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Pan X, Lin L, Cao X, Jing Z, Dong L, Zhai W. Response of microbial communities and biogeochemical cycling functions to sediment physicochemical properties and microplastic pollution under damming and water diversion projects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 940:173209. [PMID: 38754501 DOI: 10.1016/j.scitotenv.2024.173209] [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: 03/03/2024] [Revised: 05/05/2024] [Accepted: 05/11/2024] [Indexed: 05/18/2024]
Abstract
Understanding the interactions among flow-sediment, microorganisms, and biogeochemical cycles is crucial for comprehending the ecological response mechanisms of dams and water diversion. This study focused on the spatial patterns of carbon, nitrogen, phosphorus, and sulfur (CNPS) cycle functional genes in the water resource for the middle route of the South-to-North Water Diversion Project in China, specifically the Danjiangkou Reservoir (comprising the Han and Dan reservoirs). The investigation incorporated sediment physicochemical properties and microplastic pollution. Numerous microbial species were identified, revealing that microbial communities demonstrated sensitivity to changes in sedimentary mud content. The communities exhibited greater β diversity due to finer sediment particles in the Han Reservoir (HR), whereas in the Dan Reservoir (DR), despite having higher sediment nutrient content and MPs pollution, did not display this pattern. Regarding the composition and structure of microbial communities, the study highlighted that sediment N and P content had a more significant influence compared to particle size and MPs. The quantitative microbial element cycling (QMEC) results confirmed the presence of extensive chemolithotrophic microbes and strong nitrogen cycle activity stemming from long-term water storage and diversion operations. The denitrification intensity in the HR surpassed that of the DR. Notably, near the pre-dam area, biological nitrogen fixation, phosphorus removal, and sulfur reduction exhibited noticeable increases. Dam construction refined sediment, fostering the growth of different biogeochemical cycling bacteria and increasing the abundance of CNPS cycling genes. Furthermore, the presence of MPs exhibited a positive correlation with S cycling genes and a negative correlation with C and N cycling genes. These findings suggest that variations in flow-sediment dynamics and MPs pollution have significant impact the biogeochemical cycle of the reservoir.
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Affiliation(s)
- Xiong Pan
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan 430010, China; Innovation Team for Basin Water Environmental Protection and Governance of Changjiang Water Resources Commission, Wuhan 430010, China
| | - Li Lin
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan 430010, China; Innovation Team for Basin Water Environmental Protection and Governance of Changjiang Water Resources Commission, Wuhan 430010, China.
| | - Xiaohuan Cao
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan 430010, China
| | - Zheng Jing
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan 430010, China; Innovation Team for Basin Water Environmental Protection and Governance of Changjiang Water Resources Commission, Wuhan 430010, China
| | - Lei Dong
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan 430010, China; Innovation Team for Basin Water Environmental Protection and Governance of Changjiang Water Resources Commission, Wuhan 430010, China
| | - Wenliang Zhai
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan 430010, China
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Phan D, Bhattacharjee AS, Hanan D, Park S, Herrera D, Ashworth D, Schmidt M, Men Y, Ferreira JFS, Ibekwe AM. Dissemination of antimicrobial resistance in agricultural ecosystems following irrigation with treated municipal wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 934:173288. [PMID: 38768725 DOI: 10.1016/j.scitotenv.2024.173288] [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: 04/16/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/22/2024]
Abstract
The spread of antimicrobial resistance (AMR) in agricultural systems via irrigation water is a serious public health issue as it can be transmitted to humans through the food chain. Therefore, understanding the dissemination routes of antibiotic resistance genes (ARGs) in agricultural systems is crucial for the assessment of health risks associated with eating fresh vegetables such as spinach and radish irrigated with treated municipal wastewater (TMW). In this study, we investigated the bacterial community structure and resistome in the soil-plant-earthworm continuum after irrigation of spinach and radish with TMW containing the antibiotics trimethoprim (TMP), sulfamethoxazole (SMZ), and sulfapyridine (SPD) using 16S rRNA gene sequencing and high throughput quantitative PCR (HT-qPCR). The study was conducted in two phases: Phase I involved eight weeks of spinach and radish production using TMW for irrigation, whereas Phase II entailed three weeks of earthworm exposure to contaminated plant material obtained in Phase I. The 16S data indicated that the rhizosphere bacterial community composition and structure were more resilient to antibiotic residuals in the irrigated water, with radish showing less susceptibility than spinach than those of bulk soils. The HT-qPCR analysis revealed that a total of 271 ARGs (out of 285) and 9 mobile genetic elements (MGEs) (out of 10) were detected in all samples. Higher diversity and abundance of ARGs were observed for samples irrigated with higher concentrations of antibiotics in both spinach and radish treatments. However, compared to spinach, radish ARG dynamics in the soil biome were more stable due to the change of antibiotic introduction to the soil. At the class level, multi-drug resistance (MDR) class was altered significantly by the presence of antibiotics in irrigation water. Compared to earthworm fecal samples, their corresponding soil environments showed a higher number of detected ARGs, suggesting that earthworms could play a role in reducing ARG dissemination in the soil environments. These findings will not only provide insight into the dissemination of ARGs in agricultural environments due to antibiotic residuals in irrigated water but could help understand the potential human health risks associated with ARGs.
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Affiliation(s)
- Duc Phan
- US Salinity Laboratory, USDA-ARS, 450 W. Big Springs Rd., Riverside, CA 92507, USA; Department of Environmental Sciences, University of California, Riverside, CA 92507, USA
| | - Ananda S Bhattacharjee
- US Salinity Laboratory, USDA-ARS, 450 W. Big Springs Rd., Riverside, CA 92507, USA; Department of Environmental Sciences, University of California, Riverside, CA 92507, USA
| | - Desmond Hanan
- US Salinity Laboratory, USDA-ARS, 450 W. Big Springs Rd., Riverside, CA 92507, USA
| | - Stanley Park
- US Salinity Laboratory, USDA-ARS, 450 W. Big Springs Rd., Riverside, CA 92507, USA
| | - Daisy Herrera
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92507, USA
| | - Daniel Ashworth
- US Salinity Laboratory, USDA-ARS, 450 W. Big Springs Rd., Riverside, CA 92507, USA
| | - Michael Schmidt
- US Salinity Laboratory, USDA-ARS, 450 W. Big Springs Rd., Riverside, CA 92507, USA
| | - Yujie Men
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92507, USA
| | - Jorge F S Ferreira
- US Salinity Laboratory, USDA-ARS, 450 W. Big Springs Rd., Riverside, CA 92507, USA
| | - Abasiofiok M Ibekwe
- US Salinity Laboratory, USDA-ARS, 450 W. Big Springs Rd., Riverside, CA 92507, USA.
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Tavares RDS, Fidalgo C, Rodrigues ET, Tacão M, Henriques I. Integron-associated genes are reliable indicators of antibiotic resistance in wastewater despite treatment- and seasonality-driven fluctuations. WATER RESEARCH 2024; 258:121784. [PMID: 38761599 DOI: 10.1016/j.watres.2024.121784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 05/06/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
The present study aims to characterize the bacterial community, resistome and integron abundance of a municipal wastewater treatment plant (WWTP) over the course of 12 months and evaluate the year-long performance of integron-related genes as potential indicators of antibiotic resistance mechanisms in influents and effluents. For that, total DNA was extracted and subjected to 16S rRNA-targeted metabarcoding, high-throughput (HT) qPCR (48 targets) and standard qPCR (5 targets). Targets included integrase genes, antibiotic resistance genes (ARGs) and putative pathogenic groups. A total of 16 physicochemical parameters determined in the wastewater samples were also considered. Results revealed that the WWTP treatment significantly impacted the bacterial community, as well as the content in ARGs and integrase genes. Indeed, there was a relative enrichment from influent to effluent of 13 pathogenic groups (e.g., Legionella and Mycobacterium) and genes conferring resistance to sulphonamides, aminoglycosides and disinfectants. Effluent samples (n = 25) also presented seasonal differences, with an increase of the total ARGs' concentration in summer, and differences between winter and summer on relative abundance of sulphonamide and disinfectant resistance mechanisms. From the eight putative integron-related genes selected, all were positively correlated with the total ARGs' content in wastewater and the relative abundance of resistance to most of the specific antibiotic classes. The genes intI1, blaGES and qacE∆1 were the most strongly correlated with the total concentration of ARGs. Genes blaGES and blaVIM, were better correlated to resistance to beta-lactams, aminoglycosides and tetracyclines. This study supports the use of integron-related genes as powerful indicators of antibiotic resistance in wastewater, being robust despite the variability caused by wastewater treatment and seasonality.
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Affiliation(s)
- Rafael D S Tavares
- Department of Life Sciences, Centre for Functional Ecology, Associate Laboratory TERRA, Faculty of Sciences and Technology, University of Coimbra, 3000-456, Coimbra, Portugal; Centre for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Cátia Fidalgo
- Centre for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Elsa T Rodrigues
- Department of Life Sciences, Centre for Functional Ecology, Associate Laboratory TERRA, Faculty of Sciences and Technology, University of Coimbra, 3000-456, Coimbra, Portugal
| | - Marta Tacão
- Centre for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Isabel Henriques
- Department of Life Sciences, Centre for Functional Ecology, Associate Laboratory TERRA, Faculty of Sciences and Technology, University of Coimbra, 3000-456, Coimbra, Portugal
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Mu M, Yang F, Han B, Tian G, Zhang K. Vermicompost: In situ retardant of antibiotic resistome accumulation in cropland soils. J Environ Sci (China) 2024; 141:277-286. [PMID: 38408828 DOI: 10.1016/j.jes.2023.05.032] [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: 02/02/2023] [Revised: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 02/28/2024]
Abstract
The dissemination of antibiotic resistance genes (ARGs) in soil has become a global environmental issue. Vermicomposting is gaining prominence in agricultural practices as a soil amendment to improve soil quality. However, its impact on soil ARGs remains unclear when it occurs in farmland. We comprehensively explored the evolution and fate of ARGs and their hosts in the field soil profiles under vermicompost application for more than 3 years. Vermicompost application increased several ARG loads in soil environment but decreased the high-risk bla-ARGs (blaampC, blaNDM, and blaGES-1) by log(0.04 - 0.43). ARGs in soil amended with vermicompost primarily occurred in topsoil (approximately 1.04-fold of unfertilized soil), but it is worth noting that their levels in the 40-60 cm soil layer were the same or even less than in the unfertilized soil. The microbial community structure changed in soil profiles after vermicompost application. Vermicompost application altered the microbial community structure in soil profiles, showing that the dominant bacteria (i.e., Proteobacteria, Actinobacteriota, Firmicutes) were decreased 2.62%-5.48% with the increase of soil depth. A network analysis further revealed that most of ARG dominant host bacteria did not migrate from surface soil to deep soil. In particular, those host bacteria harboring high-risk bla-ARGs were primarily concentrated in the surface soil. This study highlights a lower risk of the propagation of ARGs caused by vermicompost application and provides a novel approach to reduce and relieve the dissemination of ARGs derived from animals in agricultural production.
