanjing, 210098, PR China; Dayu College, Hohai University, Nanjing, 210098, PR China
| | - Yuanyuan Qin
- Dayu College, Hohai University, Nanjing, 210098, PR China
| | - Li Han
- Dayu College, Hohai University, Nanjing, 210098, PR China
| | - Yifan Liu
- Department of Computer Science and Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Ziyi Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Yanping Huang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Yujing Ma
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China
| | - Yina Zou
- The National Key Laboratory of Water Disaster Prevention, Yangtze Institute for Conservation and Development, Hohai University, Nanjing, 210098, PR China.
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2
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Shindoh S, Kadoya A, Kanechi R, Watanabe K, Suzuki S. Marine bacteria harbor the sulfonamide resistance gene sul4 without mobile genetic elements. Front Microbiol 2023; 14:1230548. [PMID: 37779713 PMCID: PMC10539471 DOI: 10.3389/fmicb.2023.1230548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/31/2023] [Indexed: 10/03/2023] Open
Abstract
Marine bacteria are possible reservoirs of antibiotic-resistance genes (ARGs) originating not only from clinical and terrestrial hot spots but also from the marine environment. We report here for the first time a higher rate of the sulfonamide-resistance gene sul4 in marine bacterial isolates compared with other sul genes. Among four sulfonamide-resistance genes (sul1, sul2, sul3, and sul4), sul4 was most abundant (45%) in 74 sulfonamide-resistant marine isolates by PCR screening. The order of abundance was sul4 (33 isolates) >sul2 (6 isolates) >sul3 (5 isolates) >sul1 (1 isolate). Whole-genome sequencing of 23 isolates of sul4-expressing α- and γ-proteobacteria and bacilli revealed that sul4 was not accompanied by known mobile genetic elements. This suggests that sul4 in these marine isolates is clonally transferred and not horizontally transferable. Folate metabolism genes formed a cluster with sul4, suggesting that the cluster area plays a role in folate metabolism, at which sul4 functions as a dihydropteroate synthase. Thus, sul4 might be expressed in marine species and function in folate synthesis, but it is not a transferable ARG.
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Affiliation(s)
- Suzune Shindoh
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Japan
| | - Aya Kadoya
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Japan
| | - Reo Kanechi
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Japan
| | - Kozo Watanabe
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Japan
- Graduate School of Science and Engineering, Ehime University, Matsuyama, Japan
| | - Satoru Suzuki
- Graduate School of Science and Engineering, Ehime University, Matsuyama, Japan
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3
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Smith P, Le Devendec L, Jouy E, Larvor E, Le Breton A, Picon-Camacho S, Zrnčić S, Zupičić IG, Oraić D, Karataş S, Verner-Jeffreys D, Joseph AW, Light E, Essen-Zandbergen AV, van Gelderen B, Voorbergen-Laarman M, Haenen OLM, Veldman KT, Madsen L, Mouritsen KK, Smith Svanevik C, Håkonsholm F, Vela AI, García M, Florio D, Fioravanti M, Cortinovis L, Pretto T, Manfrin A, Baron S. Epidemiological cut-off values for Vibrio anguillarum MIC and disc diffusion data generated by standardised methods. DISEASES OF AQUATIC ORGANISMS 2023; 155:109-123. [PMID: 37650482 DOI: 10.3354/dao03745] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
This work aims to generate the data needed to set epidemiological cut-off values for minimum inhibitory concentration (MIC) and disc-diffusion zone measurements of Vibrio anguillarum. A total of 261 unique isolates were tested, applying standard methods specifying incubation at 28°C for 24-28 h. Aggregated MIC distributions for a total of 247 isolates were determined in 9 laboratories for 11 agents. Data aggregations of the disc zone for the 10 agents analysed contained between 157 and 218 observations made by 4 to 7 laboratories. Acceptable ranges for quality control (QC) reference strains were available for 7 agents and the related multi-laboratory aggregated data were censored, excluding the data of a laboratory that failed to meet QC requirements. Statistical methods were applied to calculate epidemiological cut-off values. Cut-off values for MIC data were calculated for florfenicol (≤1 µg ml-1), gentamicin (≤4 µg ml-1), oxytetracycline (≤0.25 µg ml-1) and trimethoprim/sulfamethoxazole (≤0.125/2.38 µg ml-1). The cut-off values for disc zone data were calculated for enrofloxacin (≥29 mm), florfenicol (≥27 mm), gentamicin (≥19 mm), oxolinic acid (≥24 mm), oxytetracycline (≥24 mm) and trimethoprim/sulfamethoxazole (≥26 mm). MIC and disc-diffusion zone data for the other agents where not supported by QC, thus yielding only provisional cut-off values (meropenem, ceftazidime). Regardless of whether QC is available, some of the aggregated MIC distributions (enrofloxacin, oxolinic acid), disc zone (sulfamethoxazole), and MIC and disc-diffusion distributions (ampicillin, chloramphenicol) did not meet the statistical requirements. The data produced will be submitted to the Clinical Laboratory Standards Institute for their consideration in setting international consensus epidemiological cut-off values.
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Affiliation(s)
- Peter Smith
- School of Natural Science, University of Galway, Galway H91 TK33, Ireland
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4
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Adenaya A, Berger M, Brinkhoff T, Ribas-Ribas M, Wurl O. Usage of antibiotics in aquaculture and the impact on coastal waters. MARINE POLLUTION BULLETIN 2023; 188:114645. [PMID: 36724669 DOI: 10.1016/j.marpolbul.2023.114645] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 01/15/2023] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
For decades, coastal marine ecosystems have been threatened by a wide range of anthropogenic pollutants. Recently, there has been increasing concern about the accumulation and impacts of antibiotic compounds on marine ecosystems. However, information regarding the accumulation of antibiotics and the impacts they may have on microbial communities in coastal water bodies and on human health is sparse in literature. Antibiotics from aquacultures are constantly discharged into marine environments via rivers. Large rivers transport tons of antibiotics every year into coastal waters, e.g., 12 tons of sulfonamide by the river Mekong. Here, we discuss a potential influence of such imported antibiotics on bacterial communities in coastal waters. Potential accumulation of antibiotics in the uppermost surface layer of aquatic ecosystems, the so-called sea surface microlayer (SML), is of interest. Because of the ability of the SML to accumulate anthropogenic pollutants, it may serve as a pool for antibiotics and correspondingly also for resistant organisms. Also, due to its biofilm-like structure, the SML could serve as a hotspot for horizontal gene transfer, speeding up the spread of antibiotic resistant strains to encompassing marine environments. The emergence of antibiotic resistant bacteria is a global threat and scientists projected that it could pave the way for the next pandemic that could ravage the world in the next decades. For this reason, it is time to focus research on understanding and minimizing the impact of antibiotics on the sustainability of coastal waters and on the health of humans who depend on coastal resources for food and recreational purposes. Also, knowledge about antibiotics in the SML is necessary to understand the effects they are likely to have on bacterial abundance, diversity, and metabolic activities in coastal water bodies.
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Affiliation(s)
- Adenike Adenaya
- Center for Marine Sensors, Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Wilhelmshaven, Germany; Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Oldenburg, Germany.
| | - Martine Berger
- Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Oldenburg, Germany
| | - Thorsten Brinkhoff
- Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Oldenburg, Germany
| | - Mariana Ribas-Ribas
- Center for Marine Sensors, Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Wilhelmshaven, Germany
| | - Oliver Wurl
- Center for Marine Sensors, Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Wilhelmshaven, Germany.
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5
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Lopes ES, Parente CET, Picão RC, Seldin L. Irrigation Ponds as Sources of Antimicrobial-Resistant Bacteria in Agricultural Areas with Intensive Use of Poultry Litter. Antibiotics (Basel) 2022; 11:1650. [PMID: 36421294 PMCID: PMC9686582 DOI: 10.3390/antibiotics11111650] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/03/2022] [Accepted: 11/15/2022] [Indexed: 10/17/2023] Open
Abstract
Poultry litter is widely used worldwide as an organic fertilizer in agriculture. However, poultry litter may contain high concentrations of antibiotics and/or antimicrobial-resistant bacteria (ARB), which can be mobilized through soil erosion to water bodies, contributing to the spread of antimicrobial resistance genes (ARGs) in the environment. To better comprehend this kind of mobilization, the bacterial communities of four ponds used for irrigation in agricultural and poultry production areas were determined in two periods of the year: at the beginning (low volume of rainfall) and at the end of the rainy season (high volume of rainfall). 16S rRNA gene sequencing revealed not only significantly different bacterial community structures and compositions among the four ponds but also between the samplings. When the DNA obtained from the water samples was PCR amplified using primers for ARGs, those encoding integrases (intI1) and resistance to sulfonamides (sul1 and sul2) and β-lactams (blaGES, blaTEM and blaSHV) were detected in three ponds. Moreover, bacterial strains were isolated from CHROMagar plates supplemented with sulfamethoxazole, ceftriaxone or ciprofloxacin and identified as belonging to clinically important Enterobacteriaceae. The results presented here indicate a potential risk of spreading ARB through water resources in agricultural areas with extensive fertilization with poultry litter.
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Affiliation(s)
- Eliene S. Lopes
- Laboratório de Genética Microbiana, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil
| | - Cláudio E. T. Parente
- Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil
| | - Renata C. Picão
- Laboratório de Investigação em Microbiologia Médica, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil
| | - Lucy Seldin
- Laboratório de Genética Microbiana, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil
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6
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Sun G, Zhang Q, Dong Z, Dong D, Fang H, Wang C, Dong Y, Wu J, Tan X, Zhu P, Wan Y. Antibiotic resistant bacteria: A bibliometric review of literature. Front Public Health 2022; 10:1002015. [PMID: 36466520 PMCID: PMC9713414 DOI: 10.3389/fpubh.2022.1002015] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 10/20/2022] [Indexed: 11/18/2022] Open
Abstract
Antibiotic-resistant bacteria (ARB) are a serious threat to the health of people and the ecological environment. With this problem becoming more and more serious, more countries made research on the ARB, and the research number has been sharply increased particularly over the past decade. Therefore, it is quite necessary to globally retrace relevant researches on the ARB published from 2010 to 2020. This will help researchers to understand the current research situation, research trends and research hotspots in this field. This paper uses bibliometrics to examine publications in the field of ARB from 2010 to 2020 that were retrieved from the Web of Science (WOS). Our study performed a statistical analysis of the countries, institutions, journals, authors, research areas, author keywords, Essential Science Indicators (ESI) highly cited papers, and ESI hotspots papers to provide an overview of the ARB field as well as research trends, research hotspots, and future research directions in the field. The results showed that the number of related studies is increasing year by year; the USA is most published in the field of ARB; China is the most active in this field in the recent years; the Chinese Acad Sci published the most articles; Sci. Total Environ. published the greatest number of articles; CM Manaia has the most contributions; Environmental Sciences and Ecology is the most popular research area; and "antibiotic resistance," "antibiotics," and "antibiotic resistance genes" were the most frequently occurring author keywords. A citation analysis showed that aquatic environment-related antibiotic resistance is a key research area in this field, while antimicrobial nanomaterial-related research is a recent popular topic.
