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Di Cesare A, Mammola S, Sabatino R, Fontaneto D, Eckert EM, Rogora M, Tonsi T, Corno G. Where do the antibiotic resistance genes come from? A modulated analysis of sources and loads of resistances in Lake Maggiore. FEMS Microbiol Ecol 2024; 100:fiae025. [PMID: 38389242 PMCID: PMC10939355 DOI: 10.1093/femsec/fiae025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 01/31/2024] [Accepted: 02/21/2024] [Indexed: 02/24/2024] Open
Abstract
Antibiotic resistance genes (ARGs) are abundant in aquatic ecosystems affected by human activities. Understanding the fate of ARGs across different ecosystems is essential because of the significant role aquatic environments play in the cycle of antibiotic resistance. We quantified selected ARGs in Lake Maggiore, its main tributaries, and the effluent of the main wastewater treatment plant (WWTP) discharging directly into the lake. We linked their dynamics to the different anthropogenic impacts in each tributary's watershed. The dynamics of tetA in the lake were influenced by those of the rivers and the WWTP effluent, and by the concentration of N-NH4, related to anthropogenic pollution, while sul2 abundance in the lake was not influenced by any water inflow. The dynamics of the different ARGs varied across the different rivers. Rivers with watersheds characterized by high population density, touristic activities, and secondary industries released more ARGs, while ermB correlated with higher numbers of primary industries. This study suggests a limited contribution of treated wastewater in the spread of ARGs, indicating as prevalent origin other sources of pollution, calling for a reconsideration on what are considered the major sources of ARGs into the environment.
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Affiliation(s)
- Andrea Di Cesare
- National Research Council of Italy – Water Research Institute (CNR-IRSA), I-28922 Verbania, Italy
| | - Stefano Mammola
- National Research Council of Italy – Water Research Institute (CNR-IRSA), I-28922 Verbania, Italy
- Finnish Museum of Natural History (LUOMUS), University of Helsinki, FI-00014 Helsinki, Finland
| | - Raffaella Sabatino
- National Research Council of Italy – Water Research Institute (CNR-IRSA), I-28922 Verbania, Italy
| | - Diego Fontaneto
- National Research Council of Italy – Water Research Institute (CNR-IRSA), I-28922 Verbania, Italy
| | - Ester M Eckert
- National Research Council of Italy – Water Research Institute (CNR-IRSA), I-28922 Verbania, Italy
| | - Michela Rogora
- National Research Council of Italy – Water Research Institute (CNR-IRSA), I-28922 Verbania, Italy
| | - Tiziana Tonsi
- National Research Council of Italy – Water Research Institute (CNR-IRSA), I-28922 Verbania, Italy
| | - Gianluca Corno
- National Research Council of Italy – Water Research Institute (CNR-IRSA), I-28922 Verbania, Italy
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Pérez-Valdespino A, Pircher R, Pérez-Domínguez CY, Mendoza-Sanchez I. Impact of flooding on urban soils: Changes in antibiotic resistance and bacterial community after Hurricane Harvey. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 766:142643. [PMID: 33077230 DOI: 10.1016/j.scitotenv.2020.142643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 09/21/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
Major perturbations in soil and water quality are factors that can negatively impact human health. In soil environments of urban areas, changes in antibiotic-resistance profiles may represent an increased risk of exposure to antibiotic-resistant bacteria via oral, dermal, or inhalation routes. We studied the perturbation of antibiotic-resistance profiles and microbial communities in soils following a major flooding event in Houston, Texas, caused by Hurricane Harvey. The main objective of this study was to examine the presence of targeted antibiotic-resistance genes and changes in the diversity of microbial communities in soils a short time (3-5 months) and a long time (18 months) after the catastrophic flooding event. Using polymerase chain reaction, we surveyed fourteen antibiotic-resistance elements: intI1, intI2, sul1, sul2, tet(A) to (E), tet(M), tet(O), tet(W), tet(X), and blaCMY-2. The number of antibiotic-resistance genes detected were higher in short-time samples compared to samples taken a long time after flooding. From all the genes surveyed, only tet(E), blaCMY-2, and intI1 were prevalent in short-time samples but not observed in long-time samples; thus, we propose these genes as indicators of exogenous antibiotic resistance in the soils. Sequencing of the V3-V4 region of the bacterial 16S rRNA gene was used to find that flooding may have affected bacterial community diversity, enhanced differences among bacterial lineages profiles, and affected the relative abundance of Actinobacteria, Verrucomicrobia, and Gemmatimonadetes. A major conclusion of this study is that antibiotic resistance profiles of soil bacteria are impacted by urban flooding events such that they may pose an enhanced risk of exposure for up to three to five months following the hurricane. The occurrence of targeted antibiotic-resistance elements decreased eighteen months after the hurricane indicating a reduction of the risk of exposure long time after Harvey.
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Affiliation(s)
- Abigail Pérez-Valdespino
- Department of Biochemistry, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Ryan Pircher
- Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, United States of America
| | - Citlali Y Pérez-Domínguez
- Department of Biochemistry, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Itza Mendoza-Sanchez
- Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, United States of America.
