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Zhi Q, Zheng B, Teng K, Xiao Y, Zhou X, Tang Q, Li J, Yin H, Meng D, Liu T. Metagenomic approach reveals the role of bioagents in the environmental dissemination risk of rhizosphere soil antibiotic resistance genes pollution. ENVIRONMENTAL RESEARCH 2024:120090. [PMID: 39374754 DOI: 10.1016/j.envres.2024.120090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2024] [Revised: 09/26/2024] [Accepted: 09/28/2024] [Indexed: 10/09/2024]
Abstract
Antibiotic resistance genes (ARGs) have been identified as emerging contaminants, raising concerns around the world. As environmentally friendly bioagents (BA), plant growth-promoting rhizobacteria (PGPR) have been used in agricultural systems. The introduction of BA will lead to the turnover of the microbial communities structure. Nevertheless, it is still unclear how the colonization of the invaded microorganisms could affects the rhizosphere resistome. Consequently, 190 ARGs and 25 integrative and conjugative elements (ICEs) were annotated using the metagenomic approach in 18 samples from the Solanaceae crop rhizosphere soil under BA and conventional treatment (CK) groups. Our study found that, after 90 days of treatment, ARG abundance was lower in the CK group than in the BA group. The results showed that aminoglycoside antibiotic resistance (OprZ), phenicol antibiotic resistance (OprN), aminoglycoside antibiotic resistance (ceoA/B), aminocoumarin antibiotic resistance (mdtB) and phenicol antibiotic resistance (MexW) syntenic with ICEs. Moreover, in 11 sequences, OprN (phenicol antibiotic resistance) was observed to have synteny with ICEPaeLESB58-1, indicating that the ICEs could contribute to the spread of ARGs. Additionally, the binning result showed that the potential bacterial hosts of the ARGs were beneficial bacteria which could promote the nutrition cycle, such as Haliangium, Nitrospira, Sideroxydans, Burkholderia, etc, suggesting that bacterial hosts have a great influence on ARG profiles. According to the findings, considering the dissemination of ARGs, BA should be applied with caution, especially the use of beneficial bacteria in BA. In a nutshell, this study offers valuable insights into ARGs pollution control from the perspective of the development and application of BA, to make effective strategies for blocking pollution risk migration in the ecological environment.
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Affiliation(s)
- Qiqi Zhi
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha, 410083, China
| | - Bufan Zheng
- College of Agronomy, Hunan Agricultural University, Changsha, 410127, China
| | - Kai Teng
- Hunan Province Xiangxi Autonomous Prefecture Tobacco Company, Jishou, 416000, China
| | - Yansong Xiao
- Chenzhou Tobacco Company of Hunan Province, Chenzhou, 423000, China
| | - Xiangping Zhou
- Yongzhou Tobacco Company of Hunan Province, Yongzhou, 425000, China
| | - Qianjun Tang
- College of Plant Protection, Hunan Agricultural University, Changsha, 410127, China
| | - Juan Li
- College of Agronomy, Hunan Agricultural University, Changsha, 410127, China
| | - Huaqun Yin
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha, 410083, China
| | - Delong Meng
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha, 410083, China.
| | - Tianbo Liu
- Tobacco Research Institute of Hunan Province, Changsha, 410004, China.
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Romero-González LE, Montelongo-Martínez LF, González-Valdez A, Quiroz-Morales SE, Cocotl-Yañez M, Franco-Cendejas R, Soberón-Chávez G, Pardo-López L, Bustamante VH. Pseudomonas aeruginosa Isolates from Water Samples of the Gulf of Mexico Show Similar Virulence Properties but Different Antibiotic Susceptibility Profiles than Clinical Isolates. Int J Microbiol 2024; 2024:6959403. [PMID: 38784405 PMCID: PMC11115996 DOI: 10.1155/2024/6959403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/14/2024] [Accepted: 04/27/2024] [Indexed: 05/25/2024] Open
Abstract
Pseudomonas aeruginosa is an opportunistic pathogen found in a wide variety of environments, including soil, water, and habitats associated with animals, humans, and plants. From a One Health perspective, which recognizes the interconnectedness of human, animal, and environmental health, it is important to study the virulence characteristics and antibiotic susceptibility of environmental bacteria. In this study, we compared the virulence properties and the antibiotic resistance profiles of seven isolates collected from the Gulf of Mexico with those of seven clinical strains of P. aeruginosa. Our results indicate that the marine and clinical isolates tested exhibit similar virulence properties; they expressed different virulence factors and were able to kill Galleria mellonella larvae, an animal model commonly used to analyze the pathogenicity of many bacteria, including P. aeruginosa. In contrast, the clinical strains showed higher antibiotic resistance than the marine isolates. Consistently, the clinical strains exhibited a higher prevalence of class 1 integron, an indicator of anthropogenic impact, compared with the marine isolates. Thus, our results indicate that the P. aeruginosa marine strains analyzed in this study, isolated from the Gulf of Mexico, have similar virulence properties, but lower antibiotic resistance, than those from hospitals.
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Affiliation(s)
- Luis E. Romero-González
- Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
| | - Luis F. Montelongo-Martínez
- Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Coyoacán, Mexico
| | - Abigail González-Valdez
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Coyoacán, Mexico
| | - Sara E. Quiroz-Morales
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Coyoacán, Mexico
| | - Miguel Cocotl-Yañez
- Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Coyoacán, Mexico
| | - Rafael Franco-Cendejas
- Instituto Nacional de Rehabilitación “Luis Guillermo Ibarra Ibarra,” Ciudad de México, Mexico
| | - Gloria Soberón-Chávez
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Coyoacán, Mexico
| | - Liliana Pardo-López
- Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
| | - Víctor H. Bustamante
- Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
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Yu Z, Wang Q, Pinilla-Redondo R, Madsen JS, Clasen KAD, Ananbeh H, Olesen AK, Gong Z, Yang N, Dechesne A, Smets B, Nesme J, Sørensen SJ. Horizontal transmission of a multidrug-resistant IncN plasmid isolated from urban wastewater. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 271:115971. [PMID: 38237397 DOI: 10.1016/j.ecoenv.2024.115971] [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: 11/07/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 02/05/2024]
Abstract
Wastewater treatment plants (WWTPs) are considered reservoirs of antibiotic resistance genes (ARGs). Given that plasmid-mediated horizontal gene transfer plays a critical role in disseminating ARGs in the environment, it is important to inspect the transfer potential of transmissible plasmids to have a better understanding of whether these mobile ARGs can be hosted by opportunistic pathogens and should be included in One Health's considerations. In this study, we used a fluorescent-reporter-gene based exogenous isolation approach to capture extended-spectrum beta-lactamases encoding mobile determinants from sewer microbiome samples that enter an urban water system (UWS) in Denmark. After screening and sequencing, we isolated a ∼73 Kbp IncN plasmid (pDK_DARWIN) that harboured and expressed multiple ARGs. Using a dual fluorescent reporter gene system, we showed that this plasmid can transfer into resident urban water communities. We demonstrated the transfer of pDK_DARWIN to microbiome members of both the sewer (in the upstream UWS compartment) and wastewater treatment (in the downstream UWS compartment) microbiomes. Sequence similarity search across curated plasmid repositories revealed that pDK_DARWIN derives from an IncN backbone harboured by environmental and nosocomial Enterobacterial isolates. Furthermore, we searched for pDK_DARWIN sequence matches in UWS metagenomes from three countries, revealing that this plasmid can be detected in all of them, with a higher relative abundance in hospital sewers compared to residential sewers. Overall, this study demonstrates that this IncN plasmid is prevalent across Europe and an efficient vector capable of disseminating multiple ARGs in the urban water systems.
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Affiliation(s)
- Zhuofeng Yu
- Section of Microbiology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark
| | - Qinqin Wang
- Section of Microbiology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark
| | - Rafael Pinilla-Redondo
- Section of Microbiology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark
| | - Jonas Stenløkke Madsen
- Section of Microbiology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark
| | - Kamille Anna Dam Clasen
- Section of Microbiology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark
| | - Hanadi Ananbeh
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Asmus Kalckar Olesen
- Section of Microbiology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark
| | - Zhuang Gong
- Section of Microbiology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark
| | - Nan Yang
- Section of Microbiology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark
| | - Arnaud Dechesne
- Department of Environmental Engineering, Technical University of Denmark, Bygningstorvet 115, DK-2800 Kgs, Lyngby, Denmark
| | - Barth Smets
- Department of Environmental Engineering, Technical University of Denmark, Bygningstorvet 115, DK-2800 Kgs, Lyngby, Denmark
| | - Joseph Nesme
- Section of Microbiology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark.
| | - Søren Johannes Sørensen
- Section of Microbiology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark.
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Mahmud MS, Hosen MA, Hossion MI, Sadik Sabuj MS, Rumi NA, Hossain MK, Dauelbait M, Nafidi HA, Dawoud TM, Ibrahim M, Bourhia M. Isolation, identification, and characterization of resistant bacteria to antibiotics from pharmaceutical effluent and study of their antibiotic resistance. Front Microbiol 2023; 14:1307291. [PMID: 38230310 PMCID: PMC10790235 DOI: 10.3389/fmicb.2023.1307291] [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: 10/04/2023] [Accepted: 11/27/2023] [Indexed: 01/18/2024] Open
Abstract
Pharmaceutical effluents primarily enter aquatic environments through the discharge of treated and untreated wastewater from various sources, including hospitals, pharmaceutical manufacturing facilities, and households. Microbes sourced from pharmaceutical effluents such as Pseudomonas spp. pose a significant public health concern because of their high levels of resistance to multiple drugs and extreme multidrug resistance. Therefore, the present study was conducted for the isolation, identification, and molecular characterization of selected isolates from pharmaceutical effluents and also determined their antibiotic sensitivity patterns. From June 2016 to March 2017, a study was conducted on four well-known pharmaceutical companies specializing in antibiotic production in Dhaka and Gazipur. Four wastewater samples were collected from various origins and then brought to the Bacteriology laboratory for microbiological examination. Twelve pure isolates were obtained and characterized through cultural and biochemical tests while molecular identification of Pseudomonas spp. was performed using the 16S rRNA gene sequence. Twelve commercially available antibiotics were used for antibiotic sensitivity tests using Kirby-Bauer disk diffusion methods. We isolated the most predominant isolates, Pseudomonas aeruginosa (41.67%), followed by Bacillus spp. (33.33%) and Staphylococcus spp. (25%) respectively. Among 12 antibiotics, ciprofloxacin is 100% sensitive against P. aeruginosa, while the remaining 11 antibiotics are 100% resistant. Bacillus spp. showed 100% resistance to all antibiotics while 50% sensitive to vancomycin and 100% to chloramphenicol, respectively. Staphylococcus spp. was 100% resistant to all antibiotics. Our research suggested that P. aeruginosa is the reservoir of antibiotic resistance genes and spreads disease to humans from the environment. The findings of this study, i.e., the isolation, identification, and characterization of antibiotic-resistant bacteria from pharmaceutical effluent have highlighted, comprehended, and mitigated the dissemination of antibiotic resistance and opportunistic bacteria.
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Affiliation(s)
- Md. Shahin Mahmud
- Department of Microbiology, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh
| | - Md. Aoulad Hosen
- Department of Microbiology, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh
| | - Md. Ishaq Hossion
- Department of Microbiology, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh
| | - Md. Shiblee Sadik Sabuj
- Department of Microbiology, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh
| | - Nazmi Ara Rumi
- Department of Microbiology, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh
| | - Md. Khaled Hossain
- Department of Microbiology, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh
| | - Musaab Dauelbait
- Department of Scientific Translation, Faculty of Translation, University of Bahri, Khartoum, Sudan
| | - Hiba-Allah Nafidi
- Department of Food Science, Faculty of Agricultural and Food Sciences, Laval University, Quebec City, QC, Canada
| | - Turki M. Dawoud
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Muhammad Ibrahim
- Department of Biosciences, COMSATS University Islamabad, Sahiwal Campus, Sahiwal, Pakistan
| | - Mohammed Bourhia
- Department of Chemistry and Biochemistry, Faculty of Medicine and Pharmacy, Ibn Zohr University, Laayoune, Morocco
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5
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Sun P, Niu K, Du H, Li R, Chen J, Lu X. Ultrasensitive rapid detection of antibiotic resistance genes by electrochemical ratiometric genosensor based on 2D monolayer Ti 3C 2@AuNPs. Biosens Bioelectron 2023; 240:115643. [PMID: 37651949 DOI: 10.1016/j.bios.2023.115643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 09/02/2023]
Abstract
As an important emerging pollutant, antibiotic resistance genes (ARGs) monitoring is crucial to protect the ecological environment and public health, but its rapid and accurate detection is still a major challenge. In this study, a new single-labeled dual-signal output ratiometric electrochemical genosensor (E-DNA) was developed for the rapid and highly sensitive detection of ARGs using a synergistic signal amplification strategy of T3C2@Au nanoparticles (T3C2@AuNPs) and isothermal strand displacement polymerase reaction (ISDPR). Specially, two-dimensional monolayer T3C2 nanosheets loaded with uniformly gold nanoparticles were prepared and used as the sensing platform of the E-DNA sensor. Benefiting from excellent conductivity and large specific surface area of Ti3C2@AuNPs, the probe immobilization capacity of the E-DNA sensor is doubled, and electrochemical response signals of the E-DNA sensor were significantly improved. The proposed single-labeled dual-signal output ratiometric sensing strategy exhibits three to six times higher sensitivity for the sul2 gene than the single-signal sensing strategy, which significantly reduces cost meanwhile retaining the advantages of high sensitivity and reliability offered by conventional dual-labeled ratiometric sensors. Coupled with ISDPR amplification technology, the E-DNA sensor has a wider linear range from 10 fM to 10 nM and a limit of detection as low as 2.04 fM (S/N=3). More importantly, the E-DNA sensor demonstrates excellent specificity, good stability and reproducibility for target ARGs detection in real water samples. The proposed new sensing strategy provides a highly sensitive and versatile tool for the rapid and accurate quantitative analysis of various ARGs in environmental water samples.