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Affiliation(s)
- Guojun Sun
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Qian Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Zuojun Dong
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Dashun Dong
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Hui Fang
- Institute of Information Resource, Zhejiang University of Technology, Hangzhou, China
| | - Chaojun Wang
- Hangzhou Aeronautical Sanatorium for Special Service of Chinese Air Force, Hangzhou, China
| | - Yichen Dong
- Department of Chinese Medicine, Macau University of Science and Technology, Taipa, Macau SAR, China
| | - Jiezhou Wu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Xuanzhe Tan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Peiyao Zhu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Yuehua Wan
- Institute of Information Resource, Zhejiang University of Technology, Hangzhou, China
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7
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Sugimoto Y, Kadoya A, Suzuki S. An Integrative and Conjugative Element (ICE) Found in Shewanella halifaxensis Isolated from Marine Fish Intestine May Connect Genetic Materials between Human and Marine Environments. Microbes Environ 2022; 37. [PMID: 36058879 PMCID: PMC9530723 DOI: 10.1264/jsme2.me22038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Integrative and conjugative elements (ICEs) play a role in the horizontal transfer of antibiotic resistance genes (ARGs). We herein report an ICE from Shewanella halifaxensis isolated from fish intestine with a similar structure to both a clinical bacterial ICE and marine bacterial plasmid. The ICE was designated ICEShaJpn1, a member of the SXT/R391 family of ICEs (SRIs). ICEShaJpn1 has a common core structure with SRIs of clinical and fish origins and an ARG cassette with the pAQU1 plasmid of Photobacterium damselae subsp. damselae, suggesting that the common core of SRIs is widely distributed and ARG cassettes are collected from regional bacteria.
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Affiliation(s)
- Yuta Sugimoto
- Center for Marine Environmental Studies, Ehime University
| | - Aya Kadoya
- Center for Marine Environmental Studies, Ehime University
| | - Satoru Suzuki
- Center for Marine Environmental Studies, Ehime University.,Graduate School of Science and Engineering, Ehime University
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8
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Lau SH, Hsu JT, Chen YJ, Li ZF, Chao WL, Yeh SL, Ying C. Sub-lethal concentration of sulfamethoxazole affects the growth performance of milkfish (Chanos chanos), the microbial composition of antibiotic-resistant bacteria and the prevalence of sulfonamide-resistance genes in mariculture. MARINE POLLUTION BULLETIN 2022; 182:113989. [PMID: 35939929 DOI: 10.1016/j.marpolbul.2022.113989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/19/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
To investigate the impacts of sub-lethal concentrations of antibiotic agents in mariculture, culturable approach and DNA based detection were employed to isolate and analyse resistant bacteria and resistant genes in this study. Milkfish (Chanos chanos), the target rearing animal was exposed to sulfamethoxazole (SMX; 2 mg/L) for 8 weeks and resulted in reduced survival rate and weight gain to 61.9 % and 28.4 %, respectively compared to control milkfish (p < 0.001). The composition of SMX-resistant bacteria isolated from the culture water and the gastrointestinal tracts of milkfish underwent changes in response to SMX treatment with a reduced diversity. The prevalence of SMX resistant genes sul in bacterial isolates was elevated from 2.8 % of control to 100 % of SMX-administrated water. Exposure to SMX at a sub-lethal dosage enhanced the prevalence of resistance genes sul1 and sul2 in resistant bacteria, thus implying high frequency of resistance dissemination in the marine environment and surrounding ecosystems.
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Affiliation(s)
- Sai Hung Lau
- Department of Microbiology, Soochow University, Taipei, Taiwan
| | - Jih-Tay Hsu
- Department of Animal Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Yu-Jie Chen
- Department of Microbiology, Soochow University, Taipei, Taiwan
| | - Ze-Fong Li
- Department of Microbiology, Soochow University, Taipei, Taiwan
| | - Wei-Liang Chao
- Department of Microbiology, Soochow University, Taipei, Taiwan
| | - Shinn-Lih Yeh
- Mariculture Research Centre, Council of Agriculture, Tainan City, Taiwan
| | - Chingwen Ying
- Department of Microbiology, Soochow University, Taipei, Taiwan.
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9
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Kumarage PM, De Silva LADS, Heo GJ. Aquatic environments: A Potential Source of Antimicrobial-Resistant Vibrio spp. J Appl Microbiol 2022; 133:2267-2279. [PMID: 35797342 DOI: 10.1111/jam.15702] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 06/22/2022] [Accepted: 07/01/2022] [Indexed: 11/29/2022]
Abstract
Vibrio spp. are associated with water and seafood-related outbreaks worldwide. They are naturally present in aquatic environments such as seawater, brackish water and freshwater environments. These aquatic environments serve as the main reservoirs of antimicrobial-resistant genes and promote the transfer of antimicrobial-resistant bacterial species to aquatic animals and humans through the aquatic food chain. Vibrio spp. are known as etiological agents of cholera and non-cholera Vibrio infections in humans and animals. Antimicrobial-resistant Vibrio species have become a huge threat in regard to treating Vibrio infections in aquaculture and public health. Most of the Vibrio spp. possess resistance towards the commonly used antimicrobials, including β-lactams, aminoglycosides, tetracyclines, sulfonamides, quinolones and macrolides. The aim of this review is to summarize the antimicrobial resistance properties of Vibrio spp. isolated from aquatic environments to provide awareness about potential health risks related to Vibrio infections in aquaculture and public health.
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Affiliation(s)
- P M Kumarage
- Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea
| | - L A D S De Silva
- Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea
| | - Gang-Joon Heo
- Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea
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10
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Mutuku C, Gazdag Z, Melegh S. Occurrence of antibiotics and bacterial resistance genes in wastewater: resistance mechanisms and antimicrobial resistance control approaches. World J Microbiol Biotechnol 2022; 38:152. [PMID: 35781751 PMCID: PMC9250919 DOI: 10.1007/s11274-022-03334-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 06/10/2022] [Indexed: 12/14/2022]
Abstract
Antimicrobial pharmaceuticals are classified as emergent micropollutants of concern, implying that even at low concentrations, long-term exposure to the environment can have significant eco-toxicological effects. There is a lack of a standardized regulatory framework governing the permissible antibiotic content for monitoring environmental water quality standards. Therefore, indiscriminate discharge of antimicrobials at potentially active concentrations into urban wastewater treatment facilities is rampant. Antimicrobials may exert selective pressure on bacteria, leading to resistance development and eventual health consequences. The emergence of clinically important multiple antibiotic-resistant bacteria in untreated hospital effluents and wastewater treatment plants (WWTPs) has been linked to the continuous exposure of bacteria to antimicrobials. The levels of environmental exposure to antibiotics and their correlation to the evolution and spread of resistant bacteria need to be elucidated to help in the formulation of mitigation measures. This review explores frequently detected antimicrobials in wastewater and gives a comprehensive coverage of bacterial resistance mechanisms to different antibiotic classes through the expression of a wide variety of antibiotic resistance genes either inherent and/or exchanged among bacteria or acquired from the reservoir of antibiotic resistance genes (ARGs) in wastewater systems. To complement the removal of antibiotics and ARGs from WWTPs, upscaling the implementation of prospective interventions such as vaccines, phage therapy, and natural compounds as alternatives to widespread antibiotic use provides a multifaceted approach to minimize the spread of antimicrobial resistance.
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Affiliation(s)
- Christopher Mutuku
- Department of General and Environmental Microbiology, Faculty of Sciences, University of Pécs, Ifjúság u. 6, Pecs, 7624, Hungary.
| | - Zoltan Gazdag
- Department of General and Environmental Microbiology, Faculty of Sciences, University of Pécs, Ifjúság u. 6, Pecs, 7624, Hungary
| | - Szilvia Melegh
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, 7622, Pecs, Hungary
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11
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Lien E, Sahu RS, Chen WL, Shih YH. Effective photocatalytic degradation of sulfamethoxazole using tunable CaCu 3Ti 4O 7 perovskite. CHEMOSPHERE 2022; 294:133744. [PMID: 35093422 DOI: 10.1016/j.chemosphere.2022.133744] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/18/2022] [Accepted: 01/23/2022] [Indexed: 06/14/2023]
Abstract
Sulfamethoxazole (SMX) is largely prescribed for bacterial infections but raises a major concern over generation of antibiotic-resistant bacteria in the environment. This study employed various perovskite-type photocatalysts, made by two-step synthesis procedures, to remove SMX. The as-synthesized CaCu3Ti4O7 (CCTO) perovskites were characterized by XRD, SEM-EDX, and DLS. Complete degradation (∼99%; kobs = 0.0279 min-1) of SMX was recorded under UV-light irradiation for 90 min in the presence of CCTO. SMX removal rate was investigated under various reaction conditions including pH, catalyst dose, electrolyte (NaCl and NaBr). The astonishing rate of SMX removal (kobs = 0.0614 min-1) was observed with the addition of 50 mM NaBr electrolytes in the reaction, which might imply that the appearance of halogen reactive species. CCTO-MS particles were aggregated in traces when the electrolytes concentration increases, resulting in reduced rate of SMX. The SMX concentration abatement and the formation of possible intermediates during photocatalytic reaction were analyzed. The upshot of this study reveals that the inexpensive and environmentally benign CCTO perovskite photocatalyst could be applied for the treatments of emerging contaminants in the future.