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Affiliation(s)
- Meirui Mu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Fengxia Yang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China.
| | - Bingjun Han
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Guisheng Tian
- Wuxue City Agriculture and Rural Bureau, Wuhan 435400, China
| | - Keqiang Zhang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Key Laboratory of Low-carbon Green Agriculture in North China, Ministry of Agriculture and Rural Affairs P. R. China, Beijing 10083, China.
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Della-Negra O, Camotti Bastos M, Bru-Adan V, Santa-Catalina G, Ait-Mouheb N, Chiron S, Heran M, Wéry N, Patureau D. Role of endogenous soil microorganisms in controlling antimicrobial resistance after the exposure to treated wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 931:172977. [PMID: 38703836 DOI: 10.1016/j.scitotenv.2024.172977] [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: 11/23/2023] [Revised: 05/01/2024] [Accepted: 05/02/2024] [Indexed: 05/06/2024]
Abstract
The reuse of treated wastewater (TWW) for irrigation appears to be a relevant solution to the challenges of growing water demand and scarcity. However, TWW contains not only micro-pollutants including pharmaceutical residues but also antibiotic resistant bacteria. The reuse of TWW could contribute to the dissemination of antimicrobial resistance in the environment. The purpose of this study was to assess if exogenous bacteria from irrigation waters (TWW or tap water-TP) affect endogenous soil microbial communities (from 2 soils with distinct irrigation history) and key antibiotic resistance gene sul1 and mobile genetic elements intl1 and IS613. Experiments were conducted in microcosms, irrigated in one-shot, and monitored for three months. Results showed that TP or TWW exposure induced a dynamic response of soil microbial communities but with no significant increase of resistance and mobile gene abundances. However, no significant differences were observed between the two water types in the current experimental design. Despite this, the 16S rDNA analysis of the two soils irrigated for two years either with tap water or TWW resulted in soil microbial community differentiation and the identification of biomarkers from Xanthomonadaceae and Planctomycetes families for soils irrigated with TWW. Low-diversity soils were more sensitive to the addition of TWW. Indeed, TWW exposure stimulated the growth of bacterial genera known to be pathogenic, correlating with a sharp increase in the copy number of selected resistance genes (up to 3 logs). These low-diversity soils could thus enable the establishment of exogenous bacteria from TWW which was not observed with native soils. In particular, the emergence of Planctomyces, previously suggested as a biomarker of soil irrigated by TWW, was here demonstrated. Finally, this study showed that water input frequency, initial soil microbial diversity and soil history drive changes within soil endogenous communities and the antibiotic resistance gene pool.
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Affiliation(s)
- Oriane Della-Negra
- INRAE, University of Montpellier, LBE, Av. des Étangs, 11100 Narbonne, France; UMR HydroSciences Montpellier, University of Montpellier, IRD, CNRS, 15 Av. Charles Flahault, 34093 Montpellier cedex 5, France.
| | - Marília Camotti Bastos
- INRAE, University of Montpellier, LBE, Av. des Étangs, 11100 Narbonne, France; UMR HydroSciences Montpellier, University of Montpellier, IRD, CNRS, 15 Av. Charles Flahault, 34093 Montpellier cedex 5, France
| | - Valérie Bru-Adan
- INRAE, University of Montpellier, LBE, Av. des Étangs, 11100 Narbonne, France
| | | | - Nassim Ait-Mouheb
- INRAE, University of Montpellier, UMR GEAU, 361 rue Jean-François Breton, 34196 Montpellier, France
| | - Serge Chiron
- UMR HydroSciences Montpellier, University of Montpellier, IRD, CNRS, 15 Av. Charles Flahault, 34093 Montpellier cedex 5, France
| | - Marc Heran
- IEM, University of Montpellier, Montpellier, France
| | - Nathalie Wéry
- INRAE, University of Montpellier, LBE, Av. des Étangs, 11100 Narbonne, France
| | - Dominique Patureau
- INRAE, University of Montpellier, LBE, Av. des Étangs, 11100 Narbonne, France
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Wu S, Wang S, Dong Y, Li X, Zhuang X. Non-negligible roles of upstream rivers in determining the antibiotic resistance genes community in an interconnected river-lake system (Dongting lake, China). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:173926. [PMID: 38906289 DOI: 10.1016/j.scitotenv.2024.173926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/02/2024] [Accepted: 06/09/2024] [Indexed: 06/23/2024]
Abstract
Emergence and spread of antibiotic resistance genes (ARGs) in lakes have been considered as a global health threat. However, a thorough understanding of the distribution patterns and ecological processes that shape the ARGs profile in interconnected river-lake systems remains largely unexplored. In this study, we collected paired water and sediment samples from a typical interconnected river-lake system, Dongting Lake in China, during both wet and dry seasons. Using high-throughput quantitative PCR, we investigated the spatial and temporal distribution of ARGs and the factors that influence them. A total of 8 major antibiotic classes and 10 mobile genetic elements were detected across the Dongting Lake basin. The unique hydrological characteristics of this interconnected river-lake system result in a relatively stable abundance of ARGs across different seasons and interfaces. During the wet season, deterministic processes dominated the assembly of ARGs, allowing environmental factors, such as heavy metals, to serve as main driving forces of ARGs distribution. When the dry season arrived, variations in hydrological conditions and changes in ARGs sources caused stochastic processes to dominate the assembly of ARGs. Our findings provide valuable insights for understanding the ecological processes of ARGs in interconnected river-lake systems, emphasizing the necessity of upstream restoration and clarifying river-lake relationships to mitigate ARGs dissemination.
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Affiliation(s)
- Shanghua Wu
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shijie Wang
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuzhu Dong
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xianglong Li
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuliang Zhuang
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China.
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Meng Z, Mo X, Xue Q, Wang Z, Lu X, Liu J, Ma Q, Sparks JP, He M. Distribution, source apportionment, and ecological risk assessment of soil antibiotic resistance genes in urban green spaces. ENVIRONMENTAL RESEARCH 2024; 251:118601. [PMID: 38447608 DOI: 10.1016/j.envres.2024.118601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/24/2024] [Accepted: 02/28/2024] [Indexed: 03/08/2024]
Abstract
Urban green spaces play a crucial role in cities by providing near-natural environments that greatly impacts the health of residents. However, these green spaces have recently been scrutinized as potential reservoirs of antibiotic resistance genes (ARGs), posing significant ecological risks. Despite this concern, our understanding of the distribution, sources, and ecological risks associated with ARGs remains limited. In this study, we investigated the spatial distribution of soil ARGs using spatial interpolation and auto-correlation analysis. To apportion the source of soil ARGs in urban green spaces of Tianjin, Geo-detector method (GDM) was employed. Furthermore, we evaluated the ecological risk posed by ARGs employing risk quotients (RQ). The results of our study showed a significantly higher abundance of Quinolone resistance genes in the soil of urban green spaces in Tianjin. These genes were mainly found in the northwest, central, and eastern regions of the city. Our investigation identified three main factors contributing to the presence of soil ARGs: antibiotic production, precipitation, livestock breeding, and hospital. The results of ecological risk in RQ value showed a high risk associated with Quinolone resistance genes, followed by Aminoglycoside, Tetracycline, Multidrug, MLSB, Beta Lactam, Sulfonamide, and Chloramphenicol. Mantel-test and correlation analysis revealed that the ecological risk of ARGs was greatly influenced by soil properties and heavy metals. This study provides a new perspective on source apportionment and the ecological risk assessment of soil ARGs in urban green spaces.
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Affiliation(s)
- Zirui Meng
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin, 300382, China; Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin, 300382, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing, 100012, China
| | - Xunqiang Mo
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin, 300382, China
| | - Qing Xue
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin, 300382, China
| | - Ziyi Wang
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin, 300382, China
| | - Xueqiang Lu
- College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Jie Liu
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Center for Grassland Microbiome, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Qinqin Ma
- College of Life Science, Sichuan Normal University, Sichuan, 610066, China
| | - Jed P Sparks
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Mengxuan He
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin, 300382, China; Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin, 300382, China.