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Affiliation(s)
- Pengcheng Sun
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, PR China; Dalian Minzu University, College of Mechanical and Electronic Engineering, Dalian, 116600, PR China
| | - Kai Niu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Haiying Du
- Dalian Minzu University, College of Mechanical and Electronic Engineering, Dalian, 116600, PR China.
| | - Ruixin Li
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, PR China
| | - Jiping Chen
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, PR China
| | - Xianbo Lu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, PR China.
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Varandas S, Fernandes C, Cabecinha E, Gomes S, da Silva GJ, Saavedra MJ. Escherichia coli Phylogenetic and Antimicrobial Pattern as an Indicator of Anthropogenic Impact on Threatened Freshwater Mussels. Antibiotics (Basel) 2023; 12:1401. [PMID: 37760699 PMCID: PMC10525238 DOI: 10.3390/antibiotics12091401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/24/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
Freshwater bivalves are widely used as accumulation indicators and monitoring tools for assessing contaminant effects on different levels of biological integration. This pilot study aimed to explore the phylogenetic diversity of Escherichia coli isolated from freshwater mussels (Margaritifera margaritifera and Potomida littoralis) and characterize their phenotypes and antibiotic resistance profiles. Samples were collected in the Rabaçal and Tua Rivers, in the Douro basin, Portugal-two sites representing different levels of anthropogenic contamination. Antimicrobial susceptibility testing was performed via the disk diffusion method with 21 antibiotics. Results showed that 31% of isolates were multidrug-resistant (MDR). Thus, freshwater mussels provide an effective and time-integrated approach for identifying/quantifying fecal indicators, including MDR bacteria. PCR-based assays were designed for assessing phylogenetic E. coli groups. Among the E. coli isolates, the highest prevalence (44%) was observed in group D or E, followed by group E or Clade I (25%), group A (19%), and group B1 (13%). E. coli isolated from M. margaritifera predominantly exhibited a higher prevalence of phylogroups D or E, whereas E. coli from P. littoralis showed associations with phylogroups E or clade I, B1, A, and D or E. Our results provide new insights into the phylogenetic diversity of E. coli in freshwater bivalves. Additionally, the findings highlight the possible linkage of phylogroups with the host species, the geographical location in the water stream, and human activity. Using E. coli as a bioindicator isolated from freshwater mussels helps us grasp how human activities affect the environment. This study has important implications for those interested in safeguarding water resources, especially in tackling antibiotic resistance in aquatic ecosystems.
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Affiliation(s)
- Simone Varandas
- CITAB-Inov4Agro—Centre for the Research and Technology of Agro-Environmental and Biological Sciences—Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal; (S.V.); (E.C.)
- CIBIO/InBIO/BIOPOLIS—Research Center in Biodiversity and Genetic Resources, University of Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal
| | - Conceição Fernandes
- CIMO—Centro de Investigação de Montanha/SusTEC—Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha, IPB-Institute Polytechnique of Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal;
- A2BUnit—Antimicrobials, Biocides & Biofilms Unit, Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal;
| | - Edna Cabecinha
- CITAB-Inov4Agro—Centre for the Research and Technology of Agro-Environmental and Biological Sciences—Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal; (S.V.); (E.C.)
| | - Sónia Gomes
- A2BUnit—Antimicrobials, Biocides & Biofilms Unit, Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal;
- CIIMAR/CIIMAR-LA—Interdisciplinary Centre of Marine and Environmental Research, Novo Edifício do Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Gabriela Jorge da Silva
- Center for Neuroscience and Cell Biology (CNC), Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal;
| | - Maria José Saavedra
- CITAB-Inov4Agro—Centre for the Research and Technology of Agro-Environmental and Biological Sciences—Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal; (S.V.); (E.C.)
- A2BUnit—Antimicrobials, Biocides & Biofilms Unit, Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal;
- CIIMAR/CIIMAR-LA—Interdisciplinary Centre of Marine and Environmental Research, Novo Edifício do Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
- CECAV—Animal and Veterinary Research Center and AL4AnimalS, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
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Hallmann A, Leszczyńska D, Czumaj A, Świeżak J, Caban M, Michnowska A, Smolarz K. Oxytetracycline-induced inflammatory process without oxidative stress in blue mussels Mytilus trossulus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:80462-80477. [PMID: 37301807 PMCID: PMC10345040 DOI: 10.1007/s11356-023-28057-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
Potentially harmful compounds including pharmaceuticals are commonly found in marine waters and sediments. Amongst those, antibiotics and their metabolites are detected worldwide in various abiotic (at concentrations as high as µg/L) and biotic matrices at ng/gram of tissue, posing a risk to non-target species exposed to them such as blue mussels. Amongst those, oxytetracycline (OTC) belongs to the most detected antibiotics in the marine environment. In this work, we concentrated on studying the potential induction of oxidative stress, activation of cellular detoxification processes (including Phase I and Phase II xenobiotic biotransformation enzymes) and multixenobiotic resistance pumps (Phase III) as well as changes in the aromatisation efficiency in Mytilus trossulus exposed to 100 μg/L OTC. Our results show that 100 µg/L OTC concentration did not provoke cellular oxidative stress and did not affect the expression of genes involved in detoxification processes in our model. Moreover, no effect of OTC on aromatisation efficiency was found. Instead, phenoloxidase activity measured in haemolymph was significantly higher in OTC exposed mussels than in those from the control (30.95 ± 3.33 U/L and 17.95 ± 2.75 U/L, respectively). OTC exposed mussels were also characterised by a tissue-dependant activation of major vault protein (MVP) gene expression (1.5 times higher in gills and 2.4 times higher in the digestive system) and a decreased expression of the nuclear factor kappa B-a (NF-κB) gene (3.4 times lower in the digestive system) when compared to those from the control. Additionally, an elevated number of regressive changes and inflammatory responses in tissues such as gills, digestive system and mantle (gonads) was observed underlining the worsening of bivalves' general health. Therefore, instead of a free-radical effect of OTC, we for the first time describe the occurrence of typical changes resulting from antibiotic therapy in non-target organisms like M. trossulus exposed to antibiotics such as OTC.
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Affiliation(s)
- Anna Hallmann
- Department of Pharmaceutical Biochemistry, Medical University of Gdańsk, Gdańsk, Poland
| | - Dagmara Leszczyńska
- Department of Pharmaceutical Biochemistry, Medical University of Gdańsk, Gdańsk, Poland
| | - Aleksandra Czumaj
- Department of Pharmaceutical Biochemistry, Medical University of Gdańsk, Gdańsk, Poland
| | - Justyna Świeżak
- Department of Marine Ecosystem Functioning, University of Gdańsk, Gdynia, Poland
| | - Magda Caban
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdańsk, Gdańsk, Poland
| | - Alicja Michnowska
- Department of Marine Ecosystem Functioning, University of Gdańsk, Gdynia, Poland
| | - Katarzyna Smolarz
- Department of Marine Ecosystem Functioning, University of Gdańsk, Gdynia, Poland.
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8
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Wang Y, Ni K, Zhang Z, Xu N, Lei C, Chen B, Zhang Q, Sun L, Chen Y, Lu T, Qian H. Metatranscriptome deciphers the effects of non-antibiotic antimicrobial agents on antibiotic resistance and virulence factors in freshwater microcosms. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 258:106513. [PMID: 37001199 DOI: 10.1016/j.aquatox.2023.106513] [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: 02/28/2023] [Revised: 03/26/2023] [Accepted: 03/27/2023] [Indexed: 06/19/2023]
Abstract
The emergence and transmission of antibiotic resistance genes (ARGs) and virulence factors (VFs) pose health risks to the ecosystem and humans. Understanding how non-antibiotic antimicrobial agents drive the expression of ARGs and VFs in freshwater ecosystems, however, remains large challenges. Here, we employed freshwater microcosms and performed metatranscriptomic analysis to investigate the expression profiles of ARGs and VFs in response to pollutants of non-antibiotic antimicrobial agents, including silver nanoparticles (AgNPs) and azoxystrobin. Results showed that AgNPs significantly inhibited the total expression of ARGs and VFs and decreased the number of pathogenic microorganisms expressing these genes. Azoxystrobin increased the total expression of ARGs and VFs, as well as the number of pathogens expressing VFs, but concomitantly reduced the number of pathogens expressing ARGs. Two tested pollutants dramatically changed the expression profiles of ARGs and VFs, with distinct patterns: AgNPs displayed a negative effect, while azoxystrobin showed a positive effect on their expression profiles. Our findings provided a systematical insight to demonstrate that non-antibiotic antimicrobial agents with different mechanisms of action showed various effects on ARGs and VFs, and therefore represented different ecological risks.
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Affiliation(s)
- Yan Wang
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Kepin Ni
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Zhenyan Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Nuohan Xu
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Chaotang Lei
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Bingfeng Chen
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Qi Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Liwei Sun
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yiling Chen
- Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Tao Lu
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Haifeng Qian
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
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9
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Ji B, Qin J, Ma Y, Liu X, Wang T, Liu G, Li B, Wang G, Gao P. Metagenomic analysis reveals patterns and hosts of antibiotic resistance in different pig farms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:52087-52106. [PMID: 36826766 DOI: 10.1007/s11356-023-25962-1] [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: 10/09/2022] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
In actual production environments, antibiotic-resistant genes (ARGs) are abundant in pig manure, which can form transmission chains through animals, the environment, and humans, thereby threatening human health. Therefore, based on metagenomic analysis methods, ARGs and mobile genetic elements (MGEs) were annotated in pig manure samples from 6 pig farms in 3 regions of Shanxi Province, and the potential hosts of ARGs were analyzed. The results showed that a total of 14 ARG types were detected, including 182 ARG subtypes, among which tetracycline, phenol, aminoglycoside, and macrolide resistance genes were the main ones. ARG profiles, MGE composition, and microbial communities were significantly different in different regions as well as between different pig farms. In addition, Anaerobutyricum, Butyrivibrio, and Turicibacter were significantly associated with multiple ARGs, and bacteria such as Prevotella, Bacteroides, and the family Oscillospiraceae carried multiple ARGs, suggesting that these bacteria are potential ARG hosts in pig manure. Procrustes analysis showed that bacterial communities and MGEs were significantly correlated with ARG profiles. Variation partitioning analysis results indicated that the combined effect of MGEs and bacterial communities accounted for 64.08% of resistance variation and played an important role in ARG profiles. These findings contribute to our understanding of the dissemination and persistence of ARGs in actual production settings, and offer some guidance for the prevention and control of ARGs contamination.
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Affiliation(s)
- Bingzhen Ji
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Junjun Qin
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Yijia Ma
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Xin Liu
- College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing, 100097, China
| | - Tian Wang
- College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing, 100097, China
| | - Guiming Liu
- Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Bugao Li
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Guoliang Wang
- Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Pengfei Gao
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, Shanxi, China.
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10
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Tarek MH, Garner E. A proposed framework for the identification of indicator genes for monitoring antibiotic resistance in wastewater: Insights from metagenomic sequencing. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 854:158698. [PMID: 36108825 DOI: 10.1016/j.scitotenv.2022.158698] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/07/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
Antibiotic resistance is one of the greatest threats to global human and animal health of our time. Municipal wastewater has been identified as a hotspot of antibiotic resistance contamination to water bodies. However, there are numerous potential antibiotic resistant pathogens and their associated antibiotic resistance genes (ARGs), making it difficult to implement routine monitoring that addresses the breadth of the problem. The objective of this study was to identify candidate indicator ARGs for monitoring antibiotic resistance in wastewater and receiving water bodies. We developed a framework to identify indicator ARGs that incorporated clinical relevance, abundance in wastewater, geographic ubiquity, environmental relevance, ARG mobility, associations with mobile genetic elements, and the availability of quantitative analytical methods. To identify indicator ARGs, published metagenomic sequencing data from 191 wastewater samples originating from 64 countries across the world were obtained from online public repositories. Through ARG annotation and network analysis, this framework revealed 56 candidate indicator ARGs distributed across four modules of strongly correlated ARGs, with one ARG from each module (oqxA, ermB, sul1, and mexE) proposed as a minimally redundant monitoring target. The results of this study provide the basis for antibiotic resistance surveillance and monitoring framework in wastewater and contaminated waterways.
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Affiliation(s)
- Mehedi Hasan Tarek
- Wadsworth Department of Civil & Environmental Engineering, West Virginia University, Morgantown, WV 26506, United States of America
| | - Emily Garner
- Wadsworth Department of Civil & Environmental Engineering, West Virginia University, Morgantown, WV 26506, United States of America.