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Affiliation(s)
- En Lien
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 106, Taiwan, ROC
| | - Rama Shanker Sahu
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 106, Taiwan, ROC
| | - Wen-Ling Chen
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 106, Taiwan, ROC; Institute of Food Safety and Health, National Taiwan University, No. 17, Xuzhou Rd., Taipei, 100, Taiwan, ROC; Department of Public Health, National Taiwan University, No. 17, Xuzhou Rd., Taipei, 100, Taiwan, ROC
| | - Yang-Hsin Shih
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 106, Taiwan, ROC.
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12
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Macrolide resistance genes and mobile genetic elements in waterways from pig farms to the sea in Taiwan. J Glob Antimicrob Resist 2022; 29:360-370. [DOI: 10.1016/j.jgar.2022.04.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 11/20/2022] Open
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13
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Microbial Community Structure and Bacterial Lineages Associated with Sulfonamides Resistance in Anthropogenic Impacted Larut River. WATER 2022. [DOI: 10.3390/w14071018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Anthropogenic activities often contribute to antibiotic resistance in aquatic environments. Larut River Malaysia is polluted with both organic and inorganic pollutants from domestic and industrial wastewater that are probably treated inadequately. The river is characterized by high biochemical oxygen demand, chemical oxygen demand, total suspended solids, ammonia, and heavy metals. In our previous study, sulfonamides (SAs) and sulfonamide resistance genes (sul) were detected in the Larut River. Hence, in this study, we further examined the microbial community structure, diversity of sulfonamide-resistant bacteria (SARB), and their resistance genes. The study also aimed at identifying cultivable bacteria potential carriers of sul genes in the aquatic environment. Proteobacteria (22.4–66.0%), Firmicutes (0.8–41.6%), Bacteroidetes (2.0–29.4%), and Actinobacteria (5.5–27.9%) were the most dominant phyla in both the effluents and river waters. SARB isolated consisted only 4.7% of the total genera identified, with SAR Klebsiella as the most dominant (38.0–61.3%) followed by SAR Escherichia (0–22.2%) and Acinetobacter (3.2–16.0%). The majority of the SAR Klebsiella isolated from the effluents and middle downstream were positive for sul genes. Sul genes-negative SAR Escherichia and Acinetobacter were low (<20%). Canonical-correlation analysis (CCA) showed that SAs residues and inorganic nutrients exerted significant impacts on microbial community and total sul genes. Network analysis identified 11 SARB as potential sul genes bacterial carriers. These findings indicated that anthropogenic activities exerted impacts on the microbial community structure and SAs resistance in the Larut River.
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Suzuki S, Ogo M, Takada H, Seki K, Mizukawa K, Kadoya A, Yokokawa T, Sugimoto Y, Sato-Takabe Y, Boonla C, Anomasiri W, Sukpanyatham N. Contamination of antibiotics and sul and tet(M) genes in veterinary wastewater, river, and coastal sea in Thailand. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 791:148423. [PMID: 34412390 DOI: 10.1016/j.scitotenv.2021.148423] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/04/2021] [Accepted: 06/08/2021] [Indexed: 06/13/2023]
Abstract
Water systems in Southeast Asia accumulate antibiotics and antibiotic resistance genes (ARGs) from multiple origins, notably including human clinics and animal farms. To ascertain the fate of antibiotics and ARGs in natural water environments, we monitored the concentrations of these items in Thailand. Here, we show high concentrations of tetracyclines (72,156.9 ng/L) and lincomycin (23,968.0 ng/L) in pig farms, followed by nalidixic acid in city canals. The city canals and rivers contained diverse distributions of antibiotics and ARGs. Assessments of targeted ARGs, including sul1, sul2, sul3, and tet(M), showed that freshwater (pig farm wastewater, rivers, and canals) consistently contained these ARGs, but these genes were less abundant in seawater. Although sulfonamides were low concentrations (<170 ng/mL), sul1 and sul2 genes were abundant in freshwater (minimum 4.4 × 10-3-maximum 1.0 × 100 copies/16S), suggesting that sul genes have disseminated over a long period, despite cessation of use of this class of antibiotics. Ubiquitous distribution of sul genes in freshwater appeared to be independent of selection pressure. In contrast, water of the coastal sea in the monitored area was not contaminated by these antibiotics or ARGs. The density of Enterobacteriales was lower in seawater than in freshwater, suggesting that the number of ARG-possessing Enterobacteriales falls after entering seawater. From the pig farms, through rivers/canals, to the coastal sea, the occurrence of tetracyclines and tet(M) exhibited some correlation, although not a strong one. However, no correlations were found between concentrations of total antibiotics and ARGs, nor between sulfonamides and sul genes. This is the first comprehensive study showing Thai features of antibiotics and ARGs contaminations. The pig farm is hot spot of antibiotics and ARGs, and sul genes ubiquitously distribute in freshwater environments, which become less abundant in seawater.
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Affiliation(s)
- Satoru Suzuki
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Ehime 790-8577, Japan.
| | - Mitsuko Ogo
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Hideshige Takada
- Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Kanako Seki
- Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Kaoruko Mizukawa
- Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Aya Kadoya
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Taichi Yokokawa
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Yuta Sugimoto
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Yuki Sato-Takabe
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Chanchai Boonla
- Department of Biochemistry, Chulalongkorn University, Bangkok, Thailand
| | - Wilai Anomasiri
- Department of Biochemistry, Chulalongkorn University, Bangkok, Thailand
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Tang X, Shen M, Zhang Y, Zhu D, Wang H, Zhao Y, Kang Y. The changes in antibiotic resistance genes during 86 years of the soil ripening process without anthropogenic activities. CHEMOSPHERE 2021; 266:128985. [PMID: 33228990 DOI: 10.1016/j.chemosphere.2020.128985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 10/30/2020] [Accepted: 11/12/2020] [Indexed: 06/11/2023]
Abstract
This study aimed to reveal the baseline of natural variations in antibiotic resistance genes (ARGs) in soil without anthropogenic activities over the decades. Nine soil samples with different time of soil formation were taken from the Yancheng Wetland National Nature Reserve, China. ARGs and mobile genetic elements (MGEs) were characterized using metagenomic analysis. A total of 196 and 192 subtypes of ARGs were detected in bulk soil and rhizosphere, respectively. The diversity and abundance of ARGs were stable during 69 years probably due to the alkaline pH soil environment but not due to antibiotics. Increases in ARGs after 86 years were probably attributed to more migrant birds inhabited compared with other sampling sites. Multidrug was the most abundant type, and largely shared by soil samples. It was further shown that soil samples could not be clearly distinguished, suggesting a slow process of succession of ARGs in the mudflat. The variation partitioning analysis revealed that the ARG profile was driven by the comprehensive effects exhibited by the bacterial community, MGEs, and environmental factors. Besides, pathogenic bacteria containing ARGs mediated by migrant birds in the area with 86 years of soil formation history nearing human settlements needed special attention. This study revealed the slow variations in ARGs in the soil ripening process without anthropogenic activities over decades, and it provided information for assessing the effect of human activities on the occurrence and dissemination of ARGs.
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Affiliation(s)
- Xingyao Tang
- Yancheng Bioengineering Research Center for 'Binhai Bai-shou-wu', Yancheng Teachers University, Yancheng, Jiangsu, PR China
| | - Min Shen
- Yancheng Bioengineering Research Center for 'Binhai Bai-shou-wu', Yancheng Teachers University, Yancheng, Jiangsu, PR China
| | - Yanzhou Zhang
- Yancheng Bioengineering Research Center for 'Binhai Bai-shou-wu', Yancheng Teachers University, Yancheng, Jiangsu, PR China
| | - Dewei Zhu
- Yancheng Bioengineering Research Center for 'Binhai Bai-shou-wu', Yancheng Teachers University, Yancheng, Jiangsu, PR China
| | - Huanli Wang
- Yancheng Bioengineering Research Center for 'Binhai Bai-shou-wu', Yancheng Teachers University, Yancheng, Jiangsu, PR China
| | - Yongqiang Zhao
- Yancheng National Nature Reserve for Rare Birds, Yancheng, Jiangsu, PR China
| | - Yijun Kang
- Yancheng Bioengineering Research Center for 'Binhai Bai-shou-wu', Yancheng Teachers University, Yancheng, Jiangsu, PR China.
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16
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Matsuura R, Kanehara R, Kadoya A, Suzuki S. Adsorption of sulfonamides to marine diatoms and arthropods. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 82:103557. [PMID: 33338605 DOI: 10.1016/j.etap.2020.103557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 11/17/2020] [Accepted: 11/25/2020] [Indexed: 06/12/2023]
Abstract
Sulfonamides are frequently detected in the environment, where these compounds adsorb to soil particles and are retained in the environment. However, adsorption of sulfonamides to planktonic particles in the sea is not known. Here we demonstrate that sulfonamides adsorb to a diatom (Chaetoceros) and an arthropod (Artemia), albeit at low levels, under laboratory conditions. In both plankton, sulfamethazine (SMT) was more readily adsorbed than was sulfamethoxazole (SMX). The adsorption occurred quickly and the concentration on the plankton was stable for at least 24 h (Chaetoceros) or 5 h (Artemia). These data suggest that marine plankton may retain sulfonamides, although the adsorbed concentration per cell or individual is not high.
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Affiliation(s)
- Rie Matsuura
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Ehime, 790-8577, Japan
| | - Reina Kanehara
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Ehime, 790-8577, Japan
| | - Aya Kadoya
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Ehime, 790-8577, Japan
| | - Satoru Suzuki
- Center for Marine Environmental Studies, Ehime University, Matsuyama, Ehime, 790-8577, Japan.