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Hou Y, Diao W, Jia R, Sun W, Feng W, Li B, Zhu J. Variations in antibiotic resistomes associated with archaeal, bacterial, and viral communities affected by integrated rice-fish farming in the paddy field ecosystem. ENVIRONMENTAL RESEARCH 2024; 251:118717. [PMID: 38518910 DOI: 10.1016/j.envres.2024.118717] [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: 11/30/2023] [Revised: 02/29/2024] [Accepted: 03/12/2024] [Indexed: 03/24/2024]
Abstract
Antibiotic resistance genes (ARGs) serving as a newly recognized pollutant that poses potential risks to global human health, which in the paddy soil can be potentially altered by different agricultural production patterns. To elucidate the impacts and mechanisms of the widely used and sustainable agricultural production pattern, namely integrated rice-fish farming, on the antibiotic resistomes, we applied metagenomic sequencing to assess ARGs, mobile genetic elements (MGEs), bacteria, archaea, and viruses in paddy soil. There were 20 types and 359 subtypes of ARGs identified in paddy soil. The integrated rice-fish farming reduced the ARG and MGE diversities and the abundances of dominant ARGs and MGEs. Significantly decreased ARGs were mainly antibiotic deactivation and regulator types and primarily ranked level IV based on their potential threat to human health. The integrated rice-fish farming decreased the alpha diversities and altered microbial community compositions. MGEs, bacteria, archaea, and virus exhibited significant correlations with ARGs, while integrated rice-fish farming effectively changed their interrelationships. Viruses, bacteria, and MGEs played crucial roles in affecting the ARGs by the integrated rice-fish farming. The most crucial pathway by which integrated rice-fish farming affected ARGs was through the modulation of viral communities, thereby directly or indirectly influencing ARG abundance. Our research contributed to the control and restoration of ARGs pollution from a new perspective and providing theoretical support for the development of clean and sustainable agricultural production.
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Affiliation(s)
- Yiran Hou
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Weixu Diao
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Rui Jia
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Wei Sun
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Wenrong Feng
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Bing Li
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China.
| | - Jian Zhu
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China.
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Blanco-Peña K, Quesada-Alvarado F, Salas-González D, Estrada-König S, Salom-Pérez R, Arroyo-Arce S, Villalobos-Araya A, Rivera-Castillo J, Martín-Maldonado B, Corrales-Gutiérrez D, Gallardo-Castro V, Gutiérrez-Espeleta G, Chaves A, Esperón F, Chaverri-Fonseca F. A multidisciplinary approach to analyze the antimicrobial resistance in natural ecosystems. ENVIRONMENTAL RESEARCH 2024; 251:118549. [PMID: 38412915 DOI: 10.1016/j.envres.2024.118549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/07/2024] [Accepted: 02/23/2024] [Indexed: 02/29/2024]
Abstract
Antimicrobial Resistance (AMR) poses a global threat to both human health and environmental well-being. Our study delved into Costa Rican wildlife reserves, uncovering a substantial human impact on these ecosystems and underscoring the imperative to pinpoint AMR hotspots. Embracing a One Health perspective, we advocated for a comprehensive landscape analysis that intricately intertwined geographic, climatic, forest, and human factors. This study illuminated the link between laboratory results and observed patterns of antimicrobial use, thereby paving the way for sustainable solutions. Our innovative methodology involved deploying open-ended questions to explore antimicrobial usage across livestock activities, contributing to establishing a comprehensive methodology. Non-invasive sampling in wildlife emerged as a critical aspect, shedding light on areas contaminated by AMR. Feline species, positioned at the apex of the food chain, acted as sentinels for environmental health due to heightened exposure to improperly disposed waste. Regarding laboratory findings, each sample revealed the presence of at least one antimicrobial resistance gene (ARG). Notably, genes encoding resistance to tetracyclines dominated (94.9%), followed by beta-lactams (75.6%), sulfonamides (53.8%), aminoglycosides (51.3%), quinolones (44.9%), phenicols (25.6%), and macrolides (20.5%). Genes encoding polymyxins were not detected. Moreover, 66% of samples carried a multi-resistant microbiome, with 15% exhibiting resistance to three antimicrobial families and 51% to four. The absence of a correlation between forest coverage and ARG presence underscored the profound human impact on wildlife reserves, surpassing previous estimations. This environmental pressure could potentially modify microbiomes and resistomes in unknown ways. As not all antimicrobial families encoding ARGs were utilized by farmers, our next step involved evaluating other human activities to identify the primary sources of contamination. This comprehensive study contributed crucial insights into the intricate dynamics of AMR in natural ecosystems, paving the way for targeted interventions and sustainable coexistence.
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Affiliation(s)
- Kinndle Blanco-Peña
- Universidad Nacional, Costa Rica. Instituto Regional de Estudios en Sustancias Tóxicas (IRET), Costa Rica.
| | - Francisco Quesada-Alvarado
- Universidad Nacional, Costa Rica. Instituto Regional de Estudios en Sustancias Tóxicas (IRET), Costa Rica
| | - Denis Salas-González
- Universidad Nacional, Costa Rica. Instituto Regional de Estudios en Sustancias Tóxicas (IRET), Costa Rica
| | | | | | | | | | | | - Bárbara Martín-Maldonado
- Veterinary Department, School of Biomedical and Health Sciences, Universidad Europea de Madrid, Spain
| | | | | | | | - Andrea Chaves
- School of Biology, Universidad de Costa Rica, San Pedro, Costa Rica
| | - Fernando Esperón
- Veterinary Department, School of Biomedical and Health Sciences, Universidad Europea de Madrid, Spain
| | - Fabio Chaverri-Fonseca
- Universidad Nacional, Costa Rica. Instituto Regional de Estudios en Sustancias Tóxicas (IRET), Costa Rica
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10
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Cuco A, Mkupasi E, Mzula A, Mdegela R. Non-typhoidal Salmonella contributes to gastrointestinal infections in Morogoro: Evidence from patients attending Morogoro regional referral hospital in Tanzania. PLoS Negl Trop Dis 2024; 18:e0012249. [PMID: 38848444 PMCID: PMC11189249 DOI: 10.1371/journal.pntd.0012249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 06/20/2024] [Accepted: 05/27/2024] [Indexed: 06/09/2024] Open
Abstract
INTRODUCTION Salmonella is one of the most common causes of food-borne outbreaks and infection worldwide. Non-typhoidal Salmonella (NTS) infections are common and remain a significant public health problem among important bacterial foodborne diseases. The current study aimed to establish the Non typhoidal Salmonella infection and antimicrobial resistance status among selected patients at Morogoro Regional Referral Hospital (MRRH), Morogoro Region, Tanzania, to inform clinical care management and public health interventions. METHODOLOGY A cross-sectional study was conducted using medical records and samples were collected from hospitalised and outpatients between October and December 2021. A total of 153 participants were enrolled in the study and 132 consented to being sampled. The collected samples were analysed using standard microbiological techniques. The isolates were subjected to molecular genotyping, where Polymerase Chain Reaction (PCR) was performed targeting the 16S rDNA gene. PCR products were then submitted for sequencing to establish phylogenetic relatedness. Antimicrobial susceptibility testing and resistance genes screening were also conducted. RESULTS The phylogenetic analysis identified two Salmonella serovars; Salmonella Enteritidis and Salmonella Typhimurium. The isolates were from four adults and seven children patients. The isolates were tested against six antimicrobial agents: tetracycline, trimethoprim, gentamycin, ciprofloxacin, ampicillin and cefotaxime. Further antimicrobial assays were performed by screening 10 antimicrobial resistance genes using PCR. Overall, the highest resistance was observed in ampicillin (100%), whereas the lowest resistance was recorded for ciprofloxacin and gentamicin (9.1%). In addition, four (36.4%) of the isolates were resistant to cefotaxime and three (27.3%) to tetracycline and trimethoprim. The isolates also exhibit the presence of resistance genes for sulfamethoxazole 1&2, tetracycline (tet) A&B, Beta-lactamase CTXM, Beta-lactamase TEM, Beta-lactamase SHV, Gentamycine, Acra and acc3-1 in different occurrences. The overall prevalence of Salmonella species in Morogoro region was 8.3% (11/132) with Salmonella Enteritidis and Salmonella Typhimurium being the only serovars detected from adults and children stool samples. CONCLUSION Our investigation showed that both children and adults had been exposed to Salmonella spp. However, the occurrence of NTS was higher in children (5.3% (7/132) compared to adults (3.0% (4/132). To stop zoonotic infections and the development of antimicrobial resistance in the community, this calls for Infection Prevention and Control (IPC) and stewardship programmes on rational use of antimicrobials in both health facilities and at the community level.
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Affiliation(s)
- Anacleta Cuco
- Department of Veterinary Medicine and Public Health, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Ernatus Mkupasi
- Department of Veterinary Medicine and Public Health, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Alexanda Mzula
- Department of Microbiology, Parasitology and Biotechnology, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Robinson Mdegela
- Department of Veterinary Medicine and Public Health, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
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11
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Joannard B, Sanchez-Cid C. Bacterial dynamics of the plastisphere microbiome exposed to sub-lethal antibiotic pollution. MICROBIOME 2024; 12:97. [PMID: 38790062 PMCID: PMC11127405 DOI: 10.1186/s40168-024-01803-2] [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: 12/04/2023] [Accepted: 03/27/2024] [Indexed: 05/26/2024]
Abstract
BACKGROUND Antibiotics and microplastics are two major aquatic pollutants that have been associated to antibiotic resistance selection in the environment and are considered a risk to human health. However, little is known about the interaction of these pollutants at environmental concentrations and the response of the microbial communities in the plastisphere to sub-lethal antibiotic pollution. Here, we describe the bacterial dynamics underlying this response in surface water bacteria at the community, resistome and mobilome level using a combination of methods (next-generation sequencing and qPCR), sequencing targets (16S rRNA gene, pre-clinical and clinical class 1 integron cassettes and metagenomes), technologies (short and long read sequencing), and assembly approaches (non-assembled reads, genome assembly, bacteriophage and plasmid assembly). RESULTS Our results show a shift in the microbial community response to antibiotics in the plastisphere microbiome compared to surface water communities and describe the bacterial subpopulations that respond differently to antibiotic and microplastic pollution. The plastisphere showed an increased tolerance to antibiotics and selected different antibiotic resistance bacteria (ARB) and antibiotic resistance genes (ARGs). Several metagenome assembled genomes (MAGs) derived from the antibiotic-exposed plastisphere contained ARGs, virulence factors, and genes involved in plasmid conjugation. These include Comamonas, Chryseobacterium, the opportunistic pathogen Stenotrophomonas maltophilia, and other MAGs belonging to genera that have been associated to human infections, such as Achromobacter. The abundance of the integron-associated ciprofloxacin resistance gene aac(6')-Ib-cr increased under ciprofloxacin exposure in both freshwater microbial communities and in the plastisphere. Regarding the antibiotic mobilome, although no significant changes in ARG load in class 1 integrons and plasmids were observed in polluted samples, we identified three ARG-containing viral contigs that were integrated into MAGs as prophages. CONCLUSIONS This study illustrates how the selective nature of the plastisphere influences bacterial response to antibiotics at sub-lethal selective pressure. The microbial changes identified here help define the selective role of the plastisphere and its impact on the maintenance of environmental antibiotic resistance in combination with other anthropogenic pollutants. This research highlights the need to evaluate the impact of aquatic pollutants in environmental microbial communities using complex scenarios with combined stresses. Video Abstract.