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11
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Cellier-Goetghebeur S, Lafontaine K, Lemay-St-Denis C, Tsamo P, Bonneau-Burke A, Copp JN, Pelletier JN. Discovery of Highly Trimethoprim-Resistant DfrB Dihydrofolate Reductases in Diverse Environmental Settings Suggests an Evolutionary Advantage Unrelated to Antibiotic Resistance. Antibiotics (Basel) 2022; 11:1768. [PMID: 36551425 PMCID: PMC9774602 DOI: 10.3390/antibiotics11121768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 11/30/2022] [Accepted: 12/02/2022] [Indexed: 12/14/2022] Open
Abstract
Type B dihydrofolate reductases (DfrB) are intrinsically highly resistant to the widely used antibiotic trimethoprim, posing a threat to global public health. The ten known DfrB family members have been strongly associated with genetic material related to the application of antibiotics. Several dfrB genes were associated with multidrug resistance contexts and mobile genetic elements, integrated both in chromosomes and plasmids. However, little is known regarding their presence in other environments. Here, we investigated the presence of dfrB beyond the traditional areas of enquiry by conducting metagenomic database searches from environmental settings where antibiotics are not prevalent. Thirty putative DfrB homologues that share 62 to 95% identity with characterized DfrB were identified. Expression of ten representative homologues verified trimethoprim resistance in all and dihydrofolate reductase activity in most. Contrary to samples associated with the use of antibiotics, the newly identified dfrB were rarely associated with mobile genetic elements or antibiotic resistance genes. Instead, association with metabolic enzymes was observed, suggesting an evolutionary advantage unrelated to antibiotic resistance. Our results are consistent with the hypothesis that multiple dfrB exist in diverse environments from which dfrB were mobilized into the clinically relevant resistome. Our observations reinforce the need to closely monitor their progression.
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Affiliation(s)
- Stella Cellier-Goetghebeur
- Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, QC H3T 1J4, Canada
- The Québec Network for Research on Protein, Function, Engineering and Applications, Québec, QC G1V 0A6, Canada
- CGCC, Center in Green Chemistry and Catalysis, Montréal, QC H3A 0B8, Canada
| | - Kiana Lafontaine
- Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, QC H3T 1J4, Canada
- The Québec Network for Research on Protein, Function, Engineering and Applications, Québec, QC G1V 0A6, Canada
- CGCC, Center in Green Chemistry and Catalysis, Montréal, QC H3A 0B8, Canada
| | - Claudèle Lemay-St-Denis
- Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, QC H3T 1J4, Canada
- The Québec Network for Research on Protein, Function, Engineering and Applications, Québec, QC G1V 0A6, Canada
- CGCC, Center in Green Chemistry and Catalysis, Montréal, QC H3A 0B8, Canada
| | - Princesse Tsamo
- Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, QC H3T 1J4, Canada
- The Québec Network for Research on Protein, Function, Engineering and Applications, Québec, QC G1V 0A6, Canada
- CGCC, Center in Green Chemistry and Catalysis, Montréal, QC H3A 0B8, Canada
| | - Alexis Bonneau-Burke
- The Québec Network for Research on Protein, Function, Engineering and Applications, Québec, QC G1V 0A6, Canada
- CGCC, Center in Green Chemistry and Catalysis, Montréal, QC H3A 0B8, Canada
- Chemistry Department, Université de Montréal, Montréal, QC H2V 0B3, Canada
| | - Janine N. Copp
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Joelle N. Pelletier
- Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, QC H3T 1J4, Canada
- The Québec Network for Research on Protein, Function, Engineering and Applications, Québec, QC G1V 0A6, Canada
- CGCC, Center in Green Chemistry and Catalysis, Montréal, QC H3A 0B8, Canada
- Chemistry Department, Université de Montréal, Montréal, QC H2V 0B3, Canada
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12
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Zhang L, Zhang A, Yang Y, Zhang C, Lian K, Liu C. Structure and function response of bacterial communities towards antibiotic contamination in hyporheic zone sediments. CHEMOSPHERE 2022; 309:136606. [PMID: 36174729 DOI: 10.1016/j.chemosphere.2022.136606] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Bacterial communities are crucial for processing and degrading contaminants in hyporheic zones (HZ). However, the effects of antibiotics on HZ bacterial communities have seldom been addressed. Here, using MiSeq 16S amplicon sequencing technology, the effects of acute exposure to Enrofloxacin, Sulfathiazole, Tetracycline hydrochloride, and Penicillin V potassium on HZ bacterial communities were investigated. Results revealed that HZ sediment communities responded differently to different classes of antibiotics, reflecting the distinct selection stress of antibiotics on HZ bacterial communities. Besides, HZ communities from the locations with more severe antibiotic contamination backgrounds (∼150 μg kg-1) were more resistant towards antibiotic treatment. Compared with small/non-significant changes in HZ community diversity and composition treated with ng L-1∼ug L-1 level antibiotics compared to the control group, treatments with antibiotics over mg L-1 level significantly reduced the diversity and changed the structures of HZ bacterial communities, and enhanced the resistance of the community to antibiotics by enriching antibiotic resistant bacteria. The exposure to mg L-1 level antibiotics also changed community functions by restricting the growth of functional bacteria, such as ammonia oxidizing bacteria (AOB) Nitrosomonas, resulting in ammonia accumulation in sediments. The results implied that at field-relevant concentrations, there was no or minor effect of antibiotics on HZ bacterial community structure and functions, and only those areas with high antibiotic concentrations would have effects.
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Affiliation(s)
- Lili Zhang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Antai Zhang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yitong Yang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Cheng Zhang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Keting Lian
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Chongxuan Liu
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
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13
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Huang Y, Wang F, Li Y, Yue C, Zhang Y, Zhou P, Mu J. Influence of anthropogenic disturbances on antibiotic resistance gene distributions along the Minjiang River in Southeast China. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 323:116154. [PMID: 36095989 DOI: 10.1016/j.jenvman.2022.116154] [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: 06/06/2022] [Revised: 08/03/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
River-reservoir systems have become ubiquitous among modern global aquatic environments due to the widespread construction of dams. However, little is known of antibiotic resistance gene (ARG) distributions in reservoir-river systems experiencing varying degrees of anthropogenic impacts. Here, the diversity, abundance, and spatial distribution of ARGs were comprehensively characterized along the main stem of the Minjiang River, a typical subtropic reservoir-river system in Southeast China using high-throughput quantitative PCR. A total of 252 ARG subtypes were detected from twelve sampling sites that were dominated by aac(3)-Via, followed by czcA, blaTEM, and sul1. Urban river waters (sites S9-S12) harbored more diverse ARGs than did the reservoir waters (sites S1-S7), indicating more serious antibiotic resistance pollution in areas with larger population densities. Dam construction could reduce the richness and absolute abundance of ARGs from upstream (site S7) to downstream (site S8). Urban river waters also harbored a higher proportion of mobile genetic elements (MGEs), suggesting that intensive human activities may promote ARG horizontal gene transfers. The mean relative abundance of Proteobacteria that could promote antibiotic resistance within microbial communities was also highest in urban river waters. Variance partitioning analysis indicated that MGEs and bacterial communities could explain 67.33%, 44.7%, and 90.29% of variation in selected ARGs for the entire watershed, aquaculture waters, and urban river waters, respectively. These results further suggest that urban rivers are ideal media for the acquisition and spread of ARGs. These findings provide new insights into the occurrence and potential mechanisms determining the distributions of ARGs in a reservoir-river system experiencing various anthropogenic disturbances at the watershed scale.
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Affiliation(s)
- Yaling Huang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Feipeng Wang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Yue Li
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China; College Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Chen Yue
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China; College Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yuting Zhang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Pei Zhou
- Xiamen Urban Planning & Design Institute Co, LTD, Xiamen, 361012, China
| | - Jingli Mu
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China.
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14
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An Overview of the Impact of Pharmaceuticals on Aquatic Microbial Communities. Antibiotics (Basel) 2022; 11:antibiotics11121700. [PMID: 36551357 PMCID: PMC9774725 DOI: 10.3390/antibiotics11121700] [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: 11/07/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Pharmaceuticals are present as pollutants in several ecosystems worldwide. Despite the reduced concentrations at which they are detected, their negative impact on natural biota constitutes a global concern. The consequences of pharmaceuticals' presence in water sources and food have been evaluated with a higher detail for human health. However, although most of the pharmaceuticals detected in the environment had not been designed to act against microorganisms, it is of utmost importance to understand their impact on the environmental native microbiota. Microbial communities can suffer serious consequences from the presence of pharmaceuticals as pollutants in the environment, which may directly impact public health and ecosystem equilibrium. Among this class of pollutants, the ones that have been studied in more detail are antibiotics. This work aims to provide an overview of the impacts of different pharmaceuticals on environmental biofilms, more specifically in biofilms from aquatic ecosystems and engineered water systems. The alterations caused in the biofilm function and characteristics, as well as bacteria antimicrobial tolerance and consequently the associated risks for public health, are also reviewed. Despite the information already available on this topic, the need for additional data urges the assessment of emerging pollutants on microbial communities and the potential public health impacts.
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15
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Fast and highly efficient liquid chromatographic methods for qualification and quantification of antibiotic residues from environmental waste. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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García LA, Torres C, López AR, Rodríguez CO, Valencia CS. Antimicrobial Resistance of Enterococcus Species Isolated from Wild Mammals in Aragón, Spain. J Vet Res 2022; 66:151-159. [PMID: 35892100 PMCID: PMC9281524 DOI: 10.2478/jvetres-2022-0020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 04/04/2022] [Indexed: 11/20/2022] Open
Abstract
Introduction Antimicrobial resistance is currently one of the major public health threats. In order to prevent its spread, the WHO, OIE and FAO have formed an alliance to promote the study of antibiotic resistance evolution in human, animal and environmental bacteria posing a public health threat; however, the studies performed in wild animals are scarce so far. The main objective of this study was to assess the antibiotic resistance of Enterococcus spp. isolated from wild mammals in Aragón, Spain. Material and Methods Rectal samples were collected from 103 wild mammals - 70 hunt prey and 33 rescued animals. Isolates were identified by matrix-assisted laser desorption/ionisation-time of flight mass spectrometry and susceptibility tests to 10 antibiotics were also carried out. Statistical analysis was performed (P ≤ 0.05). Results A total of 126 isolates of seven different Enterococcus species were recovered. Among them, E faecalis (37.60%), E. casseliflavus (20.63%) and E. faecium (17.46%) were the most prevalent. The antibiotics quinupristin-dalfopristin and ciprofloxacin most frequently lost efficacy against the isolates. Multi-drug resistance was more prevalent in enterococci isolated from the rescued mammals. Conclusion This study found resistance widely distributed among enterococci isolated from the studied mammals. This points to the need for additional study of its genetic determinants and investigation of the sources and measures to avoid contributory environmental contamination.
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Affiliation(s)
- Leticia Alcalá García
- Department of Animal Pathology, Infectious Diseases and Epidemiology, Veterinary Faculty of Zaragoza, 50013, Zaragoza, Spain
| | - Carmen Torres
- Department of Food and Agriculture, Area of Biochemistry and Molecular Biology, University of La Rioja, 26006, Logroño, Spain
| | - Antonio Rezusta López
- Microbiology Service, Hospital Miguel Servet, IIS Aragón, Universidad de Zaragoza, 50009, Zaragoza, Spain
| | - Carmelo Ortega Rodríguez
- Department of Animal Pathology, Infectious Diseases and Epidemiology, Veterinary Faculty of Zaragoza, 50013, Zaragoza, Spain
| | - Carmen Simón Valencia
- Department of Animal Pathology, Infectious Diseases and Epidemiology, Veterinary Faculty of Zaragoza, 50013, Zaragoza, Spain
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17
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Zhang L, Ji L, Liu X, Zhu X, Ning K, Wang Z. Linkage and driving mechanisms of antibiotic resistome in surface and ground water: Their responses to land use and seasonal variation. WATER RESEARCH 2022; 215:118279. [PMID: 35305488 DOI: 10.1016/j.watres.2022.118279] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/24/2022] [Accepted: 03/08/2022] [Indexed: 06/14/2023]
Abstract
Antibiotic resistance in the environment, mostly mediated by antibiotic resistance genes (ARGs), has posed a threat to ecological and human health. Contamination of surface water and groundwater with ARGs has become a serious environmental concern. However, the distinctions and similarities across ARG profiles, the various ecological processes associated with ARGs, the driving mechanisms for ARG profiles in surface water and groundwater, and how they respond to land use and seasonal variation remain unknown. To tackle these issues, the contamination of ARGs in surface water and groundwater in central China was investigated using metagenomic technology. The results indicated that seasonal changes in ARG abundance and diversity were inconsistent across surface water and groundwater, and that the relationship between ARGs in surface water and groundwater was stronger during the rainy season. Land use had a greater effect on ARGs in surface water than in groundwater and was stronger during the dry season than during the rainy season. More interestingly, the ideal buffer zones with the greatest impact of land use on the ARGs of surface water and groundwater had distinct radii: 1500 m for both dry and rainy seasons in surface water, and 1000 m for dry season and 500 m for rainy season in groundwater. Furthermore, stochastic mechanisms mediated by mobile gene elements (MGEs) contribute significantly more to ARG assemblages than deterministic processes, particularly in groundwater. Furthermore, our results also showed that ARG enrichment in microbial communities was host- dependent, and the risk of ARGs in groundwater was greater both during the rainy season and dry season. In conclusion, the findings have improved our understanding of the relationship and driving mechanisms of ARGs in surface and ground water, as well as their responses to land use and seasonal variation, which may be beneficial for limiting ARG pollution in a watershed with high levels of anthropogenic activity.