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17
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Sabatino R, Di Cesare A, Dzhembekova N, Fontaneto D, Eckert EM, Corno G, Moncheva S, Bertoni R, Callieri C. Spatial distribution of antibiotic and heavy metal resistance genes in the Black Sea. MARINE POLLUTION BULLETIN 2020; 160:111635. [PMID: 32919124 DOI: 10.1016/j.marpolbul.2020.111635] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/06/2020] [Accepted: 08/30/2020] [Indexed: 06/11/2023]
Abstract
Antibiotic resistance genes (ARGs) and antibiotic resistant bacteria (ARB) are worldwide considered as emerging contaminants of large interest, and a primary threat to human health. It is becoming clear that the environment plays a central role in the transmission, spread, and evolution of antibiotic resistance. Although marine systems have been largely investigated, only a few studies have considered the presence of ARGs in meso- and bathypelagic waters. To date, no molecular based studies have yet been made to investigate the occurrence of ARGs in the Black Sea, the largest meromictic basin in the world, receiving water from a number of important European rivers and their residues of anthropogenic activities in permanently stratified mesopelagic water masses. In this study, we determined the presence and the abundance of five ARGs (blaCTXM, ermB, qnrS, sul2, tetA) and of the heavy metal resistance gene (HMRG) czcA, in different sampling sites in the eastern and western Black Sea, at several depths (up to 1000 m) and various distances from the shoreline. Three ARGs (blaCTXM, sul2, and tetA) and czcA were present in at least 43% of the analysed samples, whereas ermB and qnrS were never detected. In particular, sul2 abundances increased significantly in coastal location, whereas tetA increased with sampling depth. These findings point out the Black Sea as a source of ARGs and HMRGs distributed along the whole water column.
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Affiliation(s)
- Raffaella Sabatino
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy.
| | - Andrea Di Cesare
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy
| | - Nina Dzhembekova
- Institute for Oceanology Fridtjof Nansen, Bulgarian Academy of Sciences, First May Street 40, P.O. Box 152, 9000 Varna, Bulgaria
| | - Diego Fontaneto
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy
| | - Ester M Eckert
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy
| | - Gianluca Corno
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy
| | - Snejana Moncheva
- Institute for Oceanology Fridtjof Nansen, Bulgarian Academy of Sciences, First May Street 40, P.O. Box 152, 9000 Varna, Bulgaria
| | - Roberto Bertoni
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy
| | - Cristiana Callieri
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy
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18
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Nnadozie CF, Odume ON. Freshwater environments as reservoirs of antibiotic resistant bacteria and their role in the dissemination of antibiotic resistance genes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 254:113067. [PMID: 31465907 DOI: 10.1016/j.envpol.2019.113067] [Citation(s) in RCA: 157] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 08/13/2019] [Accepted: 08/15/2019] [Indexed: 05/12/2023]
Abstract
Freshwater environments are susceptible to possible contamination by residual antibiotics that are released through different sources, such as agricultural runoffs, sewage discharges and leaching from nearby farms. Freshwater environment can thus become reservoirs where an antibiotic impact microorganisms, and is an important public health concern. Degradation and dilution processes are fundamental for predicting the actual risk of antibiotic resistance dissemination from freshwater reservoirs. This study reviews major approaches for detecting and quantifying antibiotic resistance bacteria (ARBs) and genes (ARGs) in freshwater and their prevalence in these environments. Finally, the role of dilution, degradation, transmission and the persistence and fate of ARB/ARG in these environments are also reviewed. Culture-based single strain approaches and molecular techniques that include polymerase chain reaction (PCR), quantitative polymerase chain reaction (qPCR) and metagenomics are techniques for quantifying ARB and ARGs in freshwater environments. The level of ARBs is extremely high in most of the river systems (up to 98% of the total detected bacteria), followed by lakes (up to 77% of the total detected bacteria), compared to dam, pond, and spring (<1%). Of most concern is the occurrence of extended-spectrum β-lactamase producing Enterobacteriaceae, methicillin resistant Staphylococcus aureus (MRSA) and vancomycin resistant Enterococcus (VRE), which cause highly epidemic infections. Dilution and natural degradation do not completely eradicate ARBs and ARGs in the freshwater environment. Even if the ARBs in freshwater are effectively inactivated by sunlight, their ARG-containing DNA can still be intact and capable of transferring resistance to non-resistant strains. Antibiotic resistance persists and is preserved in freshwater bodies polluted with high concentrations of antibiotics. Direct transmission of indigenous freshwater ARBs to humans as well as their transitory insertion in the microbiota can occur. These findings are disturbing especially for people that rely on freshwater resources for drinking, crop irrigation, and food in form of fish.
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Affiliation(s)
- Chika F Nnadozie
- Unilever Centre for Environmental Water Quality, Institute for Water Research, Rhodes University, PO Box 94, Grahamstown 6140, South Africa.
| | - Oghenekaro Nelson Odume
- Unilever Centre for Environmental Water Quality, Institute for Water Research, Rhodes University, PO Box 94, Grahamstown 6140, South Africa
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19
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Kohyama Y, Suzuki S. Conjugative Gene Transfer between Nourished and Starved Cells of Photobacterium damselae ssp. damselae and Escherichia coli. Microbes Environ 2019; 34:388-392. [PMID: 31631079 PMCID: PMC6934395 DOI: 10.1264/jsme2.me19099] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Horizontal gene transfer (HGT) between bacteria with different habitats and nutritional requirements is important for the spread of antibiotic resistance genes (ARG). The objective of the present study was to clarify the effects of organic matter on HGT between nourished and starved bacteria. We demonstrated that conjugation ability is affected by the nutritional conditions of the cell and environment. A filter mating HGT experiment was performed using Photobacterium damselae ssp. damselae, strain 04Ya311, a marine-origin bacterium possessing the multidrug-resistance plasmid pAQU1, as the donor, and Escherichia coli as the recipient. The donor and recipient were both prepared as nutrient-rich cultured and starved cells. Filter mating was performed on agar plates with and without organic nutrients. The transcription of the plasmid-borne genes tet(M) and traI was quantitated under eutrophic and oligotrophic conditions. The donor P. damselae transferred the plasmid to E. coli at a transfer rate of 10−4 under oligotrophic and eutrophic conditions. However, when the donor was starved, HGT was not detected under oligotrophic conditions. The addition of organic matter to starved cells restored conjugative HGT even after 6 d of starvation. The transcription of traI was not detected in starved cells, but was restored upon the addition of organic matter. The HGT rate appears to be affected by the transcription of plasmid-associated genes. The present results suggest that the HGT rate is low in starved donors under oligotrophic conditions, but is restored by the addition of organic matter.
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Affiliation(s)
| | - Satoru Suzuki
- Center for Marine Environmental Studies, Ehime University
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20
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Suzuki S, Nakanishi S, Tamminen M, Yokokawa T, Sato-Takabe Y, Ohta K, Chou HY, Muziasari WI, Virta M. Occurrence of sul and tet(M) genes in bacterial community in Japanese marine aquaculture environment throughout the year: Profile comparison with Taiwanese and Finnish aquaculture waters. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 669:649-656. [PMID: 30889452 DOI: 10.1016/j.scitotenv.2019.03.111] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 03/06/2019] [Accepted: 03/07/2019] [Indexed: 06/09/2023]
Abstract
The use of antibiotics in aquaculture causes selection pressure for antibiotic-resistant bacteria (ARB). Antibiotic resistance genes (ARGs) may persist in ARB and the environment for long time even after stopping drug administration. Here we show monthly differences in the occurrences of genes conferring resistance to sulfonamides (i.e. sul1, sul2, sul3), and tetracyclines (tet(M)) in Japanese aquaculture seawater accompanied by records of drug administration. sul2 was found to persist throughout the year, whereas the occurrences of sul1, sul3, and tet(M) changed month-to-month. sul3 and tet(M) were detected in natural bacterial assemblages in May and July, but not in colony-forming bacteria, thus suggesting that the sul3 was harbored by the non-culturable fraction of the bacterial community. Comparison of results from Taiwanese, Japanese, and Finnish aquaculture waters reveals that the profile of sul genes and tet(M) in Taiwan resembles that in Japan, but is distinct from that in Finland. To our knowledge, this work represents the first report to use the same method to compare the dynamics of sul genes and tet(M) in aquaculture seawater in different countries.
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Affiliation(s)
- Satoru Suzuki
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime 790-8577, Japan.
| | - Sayoko Nakanishi
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Manu Tamminen
- Department of Microbiology, University of Helsinki, Helsinki, Finland
| | - Taichi Yokokawa
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Yuki Sato-Takabe
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Kohei Ohta
- South Ehime Fisheries Research Center, Ehime University, Ainan, Ehime 798-4292, Japan
| | - Hsin-Yiu Chou
- Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan
| | - Windi I Muziasari
- Department of Microbiology, University of Helsinki, Helsinki, Finland
| | - Marko Virta
- Department of Microbiology, University of Helsinki, Helsinki, Finland
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21
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Hara H, Yusaimi YA, Zulkeflle SNM, Sugiura N, Iwamoto K, Goto M, Utsumi M, Othman NB, Zakaria Z. Molecular characterization of multi-drug resistant Escherichia coli isolates from tropical environments in Southeast Asia. J GEN APPL MICROBIOL 2019; 64:284-292. [PMID: 29877296 DOI: 10.2323/jgam.2018.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The emergence of antibiotic resistance among multidrug-resistant (MDR) microbes is of growing concern, and threatens public health globally. A total of 129 Escherichia coli isolates were recovered from lowland aqueous environments near hospitals and medical service centers in the vicinity of Kuala Lumpur, Malaysia. Among the eleven antibacterial agents tested, the isolates were highly resistant to trimethoprim-sulfamethoxazole (83.7%) and nalidixic acid (71.3%) and moderately resistant to ampicillin and chloramphenicol (66.7%), tetracycline (65.1%), fosfomycin (57.4%), cefotaxime (57.4%), and ciprofloxacin (57.4%), while low resistance levels were found with aminoglycosides (kanamycin, 22.5%; gentamicin, 21.7%). The presence of relevant resistance determinants was evaluated, and the genotypic resistance determinants were as follows: sulfonamides (sulI, sulII, and sulIII), trimethoprim (dfrA1 and dfrA5), quinolones (qnrS), β-lactams (ampC and blaCTX-M), chloramphenicol (cmlA1 and cat2), tetracycline (tetA and tetM), fosfomycin (fosA and fosA3), and aminoglycosides (aphA1 and aacC2). Our data suggest that multidrug-resistant E. coli strains are ubiquitous in the aquatic systems of tropical countries and indicate that hospital wastewater may contribute to this phenomenon.