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Affiliation(s)
- Brune Joannard
- Université de Lyon, Université Claude Bernard Lyon 1, UMR CNRS 5557, UMR INRAe 1418, VetAgro Sup, Ecologie Microbienne, 69622, Villeurbanne, France
| | - Concepcion Sanchez-Cid
- Université de Lyon, Université Claude Bernard Lyon 1, UMR CNRS 5557, UMR INRAe 1418, VetAgro Sup, Ecologie Microbienne, 69622, Villeurbanne, France.
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12
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Zalewska M, Błażejewska A, Szadziul M, Ciuchciński K, Popowska M. Effect of composting and storage on the microbiome and resistome of cattle manure from a commercial dairy farm in Poland. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:30819-30835. [PMID: 38616224 PMCID: PMC11096248 DOI: 10.1007/s11356-024-33276-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: 01/30/2024] [Accepted: 04/06/2024] [Indexed: 04/16/2024]
Abstract
Manure from food-producing animals, rich in antibiotic-resistant bacteria and antibiotic resistance genes (ARGs), poses significant environmental and healthcare risks. Despite global efforts, most manure is not adequately processed before use on fields, escalating the spread of antimicrobial resistance. This study examined how different cattle manure treatments, including composting and storage, affect its microbiome and resistome. The changes occurring in the microbiome and resistome of the treated manure samples were compared with those of raw samples by high-throughput qPCR for ARGs tracking and sequencing of the V3-V4 variable region of the 16S rRNA gene to indicate bacterial community composition. We identified 203 ARGs and mobile genetic elements (MGEs) in raw manure. Post-treatment reduced these to 76 in composted and 51 in stored samples. Notably, beta-lactam, cross-resistance to macrolides, lincosamides and streptogramin B (MLSB), and vancomycin resistance genes decreased, while genes linked to MGEs, integrons, and sulfonamide resistance increased after composting. Overall, total resistance gene abundance significantly dropped with both treatments. During composting, the relative abundance of genes was lower midway than at the end. Moreover, higher biodiversity was observed in samples after composting than storage. Our current research shows that both composting and storage effectively reduce ARGs in cattle manure. However, it is challenging to determine which method is superior, as different groups of resistance genes react differently to each treatment, even though a notable overall reduction in ARGs is observed.
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Affiliation(s)
- Magdalena Zalewska
- Department of Bacterial Physiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Aleksandra Błażejewska
- Department of Bacterial Physiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Mateusz Szadziul
- Department of Bacterial Physiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Karol Ciuchciński
- Department of Environmental Microbiology and Biotechnology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Magdalena Popowska
- Department of Bacterial Physiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland.
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13
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Daw Elbait G, Daou M, Abuoudah M, Elmekawy A, Hasan SW, Everett DB, Alsafar H, Henschel A, Yousef AF. Comparison of qPCR and metagenomic sequencing methods for quantifying antibiotic resistance genes in wastewater. PLoS One 2024; 19:e0298325. [PMID: 38578803 PMCID: PMC10997137 DOI: 10.1371/journal.pone.0298325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 01/18/2024] [Indexed: 04/07/2024] Open
Abstract
Surveillance methods of circulating antibiotic resistance genes (ARGs) are of utmost importance in order to tackle what has been described as one of the greatest threats to humanity in the 21st century. In order to be effective, these methods have to be accurate, quickly deployable, and scalable. In this study, we compare metagenomic shotgun sequencing (TruSeq DNA sequencing) of wastewater samples with a state-of-the-art PCR-based method (Resistomap HT-qPCR) on four wastewater samples that were taken from hospital, industrial, urban and rural areas. ARGs that confer resistance to 11 antibiotic classes have been identified in these wastewater samples using both methods, with the most abundant observed classes of ARGs conferring resistance to aminoglycoside, multidrug-resistance (MDR), macrolide-lincosamide-streptogramin B (MLSB), tetracycline and beta-lactams. In comparing the methods, we observed a strong correlation of relative abundance of ARGs obtained by the two tested methods for the majority of antibiotic classes. Finally, we investigated the source of discrepancies in the results obtained by the two methods. This analysis revealed that false negatives were more likely to occur in qPCR due to mutated primer target sites, whereas ARGs with incomplete or low coverage were not detected by the sequencing method due to the parameters set in the bioinformatics pipeline. Indeed, despite the good correlation between the methods, each has its advantages and disadvantages which are also discussed here. By using both methods together, a more robust ARG surveillance program can be established. Overall, the work described here can aid wastewater treatment plants that plan on implementing an ARG surveillance program.
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Affiliation(s)
- Gihan Daw Elbait
- Department of Biological Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Mariane Daou
- Department of Biological Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Miral Abuoudah
- Department of Biological Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Ahmed Elmekawy
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Shadi W. Hasan
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Dean B. Everett
- Department of Pathology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Center for Biotechnology (BTC), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Infection Research Unit, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Habiba Alsafar
- Center for Biotechnology (BTC), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Emirates Bio-research Center, Ministry of Interior, Abu Dhabi, United Arab Emirates
- Department of Biomedical Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Andreas Henschel
- Department of Electrical Engineering and Computer Science, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Ahmed F. Yousef
- Department of Biological Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Center for Biotechnology (BTC), Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
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14
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Bao F, Zhou Y, Zhang Z, Du Y, Zhang H, Huang Y. A perspective of spatial variability and ecological risks of antibiotics in the agricultural-pastoral ecotone soils in eastern Inner Mongolia. CHEMOSPHERE 2024; 353:141627. [PMID: 38447899 DOI: 10.1016/j.chemosphere.2024.141627] [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: 10/23/2023] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/08/2024]
Abstract
Antibiotics have garnered growing attention as pharmaceuticals ubiquitously present in human society. Within the soil environment, antibiotics exhibit a propensity for high environmental persistence, thereby posing a potential threat to the ecosystem. However, research on antibiotics in agricultural-pastoral ecotone soils is scarce. This study investigates the occurrence, distribution and risk of 11 common antibiotics in agricultural soils of the agro-pastoral transition zone in Horqin Left Middle Banner, eastern Inner Mongolia. The total concentration varies from not detectable to 609.62 μg/kg. Tetracyclines are the dominant antibiotic, with a higher detection frequency than Macrolides and Sulfonamides. The detection rates of the three types of antibiotics differ significantly. The study also finds that soil properties (organic matter content, pH, bulk density, clay, cation exchange capacity have no significant correlation with antibiotics in soil. Moreover, spatial regression analysis reveals that population density is the primary factor influencing the spatial distribution of antibiotics in soil. Ecological risk assessment shows that clarithromycin and erythromycin are the two most harmful factors in the ecological risk of agricultural soil.
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Affiliation(s)
- Feifei Bao
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, PR China
| | - Yang Zhou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, PR China
| | - Zhengyu Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, PR China
| | - Yuhan Du
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, PR China
| | - Hongyan Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, PR China.
| | - Yuanfang Huang
- Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture and Rural Affairs, College of Land Science and Technology, China Agricultural University, Beijing, 100193, PR China.
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15
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Itzhari D, Shuai W, Hartmann EM, Ronen Z. Heterogeneous Antibiotic Resistance Gene Removal Impedes Evaluation of Constructed Wetlands for Effective Greywater Treatment. Antibiotics (Basel) 2024; 13:315. [PMID: 38666991 PMCID: PMC11047525 DOI: 10.3390/antibiotics13040315] [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: 03/04/2024] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/29/2024] Open
Abstract
Microorganisms carrying antimicrobial resistance genes are often found in greywater. As the reuse of greywater becomes increasingly needed, it is imperative to determine how greywater treatment impacts antimicrobial resistance genes (ARGs). Using qPCR and SmartChip™ qPCR, we characterized ARG patterns in greywater microbial communities before, during, and after treatment by a recirculating vertical flow constructed wetland. In parallel, we examined the impact of greywater-treated irrigation on soil, including the occurrence of emerging micropollutants and the taxonomic and ARG compositions of microbial communities. Most ARGs in raw greywater are removed efficiently during the winter season, while some ARGs in the effluents increase in summer. SmartChip™ qPCR revealed the presence of ARGs, such as tetracycline and beta-lactam resistance genes, in both raw and treated greywater, but most abundantly in the filter bed. It also showed that aminoglycoside and vancomycin gene abundances significantly increased after treatment. In the irrigated soil, the type of water (potable or treated greywater) had no specific impact on the total bacterial abundance (16S rRNA gene). No overlapping ARGs were found between treated greywater and greywater-irrigated soil. This study indicates ARG abundance and richness increased after treatment, possibly due to the concentration effects of the filter beds.
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Affiliation(s)
- Daniella Itzhari
- Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Beersheba 8499000, Israel;
| | - Weitao Shuai
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA; (W.S.); (E.M.H.)
| | - Erica M. Hartmann
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA; (W.S.); (E.M.H.)