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Affiliation(s)
- Lu Zhang
- Key Laboratory for Environment and Disaster Monitoring and Evaluation of Hubei, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430077, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Ji
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Hubei Key Laboratory of Bioinformatics and Molecular-imaging, Center of AI Biology, Department of Bioinformatics and Systems Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Xi Liu
- Key Laboratory for Environment and Disaster Monitoring and Evaluation of Hubei, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430077, China; Ecological Environment Monitoring and Scientific Research Center, Yangtze River Basin Ecological Environment Supervision and Administration Bureau, Ministry of Ecological Environment, Wuhan 430010, China
| | - Xue Zhu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Hubei Key Laboratory of Bioinformatics and Molecular-imaging, Center of AI Biology, Department of Bioinformatics and Systems Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Kang Ning
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Hubei Key Laboratory of Bioinformatics and Molecular-imaging, Center of AI Biology, Department of Bioinformatics and Systems Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
| | - Zhi Wang
- Key Laboratory for Environment and Disaster Monitoring and Evaluation of Hubei, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430077, China.
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18
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Huo X, Wang Z, Xiao X, Yang C, Su J. Nanopeptide CMCS-20H loaded by carboxymethyl chitosan remarkably enhances protective efficacy against bacterial infection in fish. Int J Biol Macromol 2022; 201:226-241. [PMID: 34995671 DOI: 10.1016/j.ijbiomac.2021.12.172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 12/10/2021] [Accepted: 12/27/2021] [Indexed: 01/21/2023]
Affiliation(s)
- Xingchen Huo
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China; Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhensheng Wang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Xun Xiao
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Chunrong Yang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianguo Su
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China; Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China.
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19
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Isolation of Jannaschia sedimins sp. nov. from East Coast of China: Bacterial Taxonomy and Antimicrobial Resistance Analysis. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12062883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A Gram-stain-negative, facultatively aerobic, pink and oval bacterium, designed OS4T, was isolated from a sediment sample taken from a coastal zone in China. The growth of OS4T occurred at 20–37 °C (optimal 25 °C), pH 7.0–8.5 (optimal pH 8.0), in 0–5.0% (w/v) NaCl (optimal 2.0%). According to the phylogenetic analysis, strain OS4T showed the highest sequence similarity (96.04%) with Jannaschia aquimarina GSW-M26T and shared 94.98% similarity with the type species of genus Jannaschia-strain J. helgolandensis 14858T. Chemotaxonomic analysis showed that the sole respiratory quinone was ubiquinone 10, and the major fatty acids (>5.0%) included C18:1 ω6c/ω7c, C18:0, and C10:0 3OH. The polar lipids consist of three phospholipids, two unknown amino-lipids, and four unknown glycerolipids. The DNA G + C content was 72.7 mol%. Based on the evidence presented in this study, strain OS4T represents a novel species of the genus Jannaschia, for which the name Jannaschia sedimins sp. nov. is proposed. The type strain is OS4T (=KCTC 82508T = MCCC 1K03755T). Both the phenotypic and the genetic analysis on the antimicrobial resistance genes indicate that OS4T is resistant to a wide range of classes of antibiotics, which highlights that the ocean could potentially serve as the natural reservoir of antimicrobial resistance genes.
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20
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Atta AH, Atta SA, Nasr SM, Mouneir SM. Current perspective on veterinary drug and chemical residues in food of animal origin. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:15282-15302. [PMID: 34981398 DOI: 10.1007/s11356-021-18239-y] [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: 07/16/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
The marked increase in the demand for animal protein of high quality necessitates protecting animals from infectious diseases. This requires increasing the use of veterinary therapeutics. The overuse and misuse of veterinary products can cause a risk to human health either as short-term or long-term health problems. However, the biggest problem is the emergence of resistant strains of bacteria or parasites. This is in addition to economic losses due to the discarding of polluted milk or condemnation of affected carcasses. This paper discusses three key points: possible sources of drug and chemical residues, human health problems, and the possible method of control and prevention of veterinary drug residues in animal products.
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Affiliation(s)
- Attia H Atta
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Shimaa A Atta
- Immunology Department, Theodor Bilharz Research Institute, Giza, 12411, Egypt
| | - Soad M Nasr
- Department of Parasitology & Animal Diseases, National Research Centre, 33 Bohouth St., Dokki, Giza, 12622, Egypt
| | - Samar M Mouneir
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
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21
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Innes GK, Markos A, Dalton KR, Gould CA, Nachman KE, Fanzo J, Barnhill A, Frattaroli S, Davis MF. How animal agriculture stakeholders define, perceive, and are impacted by antimicrobial resistance: challenging the Wellcome Trust's Reframing Resistance principles. AGRICULTURE AND HUMAN VALUES 2021; 38:893-909. [PMID: 34776605 PMCID: PMC8588841 DOI: 10.1007/s10460-021-10197-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/22/2021] [Indexed: 05/22/2023]
Abstract
Humans, animals, and the environment face a universal crisis: antimicrobial resistance (AR). Addressing AR and its multi-disciplinary causes across many sectors including in human and veterinary medicine remains underdeveloped. One barrier to AR efforts is an inconsistent process to incorporate the plenitude of stakeholders about what AR is and how to stifle its development and spread-especially stakeholders from the animal agriculture sector, one of the largest purchasers of antimicrobial drugs. In 2019, The Wellcome Trust released Reframing Resistance: How to communicate about antimicrobial resistance effectively (Reframing Resistance), which proposed the need to establish a consistent and harmonized messaging effort that describes the AR crisis and its global implications for health and wellbeing across all stakeholders. Yet, Reframing Resistance does not specifically engage the animal agriculture community. This study investigates the gap between two principles recommended by Reframing Resistance and animal agriculture stakeholders. For this analysis, the research group conducted 31 semi-structured interviews with a diverse group of United States animal agriculture stakeholders. Participants reported attitudes, beliefs, and practices about a variety of issues, including how they defined AR and what entities the AR crisis impacts most. Exploration of Reframing Resistance's Principle 2, "explain the fundamentals succinctly" and Principle 3, "emphasis that this is universal issue; it can affect anyone, including you" reveals disagreement in both the fundamentals of AR and consensus of "who" the AR crisis impacts. Principle 2 may do better to acknowledge that animal agriculture stakeholders espouse a complex array of perspectives that cannot be summed up in a single perspective or principle. As a primary tool to combat AR, behavior change must be accomplished first through outreach to stakeholder groups and understanding their perspectives.
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Affiliation(s)
- Gabriel K. Innes
- Environmental Health and Engineering, John Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
| | - Agnes Markos
- Environmental Health and Engineering, John Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
| | - Kathryn R. Dalton
- Environmental Health and Engineering, John Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
| | - Caitlin A. Gould
- Environmental Health and Engineering, John Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
- Environmental Health and Engineering, 1305 Delafield Pl NW, Washington, DC 20011, USA
| | - Keeve E. Nachman
- Environmental Health and Engineering, John Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
| | - Jessica Fanzo
- John Hopkins Berman Institute of Bioethics, 1809 Ashland Avenue, Baltimore, MD 21205, USA
- Berman Institute of Bioethics, Nitze School of Advanced International Studies (SAIS) and Bloomberg School of Public Health, Johns Hopkins University, 1717 Massachusetts Ave NW 730, Washington, DC 20036, USA
| | - Anne Barnhill
- John Hopkins Berman Institute of Bioethics, 1809 Ashland Avenue, Baltimore, MD 21205, USA
| | - Shannon Frattaroli
- Environmental Health and Engineering, John Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
- Department of Health Policy and Management, The Johns Hopkins Bloomberg School of Public Health, 624 North Broadway, Baltimore, MD 21205, USA
| | - Meghan F. Davis
- Environmental Health and Engineering, John Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., Baltimore, MD 21205, USA
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22
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Regina ALA, Medeiros JD, Teixeira FM, Côrrea RP, Santos FAM, Brantes CPR, Pereira IA, Stapelfeldt DMA, Diniz CG, da Silva VL. A watershed impacted by anthropogenic activities: Microbial community alterations and reservoir of antimicrobial resistance genes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 793:148552. [PMID: 34328962 DOI: 10.1016/j.scitotenv.2021.148552] [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: 03/20/2021] [Revised: 06/04/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
Water is the main resource for maintaining life. Anthropic activities influence the microbial epidemiological chain in watersheds, which can act as ways of disseminating microorganisms resistant to antimicrobial drugs, with impacts on human, animal, and environmental health. Here, we characterized aquatic microbial communities and their resistomes in samples collected along Rio das Ostras watershed during two seasons. Surface water samples were collected at eleven sites from the Jundiá, Iriry, and Rio das Ostras rivers in two seasons (dry and wet season). Microbial DNA was extracted, high-throughput sequenced and screened for antimicrobial resistance genetic (ARG) markers. The physicochemical characteristics and the microbiota data confirmed that Rio das Ostras watershed can be divided into three well defined portions: rural, urban, and marine. Rural areas were enriched by bacteria typically found in limnic environments and Patescibacteria phyla. The urban portion was characterized by sites with low pH and groups associated with iron oxidation. Some genera of clinical relevance were also identified, though in relatively low abundance. The marine site was enriched mainly by Cyanobacteria and bacteria that showed strong correlation with conductivity, salinity, and chloride. Twenty-six ARG markers were identified on the resistome, being found most frequently in the urban area, despite being present in rural sites. Among them were some related to classes of great clinical concern, such as genes coding for extended-spectrum beta-lactamase (blaCTX-M and blaTEM), resistance to carbapenems (blaKPC) and to methicillin by Staphylococcus aureus (mecA). These results broaden our understanding of the microbial community of a watershed impacted by anthropogenic actions. The large number of ARGs detected along the Rio das Ostras watershed contrasts with the small number of microorganisms of clinical relevance observed, suggesting that antimicrobial resistance has arisen from non-clinical environments and microbes. Our results corroborate that freshwater acts as a reservoir of antimicrobial resistance genes.
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Affiliation(s)
- Ana Luísa Almeida Regina
- Department of Parasitology, Microbiology and Immunology, Institute of Biological Sciences, Federal University of Juiz de Fora - UFJF, José Lourenço Kelmer, Martelos, CEP 36036-900 Juiz de Fora, MG, Brazil
| | - Julliane Dutra Medeiros
- Department of Parasitology, Microbiology and Immunology, Institute of Biological Sciences, Federal University of Juiz de Fora - UFJF, José Lourenço Kelmer, Martelos, CEP 36036-900 Juiz de Fora, MG, Brazil; Faculty of Biological and Agricultural Sciences, Mato Grosso State University - UNEMAT, Perimetral Rogério Silva - Norte 2, CEP 78580-000 Alta Floresta, MT, Brazil
| | - Francisco Martins Teixeira
- Laboratory of Microbiology and Parasitology, Federal University of Rio de Janeiro - UFRJ, Macaé Campus, Aloísio da Silva Gomes, Granja dos Cavaleiros, CEP 27930-560 Macaé, RJ, Brazil
| | - Raíssa Pereira Côrrea
- Laboratory of Microbiology and Parasitology, Federal University of Rio de Janeiro - UFRJ, Macaé Campus, Aloísio da Silva Gomes, Granja dos Cavaleiros, CEP 27930-560 Macaé, RJ, Brazil
| | - Fernanda Almeida Maciel Santos
- Laboratory of Microbiology and Parasitology, Federal University of Rio de Janeiro - UFRJ, Macaé Campus, Aloísio da Silva Gomes, Granja dos Cavaleiros, CEP 27930-560 Macaé, RJ, Brazil
| | - Caique Pinheiro Rosa Brantes
- Laboratory of Microbiology and Parasitology, Federal University of Rio de Janeiro - UFRJ, Macaé Campus, Aloísio da Silva Gomes, Granja dos Cavaleiros, CEP 27930-560 Macaé, RJ, Brazil
| | - Ingrid Annes Pereira
- Laboratory of Food Microbiology, Federal University of Rio de Janeiro - UFRJ, Macaé Campus, Aloísio da Silva Gomes, Granja dos Cavaleiros, CEP 27930-560, Macaé, RJ, Brazil
| | - Danielle Marques Araújo Stapelfeldt
- Laboratory of Chemistry, Federal University of Rio de Janeiro - UFRJ, Macaé Campus, Aloísio da Silva Gomes, Granja dos Cavaleiros, CEP 27930-560 Macaé, RJ, Brazil
| | - Cláudio Galuppo Diniz
- Department of Parasitology, Microbiology and Immunology, Institute of Biological Sciences, Federal University of Juiz de Fora - UFJF, José Lourenço Kelmer, Martelos, CEP 36036-900 Juiz de Fora, MG, Brazil
| | - Vânia Lúcia da Silva
- Department of Parasitology, Microbiology and Immunology, Institute of Biological Sciences, Federal University of Juiz de Fora - UFJF, José Lourenço Kelmer, Martelos, CEP 36036-900 Juiz de Fora, MG, Brazil.