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Wang H, Hou L, Liu Y, Liu K, Zhang L, Huang F, Wang L, Rashid A, Hu A, Yu C. Horizontal and vertical gene transfer drive sediment antibiotic resistome in an urban lagoon system. J Environ Sci (China) 2021; 102:11-23. [PMID: 33637236 DOI: 10.1016/j.jes.2020.09.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/15/2020] [Accepted: 09/15/2020] [Indexed: 06/12/2023]
Abstract
Rapid urbanization has resulted in pervasive occurrence of antibiotic resistance genes (ARGs) in urban aquatic ecosystems. However, limited information is available concerning the ARG profiles and the forces responsible for their assembly in urban landscape lagoon systems. Here, we employed high-throughput quantitative PCR (HT-qPCR) to characterize the spatial variations of ARGs in surface and core sediments of Yundang Lagoon, China. The results indicated that the average richness and absolute abundance of ARGs were 11 and 53 times higher in the lagoon sediments as compared to pristine reference Tibetan lake sediments, highlighting the role of anthropogenic activities in ARG pollution. Co-occurrence network analysis indicated that various anaerobic prokaryotic genera belonging to Alpha-, Deltaproteobacteria, Bacteroidetes, Euryarchaeota, Firmicutes and Synergistetes were the potential hosts of ARGs. The partial least squares-path modeling (PLS-PM) analysis revealed positive and negative indirect effects of physicochemical factors and heavy metals on the lagoon ARG profiles, via biotic factors, respectively. The horizontal (mediated by mobile genetic elements) and vertical (mediated by prokaryotic communities) gene transfer may directly contribute the most to drive the abundance and composition of ARGs, respectively. Furthermore, the neutral community model demonstrated that the assembly of sediment ARG communities was jointly governed by deterministic and stochastic processes. Overall, this study provides novel insights into the diversity and distribution of ARGs in the benthic habitat of urban lagoon systems and underlying mechanisms for the spread and proliferation of ARGs.
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Affiliation(s)
- Hongjie Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liyuan Hou
- Department of Chemistry, SUNY College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - Yongqin Liu
- Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Keshao Liu
- Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Lanping Zhang
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fuyi Huang
- University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Lin Wang
- University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Azhar Rashid
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Nuclear Institute for Food and Agriculture, Tarnab, Peshawar 25000, Pakistan
| | - Anyi Hu
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
| | - Changping Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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Sabatino R, Di Cesare A, Dzhembekova N, Fontaneto D, Eckert EM, Corno G, Moncheva S, Bertoni R, Callieri C. Spatial distribution of antibiotic and heavy metal resistance genes in the Black Sea. MARINE POLLUTION BULLETIN 2020; 160:111635. [PMID: 32919124 DOI: 10.1016/j.marpolbul.2020.111635] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/06/2020] [Accepted: 08/30/2020] [Indexed: 06/11/2023]
Abstract
Antibiotic resistance genes (ARGs) and antibiotic resistant bacteria (ARB) are worldwide considered as emerging contaminants of large interest, and a primary threat to human health. It is becoming clear that the environment plays a central role in the transmission, spread, and evolution of antibiotic resistance. Although marine systems have been largely investigated, only a few studies have considered the presence of ARGs in meso- and bathypelagic waters. To date, no molecular based studies have yet been made to investigate the occurrence of ARGs in the Black Sea, the largest meromictic basin in the world, receiving water from a number of important European rivers and their residues of anthropogenic activities in permanently stratified mesopelagic water masses. In this study, we determined the presence and the abundance of five ARGs (blaCTXM, ermB, qnrS, sul2, tetA) and of the heavy metal resistance gene (HMRG) czcA, in different sampling sites in the eastern and western Black Sea, at several depths (up to 1000 m) and various distances from the shoreline. Three ARGs (blaCTXM, sul2, and tetA) and czcA were present in at least 43% of the analysed samples, whereas ermB and qnrS were never detected. In particular, sul2 abundances increased significantly in coastal location, whereas tetA increased with sampling depth. These findings point out the Black Sea as a source of ARGs and HMRGs distributed along the whole water column.
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Affiliation(s)
- Raffaella Sabatino
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy.
| | - Andrea Di Cesare
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy
| | - Nina Dzhembekova
- Institute for Oceanology Fridtjof Nansen, Bulgarian Academy of Sciences, First May Street 40, P.O. Box 152, 9000 Varna, Bulgaria
| | - Diego Fontaneto
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy
| | - Ester M Eckert
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy
| | - Gianluca Corno
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy
| | - Snejana Moncheva
- Institute for Oceanology Fridtjof Nansen, Bulgarian Academy of Sciences, First May Street 40, P.O. Box 152, 9000 Varna, Bulgaria
| | - Roberto Bertoni
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy
| | - Cristiana Callieri
- Water Research Institute - National Research Council of Italy (CNR-IRSA), Molecular Ecology Group (MEG), Largo Tonolli 50, 28922 Verbania (VB), Italy
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Zhang T, Fukuda K, Topp E, Zhu YG, Smalla K, Tiedje JM, Larsson DGJ. Editorial: The Environmental Dimension of Antibiotic Resistance. FEMS Microbiol Ecol 2020; 96:5871492. [DOI: 10.1093/femsec/fiaa130] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 01/10/2023] Open
Affiliation(s)
- Tong Zhang
- Department of Civil Engineering, The University of Hong Kong, Hong Kong, China
| | - Keiji Fukuda
- School of Public Health, The University of Hong Kong, Hong Kong, China
| | - Edward Topp
- Agriculture and Agri-Food Canada, Department of Biology, University of Western Ontario, London, Canada
| | - Yong-Guan Zhu
- Institute of Urban Environmenta, Chinese Academy of Science, Xiamen, China
| | - Kornelia Smalla
- Julius Kühn-Institut, Federal Research Centre for Cultivated Plants, Institute for Epidemiology and Pathogen Diagnostics, Braunschweig, Germany
| | - James M Tiedje
- The Center for Microbial Ecology, Michigan State University, East Lansing, Michigan, USA
| | - D G Joakim Larsson
- Department of Infectious Disease, Centre for Antibiotic Resistance Research, University of Gothenburg, Gothenburg, Sweden
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