- Center for Synthetic Biology, Northwestern University, Evanston, IL 60208, USA
- Division of Pulmonary Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Zeev Ronen
- Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Beersheba 8499000, Israel;
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16
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Yao T, Ye L, Wang S, Lu J, Li H, Yu G. Effects of cadmium exposure on gut microbiota and antibiotic resistance genes in Haliotis diversicolor abalone. CHEMOSPHERE 2024; 352:141507. [PMID: 38387663 DOI: 10.1016/j.chemosphere.2024.141507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 12/03/2023] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Abstract
Heavy metals in soil, water, and industrial production can affect the antibiotic resistance of bacteria. Antibiotic resistance in gut microbiota has been extensively researched. The effects of cadmium (Cd) was investigated on the gut microbiota and antibiotic resistance genes (ARGs) of Haliotis diversicolor, a commercially important abalone species. By exposing H. diversicolor to four concentrations of Cd (0 μg L-1 (control), 6.5 μg L-1 (low), 42.25 μg L-1 (medium), and 274.63 μg L-1 (high)) for 30 and 60 days, 16 types of ARG (aadA-01, aadA-02, cfr, dfrA1, ermB, floR, folA, mecA, sul2, tetB-01, tetC-01, tetD-01, tetG-01, tetM-02, tetQ, vanC-01), and 1213 genus and 27 phylum microbiomes were detected. ARGs can be resistant to aminoglycoside, beta-lactamase, macrolide-lincosamide-streptogramin B, multidrug, florfenicol, macrolide, sulfonamides, tetracyclines, and vancomycin. Cadmium exposure significantly alters the abundance of tetC-01, tetB-01, tetQ, sul2, and aadA-01. About 5% (61) of genus-level microorganisms were significantly affected by Cd exposure. Microbiota alpha and beta diversities in the 60-day 42.25 μg L-1 Cd treatment differed significantly from those in other treatments. In addition, 26 pathogens were detected, and two pathogens (Vibrio and Legionella) were significantly affected by Cd exposure. Significant correlations between pathogens and ARGs increased with increased Cd concentration after 60 days of Cd exposure. Cadmium exposure may cause gut microbiota disturbance in H. diversicolor and increase the likelihood of ARG transfer to pathogens, increasing potential ecological and economic risks.
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Affiliation(s)
- Tuo Yao
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Research Center of Hydrobiology, Jinan University, Guangzhou, China
| | - Lingtong Ye
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.
| | - Sijie Wang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Jie Lu
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Huan Li
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Gang Yu
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
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17
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Sacristán-Soriano O, Jarma D, Sánchez MI, Romero N, Alonso E, Green AJ, Sànchez-Melsió A, Hortas F, Balcázar JL, Peralta-Sánchez JM, Borrego CM. Winged resistance: Storks and gulls increase carriage of antibiotic resistance by shifting from paddy fields to landfills. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169946. [PMID: 38199372 DOI: 10.1016/j.scitotenv.2024.169946] [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: 10/23/2023] [Revised: 12/15/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
Waterbirds are vectors for the dissemination of antimicrobial resistance across environments, with some species increasingly reliant on highly anthropized habitats for feeding. However, data on the impact of their feeding habits on the carriage of antibiotic resistance genes (ARGs) are still scarce. To fill this gap, we examined the microbiota (16S rRNA amplicon gene sequencing) and the prevalence of ARG (high-throughput qPCR of 47 genes) in faeces from white storks (Ciconia ciconia) and lesser black-backed gulls (Larus fuscus) feeding in highly (landfill) and less (paddy fields) polluted habitats. Faecal bacterial richness and diversity were higher in gulls feeding upon landfills and showed a greater abundance of potential pathogens, such as Staphylococcus. In contrast, faecal bacterial communities from storks were similar regardless of habitat preferences, maybe due to a less intense habitat use compared to gulls. In addition, birds feeding in the landfill carried a higher burden of ARGs compared to the surrounding soil and surface waters. Network analysis revealed strong correlations between ARGs and potential pathogens, particularly between tetM (resistance to tetracyclines), blaCMY (beta-lactam resistance), sul1 (sulfonamide resistance) and members of the genera Streptococcus, Peptostreptococcus, and Peptoclostridium. Our work demonstrates how transitioning from paddy fields to landfills fosters the carriage of ARGs and potential pathogens in the bird gut, shedding light on the ecological role of these avian vectors in antimicrobial resistance dissemination.
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Affiliation(s)
| | - Dayana Jarma
- Departamento de Biología de la Conservación y Cambio Global, Estación Biológica de Doñana EBD-CSIC, Avda. Américo Vespucio 26, 41092, Sevilla, Spain; Departamento de Biología, Instituto Universitario de Investigación Marina (INMAR), Universidad de Cádiz, Avda. República Saharaui, s/n, 11510, Puerto Real, Cádiz, Spain.
| | - Marta I Sánchez
- Departamento de Biología de la Conservación y Cambio Global, Estación Biológica de Doñana EBD-CSIC, Avda. Américo Vespucio 26, 41092, Sevilla, Spain
| | - Noelia Romero
- Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Avda. Reina Mercedes s/n, 41012 Sevilla, Spain
| | - Esteban Alonso
- Departamento de Química Analítica, Escuela Politécnica Superior, Universidad de Sevilla, C/Virgen de África, 7, 41011 Sevilla, Spain
| | - Andy J Green
- Departamento de Biología de la Conservación y Cambio Global, Estación Biológica de Doñana EBD-CSIC, Avda. Américo Vespucio 26, 41092, Sevilla, Spain
| | | | - Francisco Hortas
- Departamento de Biología, Instituto Universitario de Investigación Marina (INMAR), Universidad de Cádiz, Avda. República Saharaui, s/n, 11510, Puerto Real, Cádiz, Spain
| | - José Luis Balcázar
- Institut Català de Recerca de l'Aigua (ICRA), Emili Grahit 101, E-17003 Girona, Spain
| | - Juan Manuel Peralta-Sánchez
- Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Avda. Reina Mercedes s/n, 41012 Sevilla, Spain; Departamento de Zoología, Universidad de Sevilla, Avda. Reina Mercedes s/n, 41012 Sevilla, Spain
| | - Carles M Borrego
- Institut Català de Recerca de l'Aigua (ICRA), Emili Grahit 101, E-17003 Girona, Spain; Grup d'Ecologia Microbiana Molecular, Institut d'Ecologia Aquàtica, Universitat de Girona, Campus de Montilivi, E-17003 Girona, Spain
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18
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Magalhães EA, de Jesus HE, Pereira PHF, Gomes AS, Santos HFD. Beach sand plastispheres are hotspots for antibiotic resistance genes and potentially pathogenic bacteria even in beaches with good water quality. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 344:123237. [PMID: 38159625 DOI: 10.1016/j.envpol.2023.123237] [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: 04/17/2023] [Revised: 12/06/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
Massive amounts of microplastics are transported daily from the oceans and rivers onto beaches. The ocean plastisphere is a hotspot and a vector for antibiotic resistance genes (ARGs) and potentially pathogenic bacteria. However, very little is known about the plastisphere in beach sand. Thus, to describe whether the microplastics from beach sand represent a risk to human health, we evaluated the bacteriome and abundance of ARGs on microplastic and sand sampled at the drift line and supralittoral zones of four beaches of poor and good water quality. The bacteriome was evaluated by sequencing of 16S rRNA gene, and the ARGs and bacterial abundances were evaluated by high-throughput real-time PCR. The results revealed that the microplastic harbored a bacterial community that is more abundant and distinct from that of beach sand, as well as a greater abundance of potential human and marine pathogens, especially the microplastics deposited closer to seawater. Microplastics also harbored a greater number and abundance of ARGs. All antibiotic classes evaluated were found in the microplastic samples, but not in the beach sand ones. Additionally, 16 ARGs were found on the microplastic alone, including genes related to multidrug resistance (blaKPC, blaCTX-M, tetM, mdtE and acrB_1), genes that have the potential to rapidly and horizontally spread (blaKPC, blaCTX-M, and tetM), and the gene that confers resistance to antibiotics that are typically regarded as the ultimate line of defense against severe multi-resistant bacterial infections (blaKPC). Lastly, microplastic harbored a similar bacterial community and ARGs regardless of beach water quality. Our findings suggest that the accumulation of microplastics in beach sand worldwide may constitute a potential threat to human health, even in beaches where the water quality is deemed satisfactory. This phenomenon may facilitate the emergence and dissemination of bacteria that are resistant to multiple drugs.
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Affiliation(s)
- Emily Amorim Magalhães
- Department of Marine Biology, Fluminense Federal University - UFF. St. Professor Marcos Waldemar de Freitas Reis, Niterói, RJ, 24210-201, Brazil
| | - Hugo Emiliano de Jesus
- Department of Marine Biology, Fluminense Federal University - UFF. St. Professor Marcos Waldemar de Freitas Reis, Niterói, RJ, 24210-201, Brazil
| | - Pedro Henrique Freitas Pereira
- Department of Marine Biology, Fluminense Federal University - UFF. St. Professor Marcos Waldemar de Freitas Reis, Niterói, RJ, 24210-201, Brazil
| | - Abílio Soares Gomes
- Department of Marine Biology, Fluminense Federal University - UFF. St. Professor Marcos Waldemar de Freitas Reis, Niterói, RJ, 24210-201, Brazil
| | - Henrique Fragoso Dos Santos
- Department of Marine Biology, Fluminense Federal University - UFF. St. Professor Marcos Waldemar de Freitas Reis, Niterói, RJ, 24210-201, Brazil.