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23
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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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24
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Dewi DAR, Thomas T, Ahmad Mokhtar AM, Mat Nanyan NS, Zulfigar SB, Salikin NH. Carbapenem Resistance among Marine Bacteria-An Emerging Threat to the Global Health Sector. Microorganisms 2021; 9:microorganisms9102147. [PMID: 34683467 PMCID: PMC8537846 DOI: 10.3390/microorganisms9102147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/08/2021] [Accepted: 10/10/2021] [Indexed: 01/24/2023] Open
Abstract
The emergence of antibiotic resistance among pathogenic microorganisms is a major issue for global public health, as it results in acute or chronic infections, debilitating diseases, and mortality. Of particular concern is the rapid and common spread of carbapenem resistance in healthcare settings. Carbapenems are a class of critical antibiotics reserved for treatment against multidrug-resistant microorganisms, and resistance to this antibiotic may result in limited treatment against infections. In addition to in clinical facilities, carbapenem resistance has also been identified in aquatic niches, including marine environments. Various carbapenem-resistant genes (CRGs) have been detected in different marine settings, with the majority of the genes incorporated in mobile genetic elements, i.e., transposons or plasmids, which may contribute to efficient genetic transfer. This review highlights the potential of the marine environment as a reservoir for carbapenem resistance and provides a general overview of CRG transmission among marine microbes.
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Affiliation(s)
- Dewa A.P. Rasmika Dewi
- School of Medicine, International University of Health and Welfare, Narita 286-8686, Japan;
- Faculty of Medicine and Health Sciences, Udayana University, Bali 80232, Indonesia
| | - Torsten Thomas
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney 2052, Australia;
| | - Ana Masara Ahmad Mokhtar
- School of Industrial Technology, Universiti Sains Malaysia, Gelugor 11800, Penang, Malaysia; (A.M.A.M.); (N.S.M.N.); (S.B.Z.)
| | - Noreen Suliani Mat Nanyan
- School of Industrial Technology, Universiti Sains Malaysia, Gelugor 11800, Penang, Malaysia; (A.M.A.M.); (N.S.M.N.); (S.B.Z.)
| | - Siti Balqis Zulfigar
- School of Industrial Technology, Universiti Sains Malaysia, Gelugor 11800, Penang, Malaysia; (A.M.A.M.); (N.S.M.N.); (S.B.Z.)
| | - Nor Hawani Salikin
- School of Industrial Technology, Universiti Sains Malaysia, Gelugor 11800, Penang, Malaysia; (A.M.A.M.); (N.S.M.N.); (S.B.Z.)
- Correspondence: ; Tel.: +60-4-653-2241
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25
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Wang H, Xi H, Xu L, Jin M, Zhao W, Liu H. Ecotoxicological effects, environmental fate and risks of pharmaceutical and personal care products in the water environment: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 788:147819. [PMID: 34029823 DOI: 10.1016/j.scitotenv.2021.147819] [Citation(s) in RCA: 130] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 05/12/2021] [Accepted: 05/12/2021] [Indexed: 05/07/2023]
Abstract
Due to the extensive use and incomplete removal, pharmaceutical and personal care products (PPCPs) are introduced into the water continuously. It has been proved that the unique properties of PPCPs are influential to organisms and the environment, and gradually affect human health. In this paper, the toxicological effects of typical PPCPs, and the environmental behavior of PPCPs in aquatic are reviewed. The risk assessments of PPCPs in the water are summarized. The research directions of environmental toxicology research of PPCPs in the future are proposed. Many PPCPs were found to be toxic or even highly toxic toward aquatic organisms, and have the potential for bioaccumulation. It is essential to study the acute and long-term toxicity of PPCPs and their metabolites, evaluate the environmental behaviors and make a reasonable assessment of ecotoxicology and human health risks of PPCPs.
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Affiliation(s)
- Huan Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China
| | - Hao Xi
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China
| | - Linling Xu
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China
| | - Mingkang Jin
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China
| | - Wenlu Zhao
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China
| | - Huijun Liu
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China.
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26
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Palencia-Gándara C, Getino M, Moyano G, Redondo S, Fernández-López R, González-Zorn B, de la Cruz F. Conjugation Inhibitors Effectively Prevent Plasmid Transmission in Natural Environments. mBio 2021; 12:e0127721. [PMID: 34425705 PMCID: PMC8406284 DOI: 10.1128/mbio.01277-21] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 07/26/2021] [Indexed: 11/20/2022] Open
Abstract
Plasmid conjugation is a major route for the spread of antibiotic resistance genes. Inhibiting conjugation has been proposed as a feasible strategy to stop or delay the propagation of antibiotic resistance genes. Several compounds have been shown to be conjugation inhibitors in vitro, specifically targeting the plasmid horizontal transfer machinery. However, the in vivo efficiency and the applicability of these compounds to clinical and environmental settings remained untested. Here we show that the synthetic fatty acid 2-hexadecynoic acid (2-HDA), when used as a fish food supplement, lowers the conjugation frequency of model plasmids up to 10-fold in controlled water microcosms. When added to the food for mice, 2-HDA diminished the conjugation efficiency 50-fold in controlled plasmid transfer assays carried out in the mouse gut. These results demonstrate the in vivo efficiency of conjugation inhibitors, paving the way for their potential application in clinical and environmental settings. IMPORTANCE The spread of antibiotic resistance is considered one of the major threats for global health in the immediate future. A key reason for the speed at which antibiotic resistance spread is the ability of bacteria to share genes with each other. Antibiotic resistance genes harbored in plasmids can be easily transferred to commensal and pathogenic bacteria through a process known as bacterial conjugation. Blocking conjugation is thus a potentially useful strategy to curtail the propagation of antibiotic resistance. Conjugation inhibitors (COINS) are a series of compounds that block conjugation in vitro. Here we show that COINS efficiently block plasmid transmission in two controlled natural environments, water microcosms and the mouse gut. These observations indicate that COIN therapy can be used to prevent the spread of antibiotic resistance.
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Affiliation(s)
- Carolina Palencia-Gándara
- Institute of Biomedicine and Biotechnology of Cantabria (IBBTEC), University of Cantabria. Santander, Spain
| | - María Getino
- Institute of Biomedicine and Biotechnology of Cantabria (IBBTEC), University of Cantabria. Santander, Spain
| | - Gabriel Moyano
- Department of Animal Health, Veterinary Faculty, Complutense University of Madrid. Madrid, Spain
- Centro de Vigilancia Sanitaria Veterinaria (VISAVET), Veterinary Faculty, Complutense University of Madrid. Madrid, Spain
| | - Santiago Redondo
- Institute of Biomedicine and Biotechnology of Cantabria (IBBTEC), University of Cantabria. Santander, Spain
| | - Raúl Fernández-López
- Institute of Biomedicine and Biotechnology of Cantabria (IBBTEC), University of Cantabria. Santander, Spain
| | - Bruno González-Zorn
- Department of Animal Health, Veterinary Faculty, Complutense University of Madrid. Madrid, Spain
- Centro de Vigilancia Sanitaria Veterinaria (VISAVET), Veterinary Faculty, Complutense University of Madrid. Madrid, Spain
| | - Fernando de la Cruz
- Institute of Biomedicine and Biotechnology of Cantabria (IBBTEC), University of Cantabria. Santander, Spain
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Screening of New Potential Probiotics Strains against Photobacterium damselae Subsp. piscicida for Marine Aquaculture. Animals (Basel) 2021; 11:ani11072029. [PMID: 34359157 PMCID: PMC8300301 DOI: 10.3390/ani11072029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/20/2021] [Accepted: 07/05/2021] [Indexed: 11/16/2022] Open
Abstract
On intensive fish farms, 10% of the population dies exclusively from pathogens, and Photobacterium damselae subsp. Piscicida (Ph. damselae subsp. Piscicida), the bacteria causing pasteurellosis in marine aquaculture, is one of the major pathogens involved. The objective of this study was to obtain new probiotic strains against pasteurellosis in order to limit the use of chemotherapy, avoiding the environmental repercussions generated by the abusive use of these products. In this study, 122 strains were isolated from the gills and intestines of different marine fish species and were later evaluated in vitro to demonstrate the production of antagonistic effects, the production of antibacterial substances, adhesion and growth to mucus, resistance to bile and resistance to pH gradients, as well as its harmlessness and the dynamic of expression of immune-related genes by real-time PCR after administration of the potential probiotic in the fish diet. Only 1/122 strains showed excellent results to be considered as a potential probiotic strain and continue its characterization against Ph. damselae subsp. piscicida to determine its protective effect and elucidating in future studies its use as a possible probiotic strain for marine aquaculture.
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28
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Tsai MA, Chang CC, Li TH. Antimicrobial-resistance profiles of gram-negative bacteria isolated from green turtles (Chelonia mydas) in Taiwan. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 277:116870. [PMID: 33714128 DOI: 10.1016/j.envpol.2021.116870] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/25/2021] [Accepted: 02/27/2021] [Indexed: 06/12/2023]
Abstract
The green turtle (Chelonia mydas) is listed as a globally endangered species and is vulnerable to anthropogenic threats, including environmental pollution. This study investigated the antimicrobial resistance of Gram-negative bacteria isolated from wild green turtles admitted to a sea turtle rehabilitation center in Taiwan. For this investigation, cloacal and nasal swab samples were collected from 28 green turtles between 2018 and 2020, from which a total of 47 Gram-negative bacterial isolates were identified. Among these, Vibrio spp. were the most dominant isolate (31.91%), and 89.36% of the 47 isolates showed resistance to at least one of 18 antimicrobial agents tested. Isolates resistant to one (6.38%), two (8.51%), and multiple (74.47%) antimicrobials were observed. The antimicrobial agents to which isolates showed the greatest resistance were penicillin (74.47%), followed by spiramycin, amoxicillin, and cephalexin. The antimicrobial-resistance profiles identified in this study provide useful information for the clinical treatment of sea turtles in rehabilitation facilities. The results of our study also imply that wild green turtles may be exposed to polluting effluents containing antimicrobials when the turtles traverse migratory corridors or forage in feeding habitats. To benefit sea turtle conservation, future research should focus on (1) how to prevent pollution from antimicrobials in major green turtle activity areas and (2) identifying sources of antimicrobial-resistant bacterial strains in coastal waters of Taiwan.
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Affiliation(s)
- Ming-An Tsai
- Department of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan; International Degree Program of Ornamental Fish Science and Technology, International College, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan.
| | - Chao-Chin Chang
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung, 40227, Taiwan.
| | - Tsung-Hsien Li
- National Museum of Marine Biology and Aquarium, Checheng, Pingtung, 94450, Taiwan.
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29
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Founou LL, Founou RC, Essack SY. Antimicrobial resistance in the farm-to-plate continuum: more than a food safety issue. Future Sci OA 2021; 7:FSO692. [PMID: 34046194 PMCID: PMC8147750 DOI: 10.2144/fsoa-2020-0189] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 02/10/2021] [Indexed: 12/25/2022] Open
Abstract
Antimicrobial resistance (AMR) threatens to reverse the essential benefits of antibiotics, not only in humans, where decades of advancements in healthcare outcomes are endangered, but also in the food production industry. As the world moves toward Sustainable Development Goals, food safety is a critical element to improve and strengthen global health, and ensure sustainable development. Emergence of AMR in the food production industry represents a serious risk for exposed workers, their relatives and consumers. This perspective presents the challenge of AMR through the lens of food safety, by highlighting its multisectoral and multidimensional implications not only on the Sustainable Development Goals for food safety and public health but also on food security, animal health and welfare, the environment and climate, and socioeconomic development.
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Affiliation(s)
- Luria L Founou
- Department of Food Safety & Environmental Microbiology, Centre of Expertise & Biological Diagnostic of Cameroon, Yaoundé, Cameroon
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
- Bioinformatics & Applied Machine Learning Research Unit, EDEN Foundation, Yaoundé, Cameroon
| | - Raspail C Founou
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
- AMR Insights Ambassador Network
| | - Sabiha Y Essack
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
- AMR Insights Ambassador Network
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30
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Sánchez-Baena AM, Caicedo-Bejarano LD, Chávez-Vivas M. Structure of Bacterial Community with Resistance to Antibiotics in Aquatic Environments. A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:2348. [PMID: 33673692 PMCID: PMC7957730 DOI: 10.3390/ijerph18052348] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/07/2021] [Accepted: 02/09/2021] [Indexed: 12/11/2022]
Abstract
Aquatic environments have been affected by the increase in bacterial resistant to antibiotics. The aim of this review is to describe the studies carried out in relation to the bacterial population structure and antibiotic resistance genes in natural and artificial water systems. We performed a systematic review based on the PRISMA guideline (preferred reporting items for systematic reviews and meta-analyzes). Articles were collected from scientific databases between January 2010 and December 2020. Sixty-eight papers meeting the inclusion criteria, i.e., "reporting the water bacterial community composition", "resistance to antibiotics", and "antibiotic resistance genes (ARG)", were evaluated according to pre-defined validity criteria. The results indicate that the predominant phyla were Firmicutes and Bacteroidetes in natural and artificial water systems. Gram-negative bacteria of the family Enterobacteraceae with resistance to antibiotics are commonly reported in drinking water and in natural water systems. The ARGs mainly reported were those that confer resistance to β-lactam antibiotics, aminoglycosides, fluoroquinolones, macrolides and tetracycline. The high influence of anthropogenic activity in the environment is evidenced. The antibiotic resistance genes that are mainly reported in the urban areas of the world are those that confer resistance to the antibiotics that are most used in clinical practice, which constitutes a problem for human and animal health.