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Affiliation(s)
- Hirofumi Hara
- Department of Chemical Process Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia
| | - Yus Amira Yusaimi
- Department of Environmental Engineering and Green Technology, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia
| | - Siti Norayuni Mohd Zulkeflle
- Department of Environmental Engineering and Green Technology, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia
| | - Norio Sugiura
- Department of Environmental Engineering and Green Technology, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia.,Graduate School of Life and Environmental Science, University of Tsukuba
| | - Koji Iwamoto
- Department of Environmental Engineering and Green Technology, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia.,Graduate School of Life and Environmental Science, University of Tsukuba
| | - Masafumi Goto
- Department of Chemical Process Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia
| | - Motoo Utsumi
- Graduate School of Life and Environmental Science, University of Tsukuba
| | - Nor'azizi Bin Othman
- Department of Mechanical Precision Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia
| | - Zuriati Zakaria
- Department of Chemical Process Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia
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Ying C, Chang MJ, Hu CH, Chang YT, Chao WL, Yeh SL, Chang SJ, Hsu JT. The effects of marine farm-scale sequentially integrated multi-trophic aquaculture systems on microbial community composition, prevalence of sulfonamide-resistant bacteria and sulfonamide resistance gene sul1. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 643:681-691. [PMID: 29957433 DOI: 10.1016/j.scitotenv.2018.06.204] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/28/2018] [Accepted: 06/17/2018] [Indexed: 06/08/2023]
Abstract
Aquaculture, one of the most important food production practices worldwide, faces serious challenges of mitigating the detrimental impacts of intensive farming on the environment and increased prevalence of antibiotic resistance. To develop an environment-friendly aquaculture system, a land-based and farm-scale sequentially integrated multi-trophic aquaculture (IMTA) system was established for farming Chanos chanos in southwestern Taiwan. In this system, fishes are cultured in combination with organic extractive shellfish and inorganic extractive seaweed. This study aimed to evaluate the prevalence of sulfonamide-resistant bacteria, microbial community structure, and occurrence of sulfonamide resistance genes in the IMTA and traditional aquaculture systems. Water and sediment samples were collected before raising and after harvesting C. chanos. Our results showed that the occurrence of sulfonamide-resistant phenotypes in the IMTA system was comparable with that in influent seawater, while the traditional system exhibited a high sulfonamide resistance rate. Additionally, the traditional system resulted in a deviation of the bacterial community structure from that of seawater. In the water samples from the IMTA system and influent seawater, Proteobacteria and Bacteroidetes were the two dominant phyla, representing approximately 75% and 15% of the community, respectively. In the traditional system, Actinobacteria, constituting 39% of the community, was the dominant bacterial phylum. Thirty-one sulfonamide-resistant bacterial species were isolated. In conclusion, a sequentially IMTA system showed superior ability to maintain the prevalence of antibiotic resistance and the integrity of the bacterial community structure compared to the traditional farming system, representing a potentially valuable aquaculture system for preserving the sustainability of the marine environment.
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Affiliation(s)
- Chingwen Ying
- Department of Microbiology, Soochow University, Taipei 111, Taiwan.
| | - Man-Jung Chang
- Department of Microbiology, Soochow University, Taipei 111, Taiwan
| | - Chia-Hsin Hu
- Department of Microbiology, Soochow University, Taipei 111, Taiwan
| | - Yi-Tang Chang
- Department of Microbiology, Soochow University, Taipei 111, Taiwan
| | - Wei-Liang Chao
- Department of Microbiology, Soochow University, Taipei 111, Taiwan
| | - Shinn-Lih Yeh
- Mariculture Research Center, Fisheries Research Institute, Council of Agriculture, Tainan 724, Taiwan
| | - Su-Jung Chang
- Mariculture Research Center, Fisheries Research Institute, Council of Agriculture, Tainan 724, Taiwan
| | - Jih-Tay Hsu
- Department of Animal Sciences, National Taiwan University, Taipei 111, Taiwan
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23
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He Y, Nurul S, Schmitt H, Sutton NB, Murk TAJ, Blokland MH, Rijnaarts HHM, Langenhoff AAM. Evaluation of attenuation of pharmaceuticals, toxic potency, and antibiotic resistance genes in constructed wetlands treating wastewater effluents. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 631-632:1572-1581. [PMID: 29727981 DOI: 10.1016/j.scitotenv.2018.03.083] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 03/08/2018] [Accepted: 03/08/2018] [Indexed: 06/08/2023]
Abstract
The performance of constructed wetlands (CWs) in the removal of pharmaceutically active compounds (PhACs) is generally evaluated on the basis of chemical analysis. In this work, we used a combination of chemical, toxicological, and molecular analyses to assess the attenuation of PhACs, toxic potency and antibiotic resistance genes (ARGs) in a field study of three CWs serving as tertiary treatment of wastewater treatment plants. First, 17 PhACs were analysed chemically, of which 14 were detected and seven at concentrations >0.1μg/l. Even though some of the individual PhACs were moderately or highly removed in the CWs investigated, median removal of overall PhACs was approximately 50% in the vertical subsurface flow CW (VSF-CW) with a lower hydraulic loading rate while the removal in the other two free water surface flow CWs (SF-CWs) was negligible. Second, toxic potency of wastewater extracts was assessed in a range of bioassays. Estrogenicity was overall attenuated in CWs, while the neurotoxic potency of wastewater extracts did not decrease after passage through the two CWs investigated. Third, the VSF-CW and one of the SF-CW showed a positive removal of an integrase gene and three ARGs tested. The increased concentrations of ARGs in the other SF-CW, as well as the increase of total bacteria in all CWs, may relate to regrowth of resistance-carrying bacteria. Finally, multivariate analysis shows that most PhACs are positively correlated to the observed toxic potency. Additionally, low removal of organics and nutrients seems to parallel with low removal of PhACs. ARGs positively correlated with organics, nutrients and some PhACs, and the integrase gene but not to the respective antibiotics. The insufficient removal of PhACs, toxic potency, and ARGs indicates the need of an optimal design of CWs as tertiary treatment facilities.
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Affiliation(s)
- Yujie He
- Sub-department of Environmental Technology, Wageningen University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianlin Avenue, 210023 Nanjing, China
| | - Sabri Nurul
- Sub-department of Environmental Technology, Wageningen University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Heike Schmitt
- Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 2, 3584 CM Utrecht, The Netherlands
| | - Nora B Sutton
- Sub-department of Environmental Technology, Wageningen University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Tinka A J Murk
- Marine Animal Ecology group, Wageningen University and Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands
| | - Marco H Blokland
- RIKILT-Institute of Food Safety, Wageningen University and Research, P.O. Box 2306, 6700 AE Wageningen, The Netherlands
| | - Huub H M Rijnaarts
- Sub-department of Environmental Technology, Wageningen University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Alette A M Langenhoff
- Sub-department of Environmental Technology, Wageningen University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands.
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24
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Antibiotic Resistance and Extended-Spectrum Beta-Lactamase Production of Escherichia coli Isolated from Irrigation Waters in Selected Urban Farms in Metro Manila, Philippines. WATER 2018. [DOI: 10.3390/w10050548] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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25
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Kim A, Lim Y, Kim N, Luan Nguyen T, Roh HJ, Park CI, Han HJ, Jung SH, Cho MY, Kim DH, Smith P. A Comparison of Genotypic and Phenotypic Methods for Analyzing the Susceptibility to Sulfamethoxazole and Trimethoprim in Edwardsiella piscicida. Microb Drug Resist 2018; 24:1226-1235. [PMID: 29437540 DOI: 10.1089/mdr.2017.0137] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In a study of 39 isolates of Edwardsiella piscicida made from Korean aquaculture sites, sul genes were detected in 16 isolates and dfr genes in 19. Ten isolates were shown to contain both sul and dfr genes. MIC and disc diffusion zones assays were performed to measure the phenotypic susceptibilities of the 39 isolates. Normalized resistance interpretation was applied to these data to categorize isolates as either fully susceptible or as manifesting reduced susceptibility. The standard CLSI protocols specify the use of a mixture of sulfamethoxazole/trimethoprim (20:1) in both MIC and disc diffusion tests. Using the CLSI MIC protocol, 100% of the isolates containing dfr genes, but only 75% of the isolates containing sul genes, were categorized as manifesting reduced susceptibility. Using the CLSI disc diffusion protocol, only 58% of the isolates containing dfr genes and 69% of those containing sul genes were categorized as manifesting reduced susceptibility. When the single agent trimethoprim was substituted for the combined mixture in both the MIC and disc diffusion protocols, 100% of the dfr-positive isolates were categorized as NWT. When the single-agent sulfamethoxazole was substituted, the analysis of the MIC characterized 100% and the disc zone data 94% of the sul-positive isolates as manifesting reduced susceptibility. It is argued that the use of trimethoprim and sulfamethoxazole as single agents in phenotypic susceptibility tests would provide more meaningful data than the currently recommended use of these two agents combined.