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Rossi F, Duchaine C, Tignat-Perrier R, Joly M, Larose C, Dommergue A, Turgeon N, Veillette M, Sellegri K, Baray JL, Amato P. Temporal variations of antimicrobial resistance genes in aerosols: A one-year monitoring at the puy de Dôme summit (Central France). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169567. [PMID: 38145686 DOI: 10.1016/j.scitotenv.2023.169567] [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: 09/27/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 12/27/2023]
Abstract
The recent characterization of antibiotic resistance genes (ARGs) in clouds evidenced that the atmosphere actively partakes in the global spreading of antibiotic resistance worldwide. Indeed, the outdoor atmosphere continuously receives large quantities of particles of biological origins, emitted from both anthropogenic or natural sources at the near Earth's surface. Nonetheless, our understanding of the composition of the atmospheric resistome, especially at mid-altitude (i.e. above 1000 m a.s.l.), remains largely limited. The atmosphere is vast and highly dynamic, so that the diversity and abundance of ARGs are expected to fluctuate both spatially and temporally. In this work, the abundance and diversity of ARGs were assessed in atmospheric aerosol samples collected weekly between July 2016 and August 2017 at the mountain site of puy de Dôme (1465 m a.s.l., central France). Our results evidence the presence of 33 different subtypes of ARGs in atmospheric aerosols, out of 34 assessed, whose total concentration fluctuated seasonally from 59 to 1.1 × 105 copies m-3 of air. These were heavily dominated by genes from the quinolone resistance family, notably the qepA gene encoding efflux pump mechanisms, which represented >95 % of total ARGs concentration. Its abundance positively correlated with that of bacteria affiliated with the genera Kineococcus, Neorhizobium, Devosia or Massilia, ubiquitous in soils. This, along with the high abundance of Sphingomonas species, points toward a large contribution of natural sources to the airborne ARGs. Nonetheless, the increased contribution of macrolide resistance (notably the erm35 gene) during winter suggests a sporadic diffusion of ARGs from human activities. Our observations depict the atmosphere as an important vector of ARGs from terrestrial sources. Therefore, monitoring ARGs in airborne microorganisms appears necessary to fully understand the dynamics of antimicrobial resistances in the environment and mitigate the threats they may represent.
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Affiliation(s)
- Florent Rossi
- Département de biochimie, de microbiologie et de bio-informatique, Faculté́ des sciences et de génie, Université́ Laval, Québec, Canada; Centre de recherche de l'institut de cardiologie et de pneumologie de Québec, Québec, Canada
| | - Caroline Duchaine
- Département de biochimie, de microbiologie et de bio-informatique, Faculté́ des sciences et de génie, Université́ Laval, Québec, Canada; Centre de recherche de l'institut de cardiologie et de pneumologie de Québec, Québec, Canada; Canada Research Chair on Bioaerosols, Canada.
| | - Romie Tignat-Perrier
- Laboratoire Ampère, École Centrale de Lyon, CNRS, Université de Lyon, Ecully, France; Institut des Géosciences de l'Environnement, Université Grenoble Alpes, CNRS, IRD, INRAE, Grenoble INP, Grenoble, France
| | - Muriel Joly
- Université Clermont Auvergne, CNRS, Institut de Chimie de Clermont-Ferrand, Clermont-Ferrand, France
| | - Catherine Larose
- Laboratoire Ampère, École Centrale de Lyon, CNRS, Université de Lyon, Ecully, France
| | - Aurélien Dommergue
- Institut des Géosciences de l'Environnement, Université Grenoble Alpes, CNRS, IRD, INRAE, Grenoble INP, Grenoble, France
| | - Nathalie Turgeon
- Département de biochimie, de microbiologie et de bio-informatique, Faculté́ des sciences et de génie, Université́ Laval, Québec, Canada; Centre de recherche de l'institut de cardiologie et de pneumologie de Québec, Québec, Canada
| | - Marc Veillette
- Département de biochimie, de microbiologie et de bio-informatique, Faculté́ des sciences et de génie, Université́ Laval, Québec, Canada; Centre de recherche de l'institut de cardiologie et de pneumologie de Québec, Québec, Canada
| | - Karine Sellegri
- Université Clermont Auvergne, CNRS, Laboratoire de Météorologie physique, UMR 6016, Clermont-Ferrand, France
| | - Jean-Luc Baray
- Université Clermont Auvergne, CNRS, Observatoire de physique du Globe de Clermont-Ferrand, UAR 833, Clermont-Ferrand, France; Université Clermont Auvergne, CNRS, Laboratoire de Météorologie physique, UMR 6016, Clermont-Ferrand, France
| | - Pierre Amato
- Université Clermont Auvergne, CNRS, Institut de Chimie de Clermont-Ferrand, Clermont-Ferrand, France
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20
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Zhang M, Xu Y, Wang J, Hu J, Qi S, Jiang Z, Yang S. Impact of biochar on the antibiotic resistome and associated microbial functions in rhizosphere and bulk soil in water-saving and flooding irrigated paddy fields. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 342:123026. [PMID: 38012968 DOI: 10.1016/j.envpol.2023.123026] [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: 09/08/2023] [Revised: 11/06/2023] [Accepted: 11/21/2023] [Indexed: 11/29/2023]
Abstract
The addition of biochar in paddies under the condition of water-saving irrigation can simultaneously achieve soil improvement and water conservation, but little is known about the role of these two regulations in mediating the fate of antibiotic resistome in paddy soils. Here, metagenomic analysis was conducted to investigate the effects and intrinsic mechanisms of biochar application and irrigation patterns on propagation of antibiotic resistance genes (ARGs) in paddy soils. The addition of biochar in paddy soil resulted in a reduction of approximately 1.32%-8.01% in the total absolute abundance of ARGs and 0.60%-22.09% in the numbers of ARG subtype. Compared with flooding irrigation, the numbers of detected ARG subtype were reduced by 1.60%-22.90%, but the total absolute abundance of ARGs increased by 0.06%-5.79% in water-saving irrigation paddy soils. Moreover, the combined treatments of flooding irrigation and biochar could significantly reduce the abundance of ARGs in paddy soils. The incremental antibiotic resistance in soil induced by water-saving irrigation was likewise mitigated by the addition of biochar. Correlation analyses indicated that, the differences in soil physicochemical properties under biochar addition or irrigation treatments contributed to the corresponding changes in the abundance of ARGs. Moreover, the variations of microbial community diversity, multidrug efflux abundance and transport system-related genes in paddy soil were also important for mediating the corresponding differences in the abundance of ARGs under the conditions of biochar addition or irrigation treatments. The findings of this study demonstrated the effectiveness of biochar application in mitigating antibiotic resistance in paddy soils. However, it also highlighted a potential concern relating to the elevated antibiotic resistance associated with water-saving irrigation in paddy fields. Consequently, these results contribute to a deeper comprehension of the environmental risks posed by ARGs in paddy soils.
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Affiliation(s)
- Mairan Zhang
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 210098, China; Jiangsu Province Engineering Research Center for Agricultural Soil-Water Efficient Utilization, Carbon Sequestration and Emission Reduction, Hohai University, Nanjing, 210098, China
| | - Yi Xu
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 210098, China; Jiangsu Province Engineering Research Center for Agricultural Soil-Water Efficient Utilization, Carbon Sequestration and Emission Reduction, Hohai University, Nanjing, 210098, China
| | - Jie Wang
- Development Center for Science and Technology of Rural Water Resources of Jiangsu Province, Nanjing, 210029, China
| | - Jiazhen Hu
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 210098, China; Jiangsu Province Engineering Research Center for Agricultural Soil-Water Efficient Utilization, Carbon Sequestration and Emission Reduction, Hohai University, Nanjing, 210098, China
| | - Suting Qi
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 210098, China; Jiangsu Province Engineering Research Center for Agricultural Soil-Water Efficient Utilization, Carbon Sequestration and Emission Reduction, Hohai University, Nanjing, 210098, China
| | - Zewei Jiang
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 210098, China; Jiangsu Province Engineering Research Center for Agricultural Soil-Water Efficient Utilization, Carbon Sequestration and Emission Reduction, Hohai University, Nanjing, 210098, China
| | - Shihong Yang
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 210098, China; Jiangsu Province Engineering Research Center for Agricultural Soil-Water Efficient Utilization, Carbon Sequestration and Emission Reduction, Hohai University, Nanjing, 210098, China.
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21
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Zhou SYD, Yang K, Neilson R, Li H, Li HZ, Zhou YY, Liu J, Su JQ, Huang FY. Long-term seawall barriers lead to the formation of an urban coastal lagoon with increased antibiotic resistome. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119721. [PMID: 38043315 DOI: 10.1016/j.jenvman.2023.119721] [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: 08/03/2023] [Revised: 11/15/2023] [Accepted: 11/25/2023] [Indexed: 12/05/2023]
Abstract
Urbanization has increased the spread of antibiotic resistance genes (ARGs) impacting urban aquatic ecosystems and threatening human health. However, an overview of the antibiotic resistome in artificial coastal lagoons formed by coastal seawall construction is unclear. This study investigated the resistome of sediment in a coastal lagoon, established for over 60 years and found that the composition of the resistome in the lagoon sediments associated with the seawall significantly differed from that of marine sediment external to the seawall. Moreover, the diversity, number, relative abundance, and absolute abundance of the antibiotic resistome in the lagoon sediments were significantly higher compared to marine sediment. Network analyses revealed that more co-occurrences were found in lagoon sediment between bacterial communities, ARGs and mobile genetic elements (MGEs) than in marine sediments, suggesting that bacteria in lagoon sediments may be associated with multiple antibiotic resistances. Random forest and structural equation models showed that an increase in the absolute abundance of MGEs had a concomitant effect on the absolute abundance and diversity of ARGs, whereas increasing salinity decreased the absolute abundance of ARGs. This study provides a basis to assess the risk of resistome diffusion and persistence in an artificial coastal lagoon.
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Affiliation(s)
- Shu-Yi-Dan Zhou
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, 723Xingke Road, Tianhe District, Guangzhou, 510650, China; Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, 723Xingke Road, Tianhe District, Guangzhou, 510650, China; Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Kai Yang
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Roy Neilson
- Ecological Sciences, The James Hutton Institute, Dundee, DD2 5DA, Scotland, UK
| | - Hu Li
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Hong-Zhe Li
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Yan-Yan Zhou
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Juxiu Liu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, 723Xingke Road, Tianhe District, Guangzhou, 510650, China; Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, 723Xingke Road, Tianhe District, Guangzhou, 510650, China
| | - Jian-Qiang Su
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China
| | - Fu-Yi Huang
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China.