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Affiliation(s)
- Ana María Sánchez-Baena
- Department of Natural Sciences, Exact and Statistics, Faculty of Basic Sciences, Campus Pampalinda, Universidad Santiago de Cali, Cali Calle 5 # 62-00, Colombia;
| | - Luz Dary Caicedo-Bejarano
- Department of Natural Sciences, Exact and Statistics, Faculty of Basic Sciences, Campus Pampalinda, Universidad Santiago de Cali, Cali Calle 5 # 62-00, Colombia;
| | - Mónica Chávez-Vivas
- Department of Biomedical Sciences, Faculty of Health, Campus Pampalinda, Universidad Santiago de Cali, Cali Calle 5 # 62-00, Colombia;
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Al-Rafyai HM, Alwash MS, Al-Khafaji NS. Quinolone resistance (qnrA) gene in isolates of Escherichia coli collected from the Al-Hillah River in Babylon Province, Iraq. PHARMACIA 2021. [DOI: 10.3897/pharmacia.68.e57819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Aquatic environment contamination remains a foremost global public health hazards, and symbolizes a significant reservoir of releasing antibiotic resistant bacteria. The survival of Escherichia coli in aquatic environments serves as a potential reservoir of antibiotic resistance, encompassing but not restricted to a plasmid-mediated quinolone resistance (PMQR) mechanism. The current study aimed to detect the presence of the PMQR-qnrA gene in quinolone-resistant E. coli isolates. Sixty-one waterborne E. coli with known phylogroups/subgroups isolated from the Al-Hillah River in Babylon Province, Iraq, were screened for the phenotypic resistance to third-generation quinolones (levofloxacin and ofloxacin) and were further analysed for the presence of the qnrA gene using polymerase chain reaction (PCR). Fifty-seven (93.4%) of 61 E. coli isolates were levofloxacin-resistant, and 55 (90.2%) were ofloxacin-resistant. Among the 57 quinolone-resistant E. coli, 40 (65.57%) isolates were found to carry the PMQR-qnrA gene. Among the 40 qnrA-positive E. coli, 22 (36.1%) isolates were in phylogroup B2, followed by 8 (13.1%) isolates in phylogroup D, 6 (9.8%) isolates in phylogroup B1, and 4 (6.6%) isolates in phylogroup A. The presence of the PMQR-qnrA gene in E. coli belonging to phylogroup B2 and D reflects the need for routine monitoring of antibiotic resistance genes (ARGs) in the Al-Hillah River.
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Zhang K, Xin R, Zhao Z, Li W, Wang Y, Wang Q, Niu Z, Zhang Y. Mobile genetic elements are the Major driver of High antibiotic resistance genes abundance in the Upper reaches of huaihe River Basin. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123271. [PMID: 32629348 DOI: 10.1016/j.jhazmat.2020.123271] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 06/16/2020] [Accepted: 06/20/2020] [Indexed: 05/12/2023]
Abstract
Rivers are considered a vital reservoir of antibiotic resistance genes (ARGs) and are critical to disseminate ARGs. The present study delved into the ARGs pollution of the sediments in the upper reaches of Huaihe river, one of the seven longest rivers in China, by high-throughput quantitative PCR. Subsequently, the relationship between ARGs and the bacterial community/mobile genetic elements (MGEs) was determined. As revealed from the results, the overall ARGs ranged from 2.65×10-3 to 6.14×10-2/16S copies, and the abundance of ARGs in the tributaries was significantly higher than that in the mainstreams (p<0.05). Moreover, the ARGs introduced by tributaries were capable of affecting the whole mainstream of Huaihe river. As suggested from the results of co-occurrence analysis and pRDA analysis, MGEs were reported as the major driver to disseminate ARGs in the upper reaches of Huaihe river basin. The larger the MGEs proportion, the higher the likelihood of ARGs transferring from antibiotic resistance bacteria to human pathogens in Huaihe river.
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Affiliation(s)
- Kai Zhang
- School of Geographic Sciences, Xinyang Normal University, Xinyang, 464000, China; Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution, Xinyang Normal University, Xinyang, 464000, China
| | - Rui Xin
- School of Marine Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Ze Zhao
- School of Marine Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Wenpeng Li
- School of Marine Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Yanan Wang
- School of Geographic Sciences, Xinyang Normal University, Xinyang, 464000, China; Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution, Xinyang Normal University, Xinyang, 464000, China
| | - Qian Wang
- School of Geographic Sciences, Xinyang Normal University, Xinyang, 464000, China; Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution, Xinyang Normal University, Xinyang, 464000, China
| | - Zhiguang Niu
- School of Marine Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Ying Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
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Chaturvedi P, Chaurasia D, Pandey A, Gupta P. Co-occurrence of multidrug resistance, β-lactamase and plasmid mediated AmpC genes in bacteria isolated from river Ganga, northern India. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 267:115502. [PMID: 32892014 DOI: 10.1016/j.envpol.2020.115502] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/16/2020] [Accepted: 08/20/2020] [Indexed: 05/29/2023]
Abstract
Wastewater effluents released in surface water provides suitable nutrient rich environment for the growth and proliferation of antibiotic resistant bacteria (ARB) and genes (ARG). Consequently, bacterial resistance has highly evolved over the recent years and diversified that each antibiotic class is inhibited by a distinct mechanism. In the present study, the prevalence of Multidrug resistant (MDR), extended spectrum β-lactamases (ESBL) and plasmid mediated Amp-C producing strains was analyzed in 28 surface water samples collected near domestic effluent discharge sites in river Ganga located across 11 different geographical indices of Uttar Pradesh, India. A total of 243 bacterial strains with different phenotypes were isolated. Among 243 isolates, 206 (84.77%) exhibited MDR trait displaying maximum resistance towards β-lactams (P = 78.19%; AMX = 72.84%), glycopeptides (VAN = 32.92%; TEI = 79.42%), cephalosporins (CF = 67.90%; CFX = 38.27%), and lincosamides (CD = 78.18%) followed by sulfonamide, macrolide and tetracycline. ESBL production was confirmed in 126 (51.85%) isolates that harbored the genes: blaTEM (95.24%), blaSHV (22.22%), blaOXA (11.90%) and blaCTX-M group (14.28%). The presence of plasmid mediated AmpC was detected only in 6.17% of isolates. The existence of such pathogenic strains in the open environment generates an urgent need for incorporating stringent measures to reduce the antibiotic consumption and hence its release.
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Affiliation(s)
- Preeti Chaturvedi
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India; Department of Biotechnology, National Institute of Technology-Raipur, G.E. Road, Raipur, 492010, Chhattisgarh, India.
| | - Deepshi Chaurasia
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India
| | - Ashok Pandey
- Centre for Innovation and Transnational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, 226001, Uttar Pradesh, India
| | - Pratima Gupta
- Department of Biotechnology, National Institute of Technology-Raipur, G.E. Road, Raipur, 492010, Chhattisgarh, India
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Mammo FK, Amoah ID, Gani KM, Pillay L, Ratha SK, Bux F, Kumari S. Microplastics in the environment: Interactions with microbes and chemical contaminants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 743:140518. [PMID: 32653705 DOI: 10.1016/j.scitotenv.2020.140518] [Citation(s) in RCA: 156] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/22/2020] [Accepted: 06/24/2020] [Indexed: 05/02/2023]
Abstract
Microplastics (MPs) are contaminants of emerging concern that have gained considerable attention during the last few decades due to their adverse impact on living organisms and the environment. Recent studies have shown their ubiquitous presence in the environment including the atmosphere, soil, and water. Though several reviews have focused on the occurrence of microplastics in different habitats, little attention has been paid to their interaction with biological and chemical pollutants in the environment. This review therefore presents the state of knowledge on the interaction of MPs with chemicals and microbes in different environments. The distribution of MPs, the association of toxic chemicals with MPs, microbial association with MPs and the microbial-induced fate of MPs in the environment are discussed. The biodegradation and bioaccumulation of MPs by and in microbes and its potential impact on the food chain are also reviewed. The mechanisms driving these interactions and how these, in turn, affect living organisms however are not yet fully understood and require further attention.
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Affiliation(s)
- F K Mammo
- Institute for Water and Wastewater Treatment, Durban University of Technology, P.O. Box 1334, Durban 4000, South Africa
| | - I D Amoah
- Institute for Water and Wastewater Treatment, Durban University of Technology, P.O. Box 1334, Durban 4000, South Africa
| | - K M Gani
- Institute for Water and Wastewater Treatment, Durban University of Technology, P.O. Box 1334, Durban 4000, South Africa
| | - L Pillay
- Institute for Water and Wastewater Treatment, Durban University of Technology, P.O. Box 1334, Durban 4000, South Africa
| | - S K Ratha
- Institute for Water and Wastewater Treatment, Durban University of Technology, P.O. Box 1334, Durban 4000, South Africa
| | - F Bux
- Institute for Water and Wastewater Treatment, Durban University of Technology, P.O. Box 1334, Durban 4000, South Africa
| | - S Kumari
- Institute for Water and Wastewater Treatment, Durban University of Technology, P.O. Box 1334, Durban 4000, South Africa.
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35
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Zhao R, Yu K, Zhang J, Zhang G, Huang J, Ma L, Deng C, Li X, Li B. Deciphering the mobility and bacterial hosts of antibiotic resistance genes under antibiotic selection pressure by metagenomic assembly and binning approaches. WATER RESEARCH 2020; 186:116318. [PMID: 32871290 DOI: 10.1016/j.watres.2020.116318] [Citation(s) in RCA: 144] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/15/2020] [Accepted: 08/18/2020] [Indexed: 05/21/2023]
Abstract
The presence of antibiotics can exert significant selection pressure on the emergence and spread of antibiotic resistance genes (ARGs) and antibiotic resistant bacteria (ARB). However, co-selection effects for ARGs, the mobility of ARGs and the identification of ARG hosts under high antibiotic selection pressures are poorly understood. Here, metagenomic assembly and binning approaches were used to comprehensively decipher the prevalence of ARGs and their potential mobility and hosts in activated sludge reactors treating antibiotic production wastewater. We found the abundance of different ARG types in antibiotic treatments varied greatly and certain antibiotic pressure promoted the co-selection for the non-corresponding types of ARGs. Antibiotic selection pressures significantly increased the abundance and proportions of ARGs mediated by plasmids (57.9%), which were more prevalent than those encoded in chromosomes (19.2%). The results indicated that plasmids and chromosomes had a tendency to carry different types of ARGs. Moreover, higher co-occurrence frequency of ARGs and MGEs revealed that antibiotics enhanced the mobility potential of ARGs mediated by both plasmids and integrative and conjugative elements. Among the 689 metagenome-assembled genomes (MAGs) with high estimated quality, 119 MAGs assigning to nine bacterial phyla were identified as the ARG hosts and 33 MAGs exhibited possible multi-resistance to antibiotics. Some ARG types tended to be carried by certain bacteria (e.g. bacitracin resistance genes carried by the family Burkholderiaceae) and thus showed a pronounced host-specific pattern. This study enhances the understanding of the mobility and hosts of ARGs and provides important insights into the risk assessment and management of antibiotic resistance.
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Affiliation(s)
- Renxin Zhao
- Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource Recovery, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Ke Yu
- School of Environment and Energy, Shenzhen Graduate School, Peking University, Shenzhen 518055, China
| | - Jiayu Zhang
- Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource Recovery, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Guijuan Zhang
- Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Jin Huang
- Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource Recovery, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Liping Ma
- Shanghai Key Laboratory for Urban Ecological Process and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Chunfang Deng
- School of Environment and Energy, Shenzhen Graduate School, Peking University, Shenzhen 518055, China
| | - Xiaoyan Li
- Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource Recovery, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; Shenzhen Environmental Science and New Energy Laboratory, Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen 518055, China
| | - Bing Li
- Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource Recovery, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.
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36
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Peng F, Guo Y, Isabwe A, Chen H, Wang Y, Zhang Y, Zhu Z, Yang J. Urbanization drives riverine bacterial antibiotic resistome more than taxonomic community at watershed scale. ENVIRONMENT INTERNATIONAL 2020; 137:105524. [PMID: 32036121 DOI: 10.1016/j.envint.2020.105524] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 12/26/2019] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
Although the occurrence and distribution of antibiotic resistance genes (ARGs) in various aquatic ecosystems are well explored, understanding of the ecological processes and mechanisms governing the composition and dynamics of bacterial ARGs still remains limited across space and time. Here, we used high-throughput approaches to detect spatial patterns of bacterial ARGs and operational taxonomic units (OTUs) in an urbanizing subtropical watershed, Xiamen, southeast China over a five-year period. At watershed scale, the OTU profiles were undergoing a directional change, but the ARG profiles showed a high stability or stochastic change over time. Compared with the upstream and midstream, the richness, absolute abundance, normalized abundance and diversity of ARGs were significantly higher in the downstream waters. Our results revealed a clear rural-urban disparity in ARG and OTU profiles which were mainly governed by deterministic and stochastic assembly processes, respectively. With the increase of urban building area along the river, the ecological processes of ARG profiles shifted from stochastic to deterministic. In downstream waters, the bacterial ARG profiles were much more stable than bacterial OTUs. Further, our results indicated that both human-dominated environment (e.g., land use) and mobile genetic elements (MGEs) played an important role in shaping the ARG profiles and dynamics. Overall, this was a response to spatially extensive human-landscape interactions that included urban development in the river downstream region, which were common across subtropical coastal cities of China and can alter the ARG profile dynamics along rural-urban gradient. Therefore, watershed management actions aiming at reducing threats posed by ARGs in urbanizing watershed should first consider the surrounding urbanization level and the mode and intensity of human activity. Our findings also imply that due to the decoupling of bacterial function and taxonomy, both aspects should be studied separately.