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Affiliation(s)
- Ahran Kim
- 1 Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University , Busan, Republic of Korea
| | - Yunjin Lim
- 1 Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University , Busan, Republic of Korea
| | - Nameun Kim
- 1 Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University , Busan, Republic of Korea
| | - Thanh Luan Nguyen
- 1 Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University , Busan, Republic of Korea
| | - Heyong Jin Roh
- 1 Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University , Busan, Republic of Korea
| | - Chan-Il Park
- 2 Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University , Tongyeong, Republic of Korea
| | - Hyun-Ja Han
- 3 Pathology Research Division, National Institute of Fisheries Science , Busan, Republic of Korea
| | - Sung-Hee Jung
- 3 Pathology Research Division, National Institute of Fisheries Science , Busan, Republic of Korea
| | - Mi-Young Cho
- 3 Pathology Research Division, National Institute of Fisheries Science , Busan, Republic of Korea
| | - Do-Hyung Kim
- 1 Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University , Busan, Republic of Korea
| | - Peter Smith
- 4 Department of Microbiology, School of Natural Sciences, National University of Ireland , Galway, Ireland
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Wimalasena S, De Silva B, Hossain S, Pathirana H, Heo GJ. Prevalence and characterisation of quinolone resistance genes in Aeromonas spp. isolated from pet turtles in South Korea. J Glob Antimicrob Resist 2017; 11:34-38. [DOI: 10.1016/j.jgar.2017.06.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 05/16/2017] [Accepted: 06/01/2017] [Indexed: 01/30/2023] Open
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27
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Brumovský M, Bečanová J, Kohoutek J, Borghini M, Nizzetto L. Contaminants of emerging concern in the open sea waters of the Western Mediterranean. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 229:976-983. [PMID: 28781184 DOI: 10.1016/j.envpol.2017.07.082] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 05/19/2017] [Accepted: 07/25/2017] [Indexed: 06/07/2023]
Abstract
Pollution by chemical substances is of concern for the maintenance of healthy and sustainable aquatic environments. While the occurrence and fate of numerous emerging contaminants, especially pharmaceuticals, is well documented in freshwater, their occurrence and behavior in coastal and marine waters is much less studied and understood. This study investigates the occurrence of 58 chemicals in the open surface water of the Western Mediterranean Sea for the first time. 70 samples in total were collected in 10 different sampling areas. 3 pesticides, 11 pharmaceuticals and personal care products and 2 artificial sweeteners were detected at sub-ng to ng/L levels. Among them, the herbicide terbuthylazine, the pharmaceuticals caffeine, carbamazepine, naproxen and paracetamol, the antibiotic sulfamethoxazole, the antibacterial triclocarban and the two artificial sweeteners acesulfame and saccharin were detected in all samples. The compound detected at the highest concentration was saccharin (up to 5.23 ng/L). Generally small spatial differences among individual sampling areas point to a diffuse character of sources which are likely dominated by WWTP effluents and runoffs from agricultural areas or even, at least for pharmaceuticals and artificial food additives, from offshore sources such as ferries and cruising ships. The implications of the ubiquitous presence in the open sea of chemicals that are bio-active or toxic at low doses on photosynthetic organisms and/or bacteria (i.e., terbuthylazine, sulfamethoxazole or triclocarban) deserve scientific attention, especially concerning possible subtle impacts from chronic exposure of pelagic microorganisms.
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Affiliation(s)
- Miroslav Brumovský
- RECETOX - Research Centre for Toxic Compounds in the Environment, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic.
| | - Jitka Bečanová
- RECETOX - Research Centre for Toxic Compounds in the Environment, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic
| | - Jiří Kohoutek
- RECETOX - Research Centre for Toxic Compounds in the Environment, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic
| | - Mireno Borghini
- Istituto di Scienze Marine - ISMAR, Consiglio Nazionale delle Ricerche (CNR), Forte Santa Teresa, 19032 Lerici (SP), Italy
| | - Luca Nizzetto
- RECETOX - Research Centre for Toxic Compounds in the Environment, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic; NIVA - Norwegian Institute for Water Research, Gaustadalléen 21, 0349 Oslo, Norway
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28
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Sugimoto Y, Suzuki S, Nonaka L, Boonla C, Sukpanyatham N, Chou HY, Wu JH. The novel mef (C)– mph (G) macrolide resistance genes are conveyed in the environment on various vectors. J Glob Antimicrob Resist 2017; 10:47-53. [DOI: 10.1016/j.jgar.2017.03.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 03/22/2017] [Accepted: 03/22/2017] [Indexed: 11/29/2022] Open
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29
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Echeverria-Palencia C, Thulsiraj V, Tran N, Ericksen CA, Melendez I, Sanchez MG, Walpert D, Yuan T, Ficara E, Senthilkumar N, Sun F, Li R, Hernandez-Cira M, Gamboa D, Haro H, Paulson SE, Zhu Y, Jay JA. Disparate Antibiotic Resistance Gene Quantities Revealed across 4 Major Cities in California: A Survey in Drinking Water, Air, and Soil at 24 Public Parks. ACS OMEGA 2017; 2:2255-2263. [PMID: 30023659 PMCID: PMC6044758 DOI: 10.1021/acsomega.7b00118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 04/17/2017] [Indexed: 05/08/2023]
Abstract
Widespread prevalence of multidrug and pandrug-resistant bacteria has prompted substantial concern over the global dissemination of antibiotic resistance genes (ARGs). Environmental compartments can behave as genetic reservoirs and hotspots, wherein resistance genes can accumulate and be laterally transferred to clinically relevant pathogens. In this work, we explore the ARG copy quantities in three environmental media distributed across four cities in California and demonstrate that there exist city-to-city disparities in soil and drinking water ARGs. Statistically significant differences in ARGs were identified in soil, where differences in blaSHV gene copies were the most striking; the highest copy numbers were observed in Bakersfield (6.0 × 10-2 copies/16S-rRNA gene copies and 2.6 × 106 copies/g of soil), followed by San Diego (1.8 × 10-3 copies/16S-rRNA gene copies and 3.0 × 104 copies/g of soil), Fresno (1.8 × 10-5 copies/16S-rRNA gene copies and 8.5 × 102 copies/g of soil), and Los Angeles (5.8 × 10-6 copies/16S-rRNA gene copies and 5.6 × 102 copies/g of soil). In addition, ARG copy numbers in the air, water, and soil of each city are contextualized in relation to globally reported quantities and illustrate that individual genes are not necessarily predictors for the environmental resistome as a whole.
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Affiliation(s)
- Cristina
M. Echeverria-Palencia
- Civil
and Environmental Engineering Department, University of California at Los Angeles, 420 Westwood Plaza, Los
Angeles, California 90095, United States
| | - Vanessa Thulsiraj
- Civil
and Environmental Engineering Department, University of California at Los Angeles, 420 Westwood Plaza, Los
Angeles, California 90095, United States
- Biology
Department, Mount Saint Mary’s University, 12001 Chalon Road, Los Angeles, California 90049, United States
| | - Nghi Tran
- Institute
of the Environment and Sustainability, University
of California at Los Angeles, LaKretz Building, Los Angeles, California 90095, United States
| | - Cody A. Ericksen
- Institute
of the Environment and Sustainability, University
of California at Los Angeles, LaKretz Building, Los Angeles, California 90095, United States
| | - Isabel Melendez
- Institute
of the Environment and Sustainability, University
of California at Los Angeles, LaKretz Building, Los Angeles, California 90095, United States
| | - Michael G. Sanchez
- Institute
of the Environment and Sustainability, University
of California at Los Angeles, LaKretz Building, Los Angeles, California 90095, United States
| | - Devin Walpert
- Institute
of the Environment and Sustainability, University
of California at Los Angeles, LaKretz Building, Los Angeles, California 90095, United States
| | - Tony Yuan
- Institute
of the Environment and Sustainability, University
of California at Los Angeles, LaKretz Building, Los Angeles, California 90095, United States
| | - Elizabeth Ficara
- Institute
of the Environment and Sustainability, University
of California at Los Angeles, LaKretz Building, Los Angeles, California 90095, United States
| | - Niru Senthilkumar
- Civil
and Environmental Engineering Department, University of California at Los Angeles, 420 Westwood Plaza, Los
Angeles, California 90095, United States
| | - Fangfang Sun
- Civil
and Environmental Engineering Department, University of California at Los Angeles, 420 Westwood Plaza, Los
Angeles, California 90095, United States
| | - Renjie Li
- Civil
and Environmental Engineering Department, University of California at Los Angeles, 420 Westwood Plaza, Los
Angeles, California 90095, United States
| | - Marisol Hernandez-Cira
- Civil
and Environmental Engineering Department, University of California at Los Angeles, 420 Westwood Plaza, Los
Angeles, California 90095, United States
| | - Demi Gamboa
- Civil
and Environmental Engineering Department, University of California at Los Angeles, 420 Westwood Plaza, Los
Angeles, California 90095, United States
| | - Heather Haro
- Civil
and Environmental Engineering Department, University of California at Los Angeles, 420 Westwood Plaza, Los
Angeles, California 90095, United States
| | - Suzanne E. Paulson
- Institute
of the Environment and Sustainability, University
of California at Los Angeles, LaKretz Building, Los Angeles, California 90095, United States
| | - Yifang Zhu
- Institute
of the Environment and Sustainability, University
of California at Los Angeles, LaKretz Building, Los Angeles, California 90095, United States
| | - Jennifer A. Jay
- Civil
and Environmental Engineering Department, University of California at Los Angeles, 420 Westwood Plaza, Los
Angeles, California 90095, United States
- Institute
of the Environment and Sustainability, University
of California at Los Angeles, LaKretz Building, Los Angeles, California 90095, United States
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30
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Diwan V, Purohit M, Chandran S, Parashar V, Shah H, Mahadik VK, Stålsby Lundborg C, Tamhankar AJ. A Three-Year Follow-Up Study of Antibiotic and Metal Residues, Antibiotic Resistance and Resistance Genes, Focusing on Kshipra-A River Associated with Holy Religious Mass-Bathing in India: Protocol Paper. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14060574. [PMID: 28555050 PMCID: PMC5486260 DOI: 10.3390/ijerph14060574] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/24/2017] [Accepted: 05/26/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND Antibiotic resistance (ABR) is one of the major health emergencies for global society. Little is known about the ABR of environmental bacteria and therefore it is important to understand ABR reservoirs in the environment and their potential impact on health. METHOD/DESIGN Quantitative and qualitative data will be collected during a 3-year follow-up study of a river associated with religious mass-bathing in Central India. Surface-water and sediment samples will be collected from seven locations at regular intervals for 3 years during religious mass-bathing and in absence of it to monitor water-quality, antibiotic residues, resistant bacteria, antibiotic resistance genes and metals. Approval has been obtained from the Ethics Committee of R.D. Gardi Medical College, Ujjain, India (No. 2013/07/17-311). RESULTS The results will address the issue of antibiotic residues and antibiotic resistance with a focus on a river environment in India within a typical socio-behavioural context of religious mass-bathing. It will enhance our understanding about the relationship between antibiotic residue levels, water-quality, heavy metals and antibiotic resistance patterns in Escherichia coli isolated from river-water and sediment, and seasonal differences that are associated with religious mass-bathing. We will also document, identify and clarify the genetic differences/similarities relating to phenotypic antibiotic resistance in bacteria in rivers during religious mass-bathing or during periods when there is no mass-bathing.