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22
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Vargas-Villalobos S, Hernández F, Fabregat-Safont D, Salas-González D, Quesada-Alvarado F, Botero-Coy AM, Esperón F, Martín-Maldonado B, Monrós-Gonzalez J, Ruepert C, Estrada-König S, Rivera-Castillo J, Chaverri-Fonseca F, Blanco-Peña K. A case study on pharmaceutical residues and antimicrobial resistance genes in Costa Rican rivers: A possible route of contamination for feline and other species. ENVIRONMENTAL RESEARCH 2024; 242:117665. [PMID: 37993051 DOI: 10.1016/j.envres.2023.117665] [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: 09/12/2023] [Revised: 11/08/2023] [Accepted: 11/12/2023] [Indexed: 11/24/2023]
Abstract
In this investigation, the presence of antibiotics and pharmaceuticals in Costa Rican surface waters, specifically in regions near feline habitats, was examined. The study revealed that 47% of the water samples contained detectable traces of at least one antibiotic. Ciprofloxacin and norfloxacin were the most frequently detected compounds, each with a detection rate of 27%. Other antibiotics, such as erythromycin, roxithromycin, and trimethoprim, were also found but at lower frequencies, around 14%. Notably, all antibiotic concentrations remained below 10 ng/L, with ciprofloxacin, norfloxacin, and erythromycin showing the highest concentrations. Furthermore, the investigation revealed the presence of non-antibiotic pharmaceutical residues in the water samples, typically at concentrations below 64 ng/L. Tramadol was the most frequently detected compound, present in 18% of the samples. The highest concentrations were observed for acetaminophen and tramadol, measuring 64 and 10 ng/L, respectively. Comparing these findings with studies conducted in treated wastewater and urban rivers, it became evident that the concentrations of antibiotics and pharmaceuticals were notably lower in this study. While previous research reported higher values, the limited number of studies conducted in protected areas raises concerns about the potential environmental impact on biodiversity. In summary, these results emphasize the importance of monitoring pharmaceutical residues and antimicrobial resistance genes ARGs in vulnerable ecosystems, especially those in close proximity to feline habitats in Costa Rica. Additionally, the study delved into the detection of (ARGs). All tested water samples were positive for at least one ARG, with the blaTEM gene being the most prevalent at 82%, followed by tetS at 64% and qnrB at 23%. Moreover, this research shed light on the complexity of evaluating ARGs in environmental samples, as their presence does not necessarily indicate their expression. It also highlighted the potential for co-selection and co-regulation of ARGs, showcasing the intricate behaviors of these genes in aquatic environments.
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Affiliation(s)
- Seiling Vargas-Villalobos
- Universidad Nacional, Instituto Regional de Estudios en Sustancias Tóxicas, (IRET), 86-3000, Heredia, Costa Rica; Doctoral Program in Pollution, Toxicology and Environmental Health Universitat de València, España Av. Blasco Ibáñez, 13.46010, Valencia, Spain.
| | - Félix Hernández
- Environmental and Public Health Analytical Chemistry, Research Institute for Pesticides and Water, University Jaume I, Avda. Sos Baynat S/n, 12071, Castelló, Spain
| | - David Fabregat-Safont
- Environmental and Public Health Analytical Chemistry, Research Institute for Pesticides and Water, University Jaume I, Avda. Sos Baynat S/n, 12071, Castelló, Spain; Applied Metabolomics Research Laboratory, IMIM-Hospital Del Mar Medical Research Institute, 88 Doctor Aiguader, 08003, Barcelona, Spain
| | - Denis Salas-González
- Universidad Nacional, Instituto Regional de Estudios en Sustancias Tóxicas, (IRET), 86-3000, Heredia, Costa Rica
| | - Francisco Quesada-Alvarado
- Universidad Nacional, Instituto Regional de Estudios en Sustancias Tóxicas, (IRET), 86-3000, Heredia, Costa Rica
| | - Ana Maria Botero-Coy
- Environmental and Public Health Analytical Chemistry, Research Institute for Pesticides and Water, University Jaume I, Avda. Sos Baynat S/n, 12071, Castelló, Spain
| | - Fernando Esperón
- Veterinary Department, School of Biomedical and Health Sciences, Universidad Europea de Madrid, Spain
| | - Bárbara Martín-Maldonado
- Veterinary Department, School of Biomedical and Health Sciences, Universidad Europea de Madrid, Spain
| | - Juan Monrós-Gonzalez
- Institut "Cavanilles" de Biodiversitat I Biologia Evolutiva Universitat de València, Spain
| | - Clemens Ruepert
- Universidad Nacional, Instituto Regional de Estudios en Sustancias Tóxicas, (IRET), 86-3000, Heredia, Costa Rica
| | - Sandra Estrada-König
- Universidad Nacional. Escuela de Medicina Veterinaria, 86-3000, Heredia, Costa Rica
| | | | - Fabio Chaverri-Fonseca
- Universidad Nacional, Instituto Regional de Estudios en Sustancias Tóxicas, (IRET), 86-3000, Heredia, Costa Rica
| | - Kinndle Blanco-Peña
- Universidad Nacional, Instituto Regional de Estudios en Sustancias Tóxicas, (IRET), 86-3000, Heredia, Costa Rica
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23
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Luo F, Zhao Y, Xu JY, Wang HT, Zhu D. Network complexity of bacterial community driving antibiotic resistome in the microbiome of earthworm guts under different land use patterns. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132732. [PMID: 37813029 DOI: 10.1016/j.jhazmat.2023.132732] [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: 08/22/2023] [Accepted: 10/05/2023] [Indexed: 10/11/2023]
Abstract
Recently, the study of antibiotic resistance in the soil animal microbiome has attracted extensive attention; however, the patterns of antibiotic resistance genes (ARGs) in soil and soil animals related to different land use types remain poorly studied. In the present study, soil and earthworms were collected from four different land-use types (farmland, hospital, park land, and mountain park), and 162 ARGs in the microbiomes of the soil and earthworms were quantified using high-throughput quantitative PCR. Our study showed that the abundance and number of ARGs were higher in soil samples than in earthworm guts, but earthworms as the living organisms created relatively isolated ambient surroundings, which allowed for a more heterogeneous ARGs profile. Meanwhile, land use significantly influenced the abundance, number and co-occurrence pattern of ARGs in the soil and earthworm samples. Furthermore, abiotic and biotic factors had significant effects on the ARGs profile, among which pH had a negative effect on the ARGs profiles of both soil and earthworm microbiomes, and bacterial network complexity had a positive effect on the earthworm ARGs profile. Our study provides new insights into the distribution and dispersal of ARGs in the soil animal gut microbiome under different land use patterns.
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Affiliation(s)
- Fang Luo
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture and Rural Affairs, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yang Zhao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture and Rural Affairs, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jia-Yang Xu
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong-Tao Wang
- College of Geography and Environmental Science, Henan University, Kaifeng 475004, China
| | - Dong Zhu
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China.
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24
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Wang D, Shang J, Lin H, Liang J, Wang C, Sun Y, Bai Y, Qu J. Identifying ARG-carrying bacteriophages in a lake replenished by reclaimed water using deep learning techniques. WATER RESEARCH 2024; 248:120859. [PMID: 37976954 DOI: 10.1016/j.watres.2023.120859] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/16/2023] [Accepted: 11/10/2023] [Indexed: 11/19/2023]
Abstract
As important mobile genetic elements, phages support the spread of antibiotic resistance genes (ARGs). Previous analyses of metaviromes or metagenome-assembled genomes (MAGs) failed to assess the extent of ARGs transferred by phages, particularly in the generation of antibiotic pathogens. Therefore, we have developed a bioinformatic pipeline that utilizes deep learning techniques to identify ARG-carrying phages and predict their hosts, with a special focus on pathogens. Using this method, we discovered that the predominant types of ARGs carried by temperate phages in a typical landscape lake, which is fully replenished by reclaimed water, were related to multidrug resistance and β-lactam antibiotics. MAGs containing virulent factors (VFs) were predicted to serve as hosts for these ARG-carrying phages, which suggests that the phages may have the potential to transfer ARGs. In silico analysis showed a significant positive correlation between temperate phages and host pathogens (R = 0.503, p < 0.001), which was later confirmed by qPCR. Interestingly, these MAGs were found to be more abundant than those containing both ARGs and VFs, especially in December and March. Seasonal variations were observed in the abundance of phages harboring ARGs (from 5.62 % to 21.02 %) and chromosomes harboring ARGs (from 18.01 % to 30.94 %). In contrast, the abundance of plasmids harboring ARGs remained unchanged. In summary, this study leverages deep learning to analyze phage-transferred ARGs and demonstrates an alternative method to track the production of potential antibiotic-resistant pathogens by metagenomics that can be extended to microbiological risk assessment.
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Affiliation(s)
- Donglin Wang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jiayu Shang
- Department of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Hui Lin
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jinsong Liang
- School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Chenchen Wang
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin 300384, China
| | - Yanni Sun
- Department of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, China.
| | - Yaohui Bai
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Jiuhui Qu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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25
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Yu Q, Han Q, Li T, Kou Y, Zhang X, Wang Y, Li G, Zhou H, Qu J, Li H. Metagenomics reveals the self-recovery and risk of antibiotic resistomes during carcass decomposition of wild mammals. ENVIRONMENTAL RESEARCH 2023; 238:117222. [PMID: 37778601 DOI: 10.1016/j.envres.2023.117222] [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: 08/08/2023] [Revised: 09/06/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023]
Abstract
Animal carcass decomposition may bring serious harm to the environment, including pathogenic viruses, toxic gases and metabolites, and antibiotic resistance genes (ARGs). However, how wild mammal corpses decomposition influence and change ARGs in the environment has less explored. Through metagenomics, 16S rRNA gene sequencing, and physicochemical analysis, this study explored the succession patterns, influencing factors, and assembly process of ARGs and mobile genetic elements (MGEs) in gravesoil during long-term corpse decomposition of wild mammals. Our results indicate that the ARG and MGE communities related to wildlife corpses exhibited a pattern of differentiation first and then convergence. Different from the farmed animals, the decomposition of wild animals first reduced the diversity of ARGs and MGEs, and then recovered to a level similar to that of the control group (untreated soil). ARGs and MGEs of the gravesoil are mainly affected by deterministic processes in different stages. MGEs and bacterial community are the two most important factors affecting ARGs in gravesoil. It is worth noting that the decomposition of wild animal carcasses enriched different high-risk ARGs at different stages (bacA, mecA and floR), which have co-occurrence patterns with opportunistic pathogens (Comamonas and Acinetobacter), thereby posing a great threat to public health. These results are of great significance for wildlife corpse management and environmental and ecological safety.