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Affiliation(s)
- Feng Peng
- Aquatic EcoHealth Group, Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunyan Guo
- Aquatic EcoHealth Group, Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Alain Isabwe
- Aquatic EcoHealth Group, Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huihuang Chen
- Aquatic EcoHealth Group, Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yongming Wang
- Aquatic EcoHealth Group, Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yanping Zhang
- Aquatic EcoHealth Group, Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; College of Environment and Ecology, Xiamen University, Xiamen 361102, China
| | - Zhenxiang Zhu
- Aquatic EcoHealth Group, Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Jun Yang
- Aquatic EcoHealth Group, Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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37
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Squadrone S. Water environments: metal-tolerant and antibiotic-resistant bacteria. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:238. [PMID: 32173770 DOI: 10.1007/s10661-020-8181-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 02/28/2020] [Indexed: 05/19/2023]
Abstract
The potential threat of both metals and antibiotics to the environment and human health has raised significant concerns in the last decade. Metal-resistant and antibiotic-resistant bacteria are found in most environments, including water, and the risk posed to humans and animals due to the spread of antibiotic-resistant bacteria and antibiotic-resistant genes in the environment is increasing. Bacteria have developed the ability to tolerate metals even at notable concentrations. This ability tends to favor the selection of antibiotic-resistant strains, even in pristine water environments, with the potential risk of spreading this resistance to human pathogens. In this mini-review, we focus on investigations performed in marine and freshwater environments worldwide, highlighting the presence of co-resistance to metals and antibiotics.
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Affiliation(s)
- Stefania Squadrone
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Via Bologna 148, 10154, Torino, Italy.
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38
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Squadrone S. Water environments: metal-tolerant and antibiotic-resistant bacteria. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:238. [PMID: 32173770 DOI: 10.1007/s10661-020-8191-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 02/28/2020] [Indexed: 06/10/2023]
Abstract
The potential threat of both metals and antibiotics to the environment and human health has raised significant concerns in the last decade. Metal-resistant and antibiotic-resistant bacteria are found in most environments, including water, and the risk posed to humans and animals due to the spread of antibiotic-resistant bacteria and antibiotic-resistant genes in the environment is increasing. Bacteria have developed the ability to tolerate metals even at notable concentrations. This ability tends to favor the selection of antibiotic-resistant strains, even in pristine water environments, with the potential risk of spreading this resistance to human pathogens. In this mini-review, we focus on investigations performed in marine and freshwater environments worldwide, highlighting the presence of co-resistance to metals and antibiotics.
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Affiliation(s)
- Stefania Squadrone
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Via Bologna 148, 10154, Torino, Italy.
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39
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Andrade L, Kelly M, Hynds P, Weatherill J, Majury A, O'Dwyer J. Groundwater resources as a global reservoir for antimicrobial-resistant bacteria. WATER RESEARCH 2020; 170:115360. [PMID: 31830652 DOI: 10.1016/j.watres.2019.115360] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/25/2019] [Accepted: 11/30/2019] [Indexed: 05/25/2023]
Abstract
Antimicrobial resistance represents one of our most significant global health threats, with increasing incidences noted in both clinical and environmental settings. As such, identifying and understanding the sources and pathways for antimicrobial-resistant bacteria (ARB) is critical. The current study presents the first systematic review and pooled analysis of ARB occurrence in global groundwater supplies, which are used as primary drinking water sources by 2.2 billion people worldwide and are recurrently linked to significant outbreaks of infection. Seventy peer-reviewed studies were identified and included; findings reveal that 80.2% ± 29.0 and 57.2% ± 36.8 of aggregated groundwater isolates were resistant to ≥1 and ≥3 antimicrobials, respectively. Where bacteria were present, ARB were identified in 76.9% ± 33.7 of individual wells and springs. Our results leave little doubt that groundwater represents a major global reservoir for ARB, however significant research is required to establish environmental determinants and mechanisms mediating their occurrence.
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Affiliation(s)
- Luisa Andrade
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork, Ireland; Irish Centre for Research in Applied Geosciences, University College Dublin, Dublin, Ireland
| | | | - Paul Hynds
- Irish Centre for Research in Applied Geosciences, University College Dublin, Dublin, Ireland; Environmental Sustainability and Health Institute, Technological University Dublin, Dublin 7, Ireland
| | - John Weatherill
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork, Ireland; Irish Centre for Research in Applied Geosciences, University College Dublin, Dublin, Ireland; Environmental Research Institute, University College Cork, Cork, Ireland
| | - Anna Majury
- Queen's University, Kingston, Ontario, Canada; Public Health Ontario, Kingston, Ontario, Canada
| | - Jean O'Dwyer
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork, Ireland; Irish Centre for Research in Applied Geosciences, University College Dublin, Dublin, Ireland; Environmental Research Institute, University College Cork, Cork, Ireland.
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40
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Eduardo-Correia B, Morales-Filloy H, Abad JP. Bacteria From the Multi-Contaminated Tinto River Estuary (SW, Spain) Show High Multi-Resistance to Antibiotics and Point to Paenibacillus spp. as Antibiotic-Resistance-Dissemination Players. Front Microbiol 2020; 10:3071. [PMID: 31998281 PMCID: PMC6965355 DOI: 10.3389/fmicb.2019.03071] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 12/19/2019] [Indexed: 12/31/2022] Open
Abstract
Bacterial resistance to antibiotics is an ever-increasing phenomenon that, besides clinical settings, is generally assumed to be prevalent in environmental soils and waters. The analysis of bacteria resistant to each one of 11 antibiotics in waters and sediments of the Huelva’s estuary, a multi-contaminated environment, showed high levels of bacteria resistant mainly to Tm, among others. To further gain knowledge on the fate of multi-drug resistance (MDR) in environmental bacteria, 579 ampicillin-resistant bacteria were isolated tested for resistance to 10 antibiotics. 92.7% of the isolates were resistant to four or more antibiotic classes, indicating a high level of multi-resistance. 143 resistance profiles were found. The isolates with different MDR profiles and/or colony morphologies were phylogenetically ascribed based on 16S rDNA to phyla Proteobacteria, Firmicutes, Actinobacteria, and Bacteroidetes, including 48 genera. Putative intrinsic resistance was detected in different phylogenetic groups including genera Altererythrobacter, Bacillus, Brevundimonas, Erythrobacter, Mesonia, Ochrobactrum, and Ponticaulis. Correlation of the presence of pairs of the non-intrinsic-resistances in phylogenetic groups based on the kappa index (κ) highlighted the co-habitation of some of the tested pairs at different phylogenetic levels. Maximum correlation (κ = 1.000) was found for pairs CzR/TcR in Betaproteobacteria, and CcR/TcR and EmR/SmR in Sphingobacteriia at the class level, while at the genus level, was found for CcR/TcR and NxR/TmR in Mesonia, CzR/TmR and EmR/KmR in Paenibacillus, and CcR/EmR and RpR/TcR in Pseudomonas. These results could suggest the existence of intra-class and intra-genus-transmissible genetic elements containing determinants for both members of each pair. Network analysis based on κ values higher than 0.4 indicated the sharing of paired resistances among several genera, many of them centered on the Paenibacillus node and raising the hypothesis of inter-genera transmission of resistances interconnected through members of this genus. This is the first time that a possible hotspot of resistance interchange in a particular environment may have been detected, opening up the possibility that one, or a few, bacterial members of the community could be important promoters of antibiotic resistance (AR) dissemination in this environment’s bacterial population. Further studies using the available isolates will likely give insights of the possible mechanisms and genetic elements involved.
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Affiliation(s)
- Benedito Eduardo-Correia
- Department of Molecular Biology, Faculty of Sciences-Biology Building, Universidad Autónoma de Madrid, Madrid, Spain
| | - Héctor Morales-Filloy
- Department of Molecular Biology, Faculty of Sciences-Biology Building, Universidad Autónoma de Madrid, Madrid, Spain
| | - José P Abad
- Department of Molecular Biology, Faculty of Sciences-Biology Building, Universidad Autónoma de Madrid, Madrid, Spain
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41
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Su YB, Kuang SF, Peng XX, Li H. The depressed P cycle contributes to the acquisition of ampicillin resistance in Edwardsiella piscicida. J Proteomics 2019; 212:103562. [PMID: 31733415 DOI: 10.1016/j.jprot.2019.103562] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/03/2019] [Accepted: 10/18/2019] [Indexed: 02/07/2023]
Abstract
Antibiotic-resistant bacteria are an increasingly serious threat to human health and aquaculture. To further explore bacterial antibiotic resistance mechanism, iTRAQ is used to identify a differential proteome in ampicillin-resistant LTB4 (LTB4-RAMP), a strain of Edwardsiella piscicida. A total of 102 differentially proteins with 50 upregulation and 52 downregulation are identified. Since many of these changes are related to metabolism, interactive pathways explorer(iPath) is used to understand a global differentially metabolic response in LTB4-RAMP. This analysis identifies a global depressed metabolic modulation as the most characteristic feature of LTB4-RAMP. Lower membrane potential and ATP in LTB4-RAMP than control support that the central carbon metabolism and energy metabolism are reduced. Since the pyruvate cycle (the P cycle) plays a key role in the central carbon metabolism and energy metabolism, further investigation focuses on the P cycle and shows that expression of genes and activity of enzymes in the P cycle are decreased in LTB4-RAMP. These results support the conclusion that the depressed P cycle contributes to the acquisition of ampicillin resistance in E.piscicida. These findings indicate that the combination of proteomics and iPath analysis can provide a global metabolic profile, which helps us better understand the correlation between ampicillin resistance and cellular metabolism. SIGNIFICANCE: The present study uses iTRAQ to explore ampicillin resistance mechanism in Edwardsiella piscicida and finds many of these differential abundances of proteins are related to metabolism. IPath further identifies a global depressed metabolic modulation and characterizes the reduced pyruvate cycle as the most characteristic feature of the ampicillin-resistant E. piscicida, which is supported by reduced expression of genes and activity of enzymes in the pyruvate cycle. Consisitently, lower membrane potential and ATP are detetced. These results reveal the metabolic mechanism of ampicillin resistance and provide a solid proof to revert the resistance by reprogramming metabolomics.
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Affiliation(s)
- Yu-Bin Su
- Center for Proteomics and Metabolomics, State Key Laboratory of Bio-Control, Guangdong Province Key Laboratory for Pharmaceutical Functional Genes, School of Life Sciences, Sun Yat-sen University, University City, Guangzhou 510006, People's Republic of China; Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Department of Biotechnology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Su-Fang Kuang
- Center for Proteomics and Metabolomics, State Key Laboratory of Bio-Control, Guangdong Province Key Laboratory for Pharmaceutical Functional Genes, School of Life Sciences, Sun Yat-sen University, University City, Guangzhou 510006, People's Republic of China
| | - Xuan-Xian Peng
- Center for Proteomics and Metabolomics, State Key Laboratory of Bio-Control, Guangdong Province Key Laboratory for Pharmaceutical Functional Genes, School of Life Sciences, Sun Yat-sen University, University City, Guangzhou 510006, People's Republic of China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China
| | - Hui Li
- Center for Proteomics and Metabolomics, State Key Laboratory of Bio-Control, Guangdong Province Key Laboratory for Pharmaceutical Functional Genes, School of Life Sciences, Sun Yat-sen University, University City, Guangzhou 510006, People's Republic of China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China.
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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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43
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Evariste L, Barret M, Mottier A, Mouchet F, Gauthier L, Pinelli E. Gut microbiota of aquatic organisms: A key endpoint for ecotoxicological studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 248:989-999. [PMID: 31091643 DOI: 10.1016/j.envpol.2019.02.101] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 01/31/2019] [Accepted: 02/28/2019] [Indexed: 06/09/2023]
Abstract
Gut microbial communities constitute a compartment of crucial importance in regulation of homeostasis of multiple host physiological functions as well as in resistance towards environmental pollutants. Many chemical contaminants were shown to constitute a major threat for gut bacteria. Changes in gut microbiome could lead to alteration of host health. The access to high-throughput sequencing platforms permitted a great expansion of this discipline in human health while data from ecotoxicological studies are scarce and particularly those related to aquatic pollution. The main purpose of this review is to summarize recent body of literature providing data obtained from microbial community surveys using high-throughput 16S rRNA sequencing technology applied to aquatic ecotoxicity. Effects of pesticides, PCBs, PBDEs, heavy metals, nanoparticles, PPCPs, microplastics and endocrine disruptors on gut microbial communities are presented and discussed. We pointed out difficulties and limits provided by actual methodologies. We also proposed ways to improve understanding of links between changes in gut bacterial communities and host fitness loss, along with further applications for this emerging discipline.