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Affiliation(s)
- Vishal Diwan
- Department of Public Health and Environment, R.D. Gardi Medical College, Ujjain 456006, India.
- Department of Public Health Sciences, Global Health, Health Systems and Policy (HSP): Medicines focusing on antibiotics, Karolinska Institutet, Stockholm 17177, Sweden.
- International Centre for Health Research, Ujjain Charitable Trust Hospital and Research Centre, Ujjain 456001, India.
| | - Manju Purohit
- Department of Public Health Sciences, Global Health, Health Systems and Policy (HSP): Medicines focusing on antibiotics, Karolinska Institutet, Stockholm 17177, Sweden.
- Department of Pathology, R.D. Gardi Medical College, Ujjain 456006, India.
| | - Salesh Chandran
- Department of Public Health Sciences, Global Health, Health Systems and Policy (HSP): Medicines focusing on antibiotics, Karolinska Institutet, Stockholm 17177, Sweden.
- Department of Microbiology, R.D. Gardi Medical College, Ujjain 456003, India.
| | - Vivek Parashar
- Department of Public Health and Environment, R.D. Gardi Medical College, Ujjain 456006, India.
| | - Harshada Shah
- Department of Microbiology, R.D. Gardi Medical College, Ujjain 456003, India.
| | | | - Cecilia Stålsby Lundborg
- Department of Public Health Sciences, Global Health, Health Systems and Policy (HSP): Medicines focusing on antibiotics, Karolinska Institutet, Stockholm 17177, Sweden.
| | - Ashok J Tamhankar
- Department of Public Health Sciences, Global Health, Health Systems and Policy (HSP): Medicines focusing on antibiotics, Karolinska Institutet, Stockholm 17177, Sweden.
- Indian Initiative for Management of Antibiotic Resistance, Department of Environmental Medicine, R.D. Gardi Medical College, Ujjain 456006, India.
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31
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Suzuki S, Pruden A, Virta M, Zhang T. Editorial: Antibiotic Resistance in Aquatic Systems. Front Microbiol 2017; 8:14. [PMID: 28179896 PMCID: PMC5263135 DOI: 10.3389/fmicb.2017.00014] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 01/04/2017] [Indexed: 01/08/2023] Open
Affiliation(s)
- Satoru Suzuki
- Center for Marine Environmental Studies, Ehime University Matsuyama, Japan
| | - Amy Pruden
- Department of Civil and Environmental Engineering, Virginia Tech Blacksburg, VA, USA
| | - Marko Virta
- Department of Food and Environmental Sciences, University of Helsinki Helsinki, Finland
| | - Tong Zhang
- Department of Civil Engineering, The University of Hong Kong Hong Kong, Hong Kong
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You KG, Bong CW, Lee CW. Antibiotic resistance and plasmid profiling of Vibrio spp. in tropical waters of Peninsular Malaysia. ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:171. [PMID: 26884358 DOI: 10.1007/s10661-016-5163-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 02/03/2016] [Indexed: 06/05/2023]
Abstract
Vibrio species isolated from four different sampling stations in the west coast of Peninsular Malaysia were screened for their antimicrobial resistance and plasmid profiles. A total of 138 isolates belonging to 15 different species were identified. Vibrio campbellii, V. parahaemolyticus, V. harveyi, and V. tubiashii were found to predominance species at all stations. High incidence of erythromycin, ampicillin, and mecillinam resistance was observed among the Vibrio isolates. In contrast, resistance against aztreonam, cefepime, streptomycin, sulfamethoxazole, and sulfonamides was low. All the Vibrio isolates in this study were found to be susceptible to imipenem, norfloxacin, ofloxacin, chloramphenicol, trimethoprim/sulfamethoxazole, and oxytetracycline. Ninety-five percent of the Vibrio isolates were resistant to one or more different classes of antibiotic, and 20 different resistance antibiograms were identified. Thirty-two distinct plasmid profiles with molecular weight ranging from 2.2 to 24.8 kb were detected among the resistance isolates. This study showed that multidrug-resistant Vibrio spp. were common in the aquatic environments of west coast of Peninsular Malaysia.
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Affiliation(s)
- K G You
- Laboratory of Microbial Ecology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
- Institute of Ocean and Earth Sciences (IOES), University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - C W Bong
- Laboratory of Microbial Ecology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia.
- Institute of Ocean and Earth Sciences (IOES), University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - C W Lee
- Laboratory of Microbial Ecology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
- Institute of Ocean and Earth Sciences (IOES), University of Malaya, 50603, Kuala Lumpur, Malaysia
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33
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Bien TLT, Sato-Takabe Y, Ogo M, Usui M, Suzuki S. Persistence of Multi-Drug Resistance Plasmids in Sterile Water under Very Low Concentrations of Tetracycline. Microbes Environ 2015; 30:339-43. [PMID: 26639579 PMCID: PMC4676558 DOI: 10.1264/jsme2.me15122] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The persistence of the multi-drug resistance plasmids pAQU1 and IncFIB was examined in bacterial populations under very low selective pressure. We herein demonstrated that these plasmids stably remained not only in the original host, but also in a transconjugant, even after being in a non-culturable state. In seawater microcosms containing Photobacterium damselae 04Ya311 possessing pAQU1, no significant loss of pAQU1 was observed during a 30-d starvation period. The copy numbers of pAQU1 and IncFIB in E. coli were constant. The results of the present study suggest that these plasmids have the ability to remain among various bacteria under oligotrophic conditions with low antibiotic selection pressure.
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Berglund B. Environmental dissemination of antibiotic resistance genes and correlation to anthropogenic contamination with antibiotics. Infect Ecol Epidemiol 2015; 5:28564. [PMID: 26356096 PMCID: PMC4565060 DOI: 10.3402/iee.v5.28564] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 07/28/2015] [Accepted: 08/05/2015] [Indexed: 12/01/2022] Open
Abstract
Antibiotic resistance is a growing problem which threatens modern healthcare globally. Resistance has traditionally been viewed as a clinical problem, but recently non-clinical environments have been highlighted as an important factor in the dissemination of antibiotic resistance genes (ARGs). Horizontal gene transfer (HGT) events are likely to be common in aquatic environments; integrons in particular are well suited for mediating environmental dissemination of ARGs. A growing body of evidence suggests that ARGs are ubiquitous in natural environments. Particularly, elevated levels of ARGs and integrons in aquatic environments are correlated to proximity to anthropogenic activities. The source of this increase is likely to be routine discharge of antibiotics and resistance genes, for example, via wastewater or run-off from livestock facilities and agriculture. While very high levels of antibiotic contamination are likely to select for resistant bacteria directly, the role of sub-inhibitory concentrations of antibiotics in environmental antibiotic resistance dissemination remains unclear. In vitro studies have shown that low levels of antibiotics can select for resistant mutants and also facilitate HGT, indicating the need for caution. Overall, it is becoming increasingly clear that the environment plays an important role in dissemination of antibiotic resistance; further studies are needed to elucidate key aspects of this process. Importantly, the levels of environmental antibiotic contamination at which resistant bacteria are selected for and HGT is facilitated at should be determined. This would enable better risk analyses and facilitate measures for preventing dissemination and development of antibiotic resistance in the environment.
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Affiliation(s)
- Björn Berglund
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden;
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35
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Germond A, Kim SJ. Genetic diversity of oxytetracycline-resistant bacteria and tet(M) genes in two major coastal areas of South Korea. J Glob Antimicrob Resist 2015; 3:166-173. [DOI: 10.1016/j.jgar.2015.04.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 04/22/2015] [Accepted: 04/22/2015] [Indexed: 10/23/2022] Open
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36
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Suzuki S, Ogo M, Koike T, Takada H, Newman B. Sulfonamide and tetracycline resistance genes in total- and culturable-bacterial assemblages in South African aquatic environments. Front Microbiol 2015; 6:796. [PMID: 26300864 PMCID: PMC4523819 DOI: 10.3389/fmicb.2015.00796] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 07/22/2015] [Indexed: 01/15/2023] Open
Abstract
Antibiotic resistant bacteria are ubiquitous in the natural environment. The introduction of effluent derived antibiotic resistance genes (ARGs) into aquatic environments is of concern in the spreading of genetic risk. This study showed the prevalence of sulfonamide and tetracycline resistance genes, sul1, sul2, sul3, and tet(M), in the total bacterial assemblage and colony forming bacterial assemblage in river and estuarine water and sewage treatment plants (STP) in South Africa. There was no correlation between antibiotic concentrations and ARGs, suggesting the targeted ARGs are spread in a wide area without connection to selection pressure. Among sul genes, sul1 and sul2 were major genes in the total (over 10(-2) copies/16S) and colony forming bacteria assemblages (∼10(-1) copies/16S). In urban waters, the sul3 gene was mostly not detectable in total and culturable assemblages, suggesting sul3 is not abundant. tet(M) was found in natural assemblages with 10(-3) copies/16S level in STP, but was not detected in colony forming bacteria, suggesting the non-culturable (yet-to-be cultured) bacterial community in urban surface waters and STP effluent possess the tet(M) gene. Sulfamethoxazole (SMX) resistant (SMX(r)) and oxytetracycline (OTC) resistant (OTC(r)) bacterial communities in urban waters possessed not only sul1 and sul2 but also sul3 and tet(M) genes. These genes are widely distributed in SMX(r) and OTC(r) bacteria. In conclusion, urban river and estuarine water and STP effluent in the Durban area were highly contaminated with ARGs, and the yet-to-be cultured bacterial community may act as a non-visible ARG reservoir in certain situations.