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Affiliation(s)
- Lauris Evariste
- EcoLab, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France.
| | - Maialen Barret
- EcoLab, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Antoine Mottier
- EcoLab, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Florence Mouchet
- EcoLab, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Laury Gauthier
- EcoLab, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Eric Pinelli
- EcoLab, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
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44
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Liu C, Feng J, Zhang D, Xie Y, Li A, Wang J, Su Y. Clustering Analysis of Antibiograms and Antibiogram Types ofStreptococcus agalactiaeStrains from Tilapia in China. Microb Drug Resist 2018; 24:1431-1439. [DOI: 10.1089/mdr.2017.0350] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Chan Liu
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, People's Republic of China
- College of Fisheries, Tianjin Agricultural University, Tianjin, People's Republic of China
| | - Juan Feng
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, People's Republic of China
| | - Defeng Zhang
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, People's Republic of China
| | - Yundan Xie
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, People's Republic of China
- College of Fisheries, Tianjin Agricultural University, Tianjin, People's Republic of China
| | - Anxing Li
- Key Laboratory for Aquatic Products Safety of Ministry of Education/State Key Laboratory of Biocontrol, The School of Life Sciences, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Jiangyong Wang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, People's Republic of China
| | - Youlu Su
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, People's Republic of China
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Tymensen L, Zaheer R, Cook SR, Amoako KK, Goji N, Read R, Booker CW, Hannon SJ, Neumann N, McAllister TA. Clonal expansion of environmentally-adapted Escherichia coli contributes to propagation of antibiotic resistance genes in beef cattle feedlots. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 637-638:657-664. [PMID: 29758422 DOI: 10.1016/j.scitotenv.2018.05.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 05/01/2018] [Accepted: 05/02/2018] [Indexed: 06/08/2023]
Abstract
Livestock wastewater lagoons represent important environmental reservoirs of antibiotic resistance genes (ARGs), although factors contributing to their proliferation within these reservoirs remain poorly understood. Here, we characterized Escherichia coli from feedlot cattle feces and associated wastewater lagoons using CRISPR1 subtyping, and demonstrated that while generic E. coli were genetically diverse, populations were dominated by several 'feedlot-adapted' CRISPR types (CTs) that were widely distributed throughout the feedlot. Moreover, E. coli bearing beta-lactamase genes, which confer reduced susceptibility to third-generation cephalosporin's, predominantly belonged to these feedlot-adapted CTs. Remarkably, the genomic region containing the CRISPR1 allele was more frequently subject to genetic exchange among wastewater isolates compared to fecal isolates, implicating this region in environmental adaptation. This allele is proximal to the mutS-rpoS-nlpD region, which is involved in regulating recombination barriers and adaptive stress responses. There were no loss-of-function mutS or rpoS mutations or beneficial accessory genes present within the mutS-rpoS-nlpD region that would account for increased environmental fitness among feedlot-adapted isolates. However, comparative sequence analysis revealed that protein sequences within this region were conserved among most feedlot-adapted CTs, but not transient fecal CTs, and did not reflect phylogenetic relatedness, implying that adaptation to wastewater environments may be associated with genetic variation related to stress resistance. Collectively, our findings suggest adaptation of E. coli to feedlot environments may contribute to propagation of ARGs in wastewater lagoons.
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Affiliation(s)
- Lisa Tymensen
- Alberta Agriculture and Forestry, Irrigation and Farm Water Branch, Lethbridge, Alberta T1J 4V6, Canada.
| | - Rahat Zaheer
- Agriculture and Agri-Food Canada, Lethbridge, Alberta T1J 4B1, Canada
| | - Shaun R Cook
- Alberta Agriculture and Forestry, Irrigation and Farm Water Branch, Lethbridge, Alberta T1J 4V6, Canada
| | - Kingsley K Amoako
- Canadian Food Inspection Agency, National Center for Animal Disease, Lethbridge, Alberta, Canada
| | - Noriko Goji
- Canadian Food Inspection Agency, National Center for Animal Disease, Lethbridge, Alberta, Canada
| | - Ron Read
- Microbiology, Immunology and Infectious Diseases, University of Calgary, Alberta T1Y 6J4, Canada
| | - Calvin W Booker
- Feedlot Health Management Services, Ltd., Okotoks, Alberta T1S 2A2, Canada
| | - Sherry J Hannon
- Feedlot Health Management Services, Ltd., Okotoks, Alberta T1S 2A2, Canada
| | - Norman Neumann
- School of Public Health, University of Alberta, 3-300 Edmonton Clinic Health Authority, 11405-87 Ave, Edmonton, Alberta T6G 1C9, Canada
| | - Tim A McAllister
- Agriculture and Agri-Food Canada, Lethbridge, Alberta T1J 4B1, Canada
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Wanka KM, Damerau T, Costas B, Krueger A, Schulz C, Wuertz S. Isolation and characterization of native probiotics for fish farming. BMC Microbiol 2018; 18:119. [PMID: 30236057 PMCID: PMC6148792 DOI: 10.1186/s12866-018-1260-2] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 09/07/2018] [Indexed: 12/14/2022] Open
Abstract
Background Innovations in fish nutrition act as drivers for the sustainable development of the rapidly expanding aquaculture sector. Probiotic dietary supplements are able to improve health and nutrition of livestock, but respective bacteria have mainly been isolated from terrestrial, warm-blooded hosts, limiting an efficient application in fish. Native probiotics adapted to the gastrointestinal tract of the respective fish species will establish within the original host more efficiently. Results Here, 248 autochthonous isolates were cultured from the digestive system of three temperate flatfish species. Upon 16S rRNA gene sequencing of 195 isolates, 89.7% (n = 175) Gram-negatives belonging to the Alpha- (1.0%), Beta- (4.1%) and Gammaproteobacteria (84.6%) were identified. Candidate probiotics were further characterized using in vitro assays addressing 1) inhibition of pathogens, 2) degradation of plant derived anti-nutrient (saponin) and 3) the content of essential fatty acids (FA) and their precursors. Twelve isolates revealed an inhibition towards the common fish pathogen Tenacibaculum maritimum, seven were able to metabolize saponin as sole carbon and energy source and two isolates 012 Psychrobacter sp. and 047 Paracoccus sp. revealed remarkably high contents of docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA). Furthermore, a rapid and cost-effective method to coat feed pellets revealed high viability of the supplemented probiotics over 54 d of storage at 4°C. Conclusions Here, a strategy for the isolation and characterization of native probiotic candidates is presented that can easily be adapted to other farmed fish species. The simple coating procedure assures viability of probiotics and can thus be applied for the evaluation of probiotic candidates in the future.
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Affiliation(s)
- Konrad M Wanka
- Department of Ecophysiology and Aquaculture, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 310, 12587, Berlin, Germany. .,Gesellschaft für Marine Aquakultur mbH (GMA), Hafentörn 3, 25761, Büsum, Germany. .,Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt University Berlin, Unter den Linden 6, 10099, Berlin, Germany.
| | - Thilo Damerau
- Department of Ecophysiology and Aquaculture, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 310, 12587, Berlin, Germany
| | - Benjamin Costas
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Novo Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida Norton de Matos S/N, 4450-208, Matosinhos, Portugal.,Instituto de Ciências Biomédicas Abel Salazar (ICBAS-UP), Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Angela Krueger
- Department of Ecophysiology and Aquaculture, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 310, 12587, Berlin, Germany
| | - Carsten Schulz
- Gesellschaft für Marine Aquakultur mbH (GMA), Hafentörn 3, 25761, Büsum, Germany.,Institute for Animal Breeding and Husbandry, Christian-Albrechts-University Kiel, Hermann-Rodewald-Straße 6, Kiel, Germany
| | - Sven Wuertz
- Department of Ecophysiology and Aquaculture, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 310, 12587, Berlin, Germany.,Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt University Berlin, Unter den Linden 6, 10099, Berlin, Germany
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Keen PL, Knapp CW, Hall KJ, Graham DW. Seasonal dynamics of tetracycline resistance gene transport in the Sumas River agricultural watershed of British Columbia, Canada. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 628-629:490-498. [PMID: 29453178 DOI: 10.1016/j.scitotenv.2018.01.278] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 01/26/2018] [Accepted: 01/27/2018] [Indexed: 06/08/2023]
Abstract
Environmental transport of contaminants that can influence the development of antibiotic resistance in bacteria is an important concern in the management of ecological and human health risks. Agricultural regions are locales where practices linked to food crop and livestock production can introduce contaminants that could alter the selective pressures for the development of antibiotic resistance in microbiota. This is important in regions where the use of animal manure or municipal biosolids as waste and/or fertilizer could influence selection for antibiotic resistance in pathogenic bacterial species. To investigate the environmental transport of contaminants that could lead to the development of antibiotic resistance in bacteria, a watershed with one of the highest levels of intensity of agricultural activity in Canada was studied; the Sumas River located 60 km east of Vancouver, British Columbia. This two-year assessment monitored four selected tetracycline resistance genes (tet(O), tet(M), tet(Q), tet(W)) and water quality parameters (temperature, specific conductivity, turbidity, suspended solids, nitrate, phosphate and chloride) at eight locations across the watershed. The tetracycline resistance genes (Tcr) abundances in the Sumas River network ranged between 1.47 × 102 and 3.49 × 104 copies/mL and ranged between 2.3 and 6.9 copies/mL in a control stream (located far from agricultural activities) for the duration of the study. Further, Tcr abundances that were detected in the wet season months ranged between 1.3 × 103 and 2.29 × 104 copies/mL compared with dry season months (ranging between 0.6 and 31.2 copies/mL). Highest transport rates between 1.67 × 1011 and 1.16 × 1012 copies/s were observed in November 2005 during periods of high rainfall. The study showed that elevated concentrations of antibiotic resistance genes in the order of 102-104 copies/mL can move through stream networks in an agricultural watershed but seasonal variations strongly influenced specific transport patterns of these genes.
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Affiliation(s)
- Patricia L Keen
- Department of Civil Engineering, University of British Columbia, Vancouver, BC V5l 3B6, Canada.
| | - Charles W Knapp
- Civil and Environmental Engineering, University of Strathclyde, Glasgow G1 1XJ, UK
| | - Kenneth J Hall
- Department of Civil Engineering, University of British Columbia, Vancouver, BC V5l 3B6, Canada
| | - David W Graham
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
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Eckert EM, Di Cesare A, Kettner MT, Arias-Andres M, Fontaneto D, Grossart HP, Corno G. Microplastics increase impact of treated wastewater on freshwater microbial community. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 234:495-502. [PMID: 29216487 DOI: 10.1016/j.envpol.2017.11.070] [Citation(s) in RCA: 135] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 11/20/2017] [Accepted: 11/21/2017] [Indexed: 06/07/2023]
Abstract
Plastic pollution is a major global concern with several million microplastic particles entering every day freshwater ecosystems via wastewater discharge. Microplastic particles stimulate biofilm formation (plastisphere) throughout the water column and have the potential to affect microbial community structure if they accumulate in pelagic waters, especially enhancing the proliferation of biohazardous bacteria. To test this scenario, we simulated the inflow of treated wastewater into a temperate lake using a continuous culture system with a gradient of concentration of microplastic particles. We followed the effect of microplastics on the microbial community structure and on the occurrence of integrase 1 (int1), a marker associated with mobile genetic elements known as a proxy for anthropogenic effects on the spread of antimicrobial resistance genes. The abundance of int1 increased in the plastisphere with increasing microplastic particle concentration, but not in the water surrounding the microplastic particles. Likewise, the microbial community on microplastic was more similar to the original wastewater community with increasing microplastic concentrations. Our results show that microplastic particles indeed promote persistence of typical indicators of microbial anthropogenic pollution in natural waters, and substantiate that their removal from treated wastewater should be prioritised.
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Affiliation(s)
- Ester M Eckert
- Microbial Ecology Group (MEG), National Research Council - Institute of Ecosystem Study (CNR-ISE), Largo Tonolli, 50, 28922 Verbania, Italy.
| | - Andrea Di Cesare
- Microbial Ecology Group (MEG), National Research Council - Institute of Ecosystem Study (CNR-ISE), Largo Tonolli, 50, 28922 Verbania, Italy; Department of Earth, Environmental and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genoa, Italy
| | - Marie Therese Kettner
- Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Dept. Experimental Limnology, Alte Fischerhuette 2, D-16775 Stechlin, Germany; Potsdam University, Inst. of Biochemistry and Biology, Maulbeerallee 2, D-14469 Potsdam, Germany
| | - Maria Arias-Andres
- Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Dept. Experimental Limnology, Alte Fischerhuette 2, D-16775 Stechlin, Germany; Potsdam University, Inst. of Biochemistry and Biology, Maulbeerallee 2, D-14469 Potsdam, Germany; Central American Institute for Studies on Toxic Substances (IRET), Universidad Nacional, Campus Omar Dengo, P.O. Box 86-3000, Heredia, Costa Rica
| | - Diego Fontaneto
- Microbial Ecology Group (MEG), National Research Council - Institute of Ecosystem Study (CNR-ISE), Largo Tonolli, 50, 28922 Verbania, Italy
| | - Hans-Peter Grossart
- Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Dept. Experimental Limnology, Alte Fischerhuette 2, D-16775 Stechlin, Germany; Potsdam University, Inst. of Biochemistry and Biology, Maulbeerallee 2, D-14469 Potsdam, Germany
| | - Gianluca Corno
- Microbial Ecology Group (MEG), National Research Council - Institute of Ecosystem Study (CNR-ISE), Largo Tonolli, 50, 28922 Verbania, Italy
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