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Affiliation(s)
- Satoru Suzuki
- Center for Marine Environmental Studies, Ehime University Matsuyama, Japan
| | - Mitsuko Ogo
- Center for Marine Environmental Studies, Ehime University Matsuyama, Japan
| | - Tatsuya Koike
- Tokyo University of Agriculture and Technology Fuchu, Japan
| | | | - Brent Newman
- Coastal Systems Research Group, Natural Resources and the Environment, The Council for Scientific and Industrial Research Durban, South Africa
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Thao NV, Nozawa A, Obayashi Y, Kitamura SI, Yokokawa T, Suzuki S. Extracellular proteases are released by ciliates in defined seawater microcosms. MARINE ENVIRONMENTAL RESEARCH 2015; 109:95-102. [PMID: 26115436 DOI: 10.1016/j.marenvres.2015.06.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 06/12/2015] [Accepted: 06/17/2015] [Indexed: 06/04/2023]
Abstract
The biodegradation of proteins in seawater requires various proteases which are commonly thought to be mainly derived from heterotrophic bacteria. We, however, found that protists showed a high protease activity and continuously produced trypsin-type enzymes. The free-living marine heterotrophic ciliate Paranophrys marina together with an associated bacterium was isolated and used for microcosm incubation with different concentrations of killed bacteria as food for 10 days. The results showed that the co-existence of the ciliate with its associated bacterium produced a significant protease activity in both cell-associated and cell-free fractions while that in the associated bacterium only microcosm was negligible. The protease profiles are different between cell-associated and cell-free fractions, and a trypsin-type enzyme hydrolyzing Boc-Val-Leu-Lys-MCA was detected throughout the period in the presence of ciliates. This suggests that ciliates release proteases into the surrounding environment which could play a role in protein digestion outside cells. It has been previously suggested that bacteria are the major transformers in seawater. We here present additional data which indicates that protists, or at least ciliates with their specific enzymes, are a potential player in organic matter degradation in water columns.
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Affiliation(s)
- Ngo Vy Thao
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime, Japan; Faculty of Environment and Resources, Nong Lam University, Ho Chi Minh City, Vietnam
| | - Akino Nozawa
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime, Japan
| | - Yumiko Obayashi
- Faculty of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan
| | - Shin-Ichi Kitamura
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime, Japan
| | - Taichi Yokokawa
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime, Japan
| | - Satoru Suzuki
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime, Japan.
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Czekalski N, Sigdel R, Birtel J, Matthews B, Bürgmann H. Does human activity impact the natural antibiotic resistance background? Abundance of antibiotic resistance genes in 21 Swiss lakes. ENVIRONMENT INTERNATIONAL 2015; 81:45-55. [PMID: 25913323 DOI: 10.1016/j.envint.2015.04.005] [Citation(s) in RCA: 159] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Revised: 03/30/2015] [Accepted: 04/10/2015] [Indexed: 05/06/2023]
Abstract
Antibiotic resistance genes (ARGs) are emerging environmental contaminants, known to be continuously discharged into the aquatic environment via human and animal waste. Freshwater aquatic environments represent potential reservoirs for ARG and potentially allow sewage-derived ARG to persist and spread in the environment. This may create increased opportunities for an eventual contact with, and gene transfer to, human and animal pathogens via the food chain or drinking water. However, assessment of this risk requires a better understanding of the level and variability of the natural resistance background and the extent of the human impact. We have analyzed water samples from 21 Swiss lakes, taken at sampling points that were not under the direct influence of local contamination sources and analyzed the relative abundance of ARG using quantitative real-time PCR. Copy numbers of genes mediating resistance to three different broad-spectrum antibiotic classes (sulfonamides: sul1, sul2, tetracyclines: tet(B), tet(M), tet(W) and fluoroquinolones: qnrA) were normalized to copy numbers of bacterial 16S rRNA genes. We used multiple linear regression to assess if ARG abundance is related to human activities in the catchment, microbial community composition and the eutrophication status of the lakes. Sul genes were detected in all sampled lakes, whereas only four lakes contained quantifiable numbers of tet genes, and qnrA remained below detection in all lakes. Our data indicate higher abundance of sul1 in lakes with increasing number and capacity of wastewater treatment plants (WWTPs) in the catchment. sul2 abundance was rather related to long water residence times and eutrophication status. Our study demonstrates the potential of freshwater lakes to preserve antibiotic resistance genes, and provides a reference for ARG abundance from lake systems with low human impact as a baseline for assessing ARG contamination in lake water.
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Affiliation(s)
- Nadine Czekalski
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Surface Waters - Research and Management, 6047 Kastanienbaum, Switzerland
| | - Radhika Sigdel
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Surface Waters - Research and Management, 6047 Kastanienbaum, Switzerland
| | - Julia Birtel
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Aquatic Ecology, 6047 Kastanienbaum, Switzerland
| | - Blake Matthews
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Aquatic Ecology, 6047 Kastanienbaum, Switzerland
| | - Helmut Bürgmann
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Surface Waters - Research and Management, 6047 Kastanienbaum, Switzerland.
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Harnisz M, Korzeniewska E, Gołaś I. The impact of a freshwater fish farm on the community of tetracycline-resistant bacteria and the structure of tetracycline resistance genes in river water. CHEMOSPHERE 2015; 128:134-41. [PMID: 25698291 DOI: 10.1016/j.chemosphere.2015.01.035] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 12/30/2014] [Accepted: 01/12/2015] [Indexed: 05/16/2023]
Abstract
The aim of this study was to assess the impact of a fish farm on the structure of antibiotic resistant bacteria and antibiotic resistance genes in water of Drwęca River. Samples of upstream river waters; post-production waters and treated post-production waters from fish farm; as well as downstream river waters were monitored for tetracycline resistant bacteria, tetracycline resistant genes, basic physico-chemical parameters and tetracyclines concentration. The river waters was characterized by low levels of pollution, which was determined based on water temperature, pH and concentrations of dissolved oxygen and tetracycline antibiotics. Culture-dependent (heterotrophic plate counts, counts of bacteria resistant to oxytetracycline (OTC(R)) and doxycycline (DOX(R)), minimum inhibitory concentrations for oxytetracycline and doxycycline, multidrug resistance of OTC(R) and DOX(R), qualitative composition of OTC(R) and DOX(R), prevalence of tet genes in resistant isolates) and culture-independent surveys (quantity of tet gene copies) revealed no significant differences in the abundance of antibiotic-resistant bacteria and antibiotic resistance genes between the studied samples. The only way in which the fish farm influenced water quality in the Drwęca River was by increasing the diversity of tetracycline-resistance genes. However, it should also be noted that the bacteria of the genera Aeromonas sp. and Acinetobacter sp. were able to transfer 6 out of 13 tested tet genes into Escherichiacoli, which can promote the spread of antibiotic resistance in the environment.
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Affiliation(s)
- Monika Harnisz
- Department of Environmental Microbiology, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-957 Olsztyn, Poland.
| | - Ewa Korzeniewska
- Department of Environmental Microbiology, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-957 Olsztyn, Poland
| | - Iwona Gołaś
- Department of Environmental Microbiology, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-957 Olsztyn, Poland
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Lin J, Nishino K, Roberts MC, Tolmasky M, Aminov RI, Zhang L. Mechanisms of antibiotic resistance. Front Microbiol 2015; 6:34. [PMID: 25699027 PMCID: PMC4318422 DOI: 10.3389/fmicb.2015.00034] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 01/11/2015] [Indexed: 12/22/2022] Open
Affiliation(s)
- Jun Lin
- Department of Animal Science, The University of Tennessee Knoxville, TN, USA
| | - Kunihiko Nishino
- Institute of Scientific and Industrial Research, Osaka University Osaka, Japan
| | - Marilyn C Roberts
- Department of Environmental and Occupational Health Sciences, University of Washington Seatle, WA, USA
| | - Marcelo Tolmasky
- Center for Applied Biotechnology Studies, Department of Biological Science, California State University Fullerton, CA, USA
| | - Rustam I Aminov
- Section for Bacteriology, Pathology, and Parasitology, National Veterinary Institute, Technical University of Denmark Frederiksberg, Denmark
| | - Lixin Zhang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences Beijing, China
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Wang N, Yang X, Jiao S, Zhang J, Ye B, Gao S. Sulfonamide-resistant bacteria and their resistance genes in soils fertilized with manures from Jiangsu Province, Southeastern China. PLoS One 2014; 9:e112626. [PMID: 25405870 PMCID: PMC4236111 DOI: 10.1371/journal.pone.0112626] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 10/20/2014] [Indexed: 11/18/2022] Open
Abstract
Antibiotic-resistant bacteria and genes are recognized as new environmental pollutants that warrant special concern. There were few reports on veterinary antibiotic-resistant bacteria and genes in China. This work systematically analyzed the prevalence and distribution of sulfonamide resistance genes in soils from the environments around poultry and livestock farms in Jiangsu Province, Southeastern China. The results showed that the animal manure application made the spread and abundance of antibiotic resistance genes (ARGs) increasingly in the soil. The frequency of sulfonamide resistance genes was sul1 > sul2 > sul3 in pig-manured soil DNA and sul2 > sul1 > sul3 in chicken-manured soil DNA. Further analysis suggested that the frequency distribution of the sul genes in the genomic DNA and plasmids of the SR isolates from manured soil was sul2 > sul1 > sul3 overall (p<0.05). The combination of sul1 and sul2 was the most frequent, and the co-existence of sul1 and sul3 was not found either in the genomic DNA or plasmids. The sample type, animal type and sampling time can influence the prevalence and distribution pattern of sulfonamide resistance genes. The present study also indicated that Bacillus, Pseudomonas and Shigella were the most prevalent sul-positive genera in the soil, suggesting a potential human health risk. The above results could be important in the evaluation of antibiotic-resistant bacteria and genes from manure as sources of agricultural soil pollution; the results also demonstrate the necessity and urgency of the regulation and supervision of veterinary antibiotics in China.
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Affiliation(s)
- Na Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210093, China
- Nanjing Institute of Environmental Science, Ministry of Environmental Protection of China, Nanjing, 210042, China
| | - Xiaohong Yang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Shaojun Jiao
- Nanjing Institute of Environmental Science, Ministry of Environmental Protection of China, Nanjing, 210042, China
| | - Jun Zhang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Boping Ye
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
- * E-mail: (BY); (SG)
| | - Shixiang Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210093, China
- * E-mail: (BY); (SG)
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