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Affiliation(s)
- Qiaoling Yu
- State Key Laboratory of Grassland Agro-ecosystems, Center for Grassland Microbiome, College of Pastoral Agriculture Science and Technology, Lanzhou University, Gansu, 730000, China
| | - Qian Han
- School of Public Health, Lanzhou University, Lanzhou, 730000, China
| | - Tongtong Li
- Department of Applied Biology, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Yongping Kou
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Xiao Zhang
- Key Laboratory of National Forestry and Grassland Administration on Silviculture in Loess Plateau, College of Forestry, Northwest A&F University, Yangling, 712100, China
| | - Yansu Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Guoliang Li
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Huakun Zhou
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Qinghai Provincial Key Laboratory of Restoration Ecology for Cold Region, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, 810008, China
| | - Jiapeng Qu
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Qinghai Provincial Key Laboratory of Restoration Ecology for Cold Region, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, 810008, China.
| | - Huan Li
- State Key Laboratory of Grassland Agro-ecosystems, Center for Grassland Microbiome, College of Pastoral Agriculture Science and Technology, Lanzhou University, Gansu, 730000, China; Key Laboratory of Adaptation and Evolution of Plateau Biota, Qinghai Provincial Key Laboratory of Restoration Ecology for Cold Region, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, 810008, China; School of Public Health, Lanzhou University, Lanzhou, 730000, China.
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Sun T, Mao X, Han K, Wang X, Cheng Q, Liu X, Zhou J, Ma Q, Ni Z, Wu L. Nitrogen addition increased soil particulate organic carbon via plant carbon input whereas reduced mineral-associated organic carbon through attenuating mineral protection in agroecosystem. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 899:165705. [PMID: 37487902 DOI: 10.1016/j.scitotenv.2023.165705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/27/2023] [Accepted: 07/20/2023] [Indexed: 07/26/2023]
Abstract
Nitrogen (N) addition can have substantial impacts on both aboveground and belowground processes such as plant productivity, microbial activity, and soil properties, which in turn alters the fate of soil organic carbon (SOC). However, how N addition affects various SOC fractions such as particulate organic carbon (POC) and mineral-associated organic carbon (MAOC), particularly in agroecosystem, and the underlying mechanisms remain unclear. In this study, plant biomass (grain yield, straw biomass, and root biomass), soil chemical properties (pH, N availability, exchangeable cations and amorphous Al/Fe - (hydr) oxides) and microbial characteristics (biomass and functional genes) in response to a N addition experiment (0, 150, 225, 300, and 375 kg ha-1) in paddy soil were investigated to explore the predominant controls of POC and MAOC. Our results showed that POC significantly increased, while MAOC decreased under N addition (p < 0.05). Correlation analysis and PLSPM results suggested that increased C input, as indicated by root biomass, predominated the increase in POC. The declined MAOC was not mainly dominated by microbial control, but was strongly associated with the attenuated mineral protection (especially Ca2+) induced by soil acidification under N addition. Collectively, our results emphasized the importance of combining C input and soil chemistry in predicting soil C dynamics and thereby determining soil organic C storage in response to N addition in rice agroecosystem.
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Affiliation(s)
- Tao Sun
- Ministry of Education Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiali Mao
- Ministry of Education Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Kefeng Han
- Ministry of Education Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiangjie Wang
- Ministry of Education Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qi Cheng
- Ministry of Education Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiu Liu
- Ministry of Education Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jingjie Zhou
- Ministry of Education Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qingxu Ma
- Ministry of Education Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhihua Ni
- Cultivated Land Quality and Fertilizer Management Station of Zhejiang Province, Hangzhou 310020, China.
| | - Lianghuan Wu
- Ministry of Education Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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27
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Zadjelovic V, Wright RJ, Borsetto C, Quartey J, Cairns TN, Langille MGI, Wellington EMH, Christie-Oleza JA. Microbial hitchhikers harbouring antimicrobial-resistance genes in the riverine plastisphere. MICROBIOME 2023; 11:225. [PMID: 37908022 PMCID: PMC10619285 DOI: 10.1186/s40168-023-01662-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 09/04/2023] [Indexed: 11/02/2023]
Abstract
BACKGROUND The widespread nature of plastic pollution has given rise to wide scientific and social concern regarding the capacity of these materials to serve as vectors for pathogenic bacteria and reservoirs for Antimicrobial Resistance Genes (ARG). In- and ex-situ incubations were used to characterise the riverine plastisphere taxonomically and functionally in order to determine whether antibiotics within the water influenced the ARG profiles in these microbiomes and how these compared to those on natural surfaces such as wood and their planktonic counterparts. RESULTS We show that plastics support a taxonomically distinct microbiome containing potential pathogens and ARGs. While the plastisphere was similar to those biofilms that grew on wood, they were distinct from the surrounding water microbiome. Hence, whilst potential opportunistic pathogens (i.e. Pseudomonas aeruginosa, Acinetobacter and Aeromonas) and ARG subtypes (i.e. those that confer resistance to macrolides/lincosamides, rifamycin, sulfonamides, disinfecting agents and glycopeptides) were predominant in all surface-related microbiomes, especially on weathered plastics, a completely different set of potential pathogens (i.e. Escherichia, Salmonella, Klebsiella and Streptococcus) and ARGs (i.e. aminoglycosides, tetracycline, aminocoumarin, fluoroquinolones, nitroimidazole, oxazolidinone and fosfomycin) dominated in the planktonic compartment. Our genome-centric analysis allowed the assembly of 215 Metagenome Assembled Genomes (MAGs), linking ARGs and other virulence-related genes to their host. Interestingly, a MAG belonging to Escherichia -that clearly predominated in water- harboured more ARGs and virulence factors than any other MAG, emphasising the potential virulent nature of these pathogenic-related groups. Finally, ex-situ incubations using environmentally-relevant concentrations of antibiotics increased the prevalence of their corresponding ARGs, but different riverine compartments -including plastispheres- were affected differently by each antibiotic. CONCLUSIONS Our results provide insights into the capacity of the riverine plastisphere to harbour a distinct set of potentially pathogenic bacteria and function as a reservoir of ARGs. The environmental impact that plastics pose if they act as a reservoir for either pathogenic bacteria or ARGs is aggravated by the persistence of plastics in the environment due to their recalcitrance and buoyancy. Nevertheless, the high similarities with microbiomes growing on natural co-occurring materials and even more worrisome microbiome observed in the surrounding water highlights the urgent need to integrate the analysis of all environmental compartments when assessing risks and exposure to pathogens and ARGs in anthropogenically-impacted ecosystems. Video Abstract.
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Affiliation(s)
- Vinko Zadjelovic
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK.
- Present address: Centro de Bioinnovación de Antofagasta (CBIA), Facultad de Ciencias del Mar y Recursos Biológicos, Universidad de Antofagasta, 1271155, Antofagasta, Chile.
| | - Robyn J Wright
- Department of Pharmacology, Faculty of Medicine, Dalhousie University, Halifax, Canada
| | - Chiara Borsetto
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | - Jeannelle Quartey
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | - Tyler N Cairns
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | - Morgan G I Langille
- Department of Pharmacology, Faculty of Medicine, Dalhousie University, Halifax, Canada
| | | | - Joseph A Christie-Oleza
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK.
- Department of Biology, University of the Balearic Islands, 07122, Palma, Spain.
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Zhang H, Quan H, Song S, Sun L, Lu H. Comprehensive assessment of toxicity and environmental risk associated with sulfamethoxazole biodegradation in sulfur-mediated biological wastewater treatment. WATER RESEARCH 2023; 246:120753. [PMID: 37871376 DOI: 10.1016/j.watres.2023.120753] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/01/2023] [Accepted: 10/17/2023] [Indexed: 10/25/2023]
Abstract
Incomplete mineralization of sulfamethoxazole (SMX) in wastewater treatment systems poses a threat to ecological health. The toxicity and environmental risk associated with SMX biodegradation in the sulfur-mediated biological process were examined for the first time through a long-term (180 days) bioreactor study and a series of bioassays. The results indicated that the sulfur-mediated biological system was highly resistant and tolerant to SMX toxicity, as evidenced by the enrichment of sulfate-reducing bacteria (SRB), the improved microbial metabolic activity, and the excellent performance on pollutants removal under long-term SMX exposure. SMX can be effectively biodegraded by the cleavage and rearrangement of the isoxazole ring, hydrogenation and hydroxylation reactions in sulfur-mediated biological wastewater system. These biodegradation pathways effectively reduced the acute toxicity, antibacterial activity, and ecotoxicities of SMX and its biotransformation products (TPs) in the effluent of the sulfur-mediated biological system. The TPs produced via hydrogenation (TP1), hydroxylation, and isoxazole ring cleavage (TP3, TP4, TP5, TP8, and TP9) exhibited lower toxicity than SMX. Under SMX stress, although the abundance of sulfonamide resistance genes increased, the total abundance of ARGs decreased due to the extrusion of some intracellular SMX by the efflux pump genes and the inactivation of some SMX through the biodegradation process. Efflux pump and inactivation, as the main resistance mechanisms of antibiotics in the sulfur-mediated biological system, play a crucial role in microbial self-defense. The findings of this study demonstrate the great potential of the sulfur-mediated biological system in SMX removal, detoxication, and ARGs environmental risk reduction.
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Affiliation(s)
- Huiqun Zhang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-Sen University), Guangzhou 510275, China; Guangdong Water Co., Ltd., Shenzhen 518021, China
| | - Haoting Quan
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-Sen University), Guangzhou 510275, China
| | - Shiliu Song
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-Sen University), Guangzhou 510275, China
| | - Lianpeng Sun
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-Sen University), Guangzhou 510275, China
| | - Hui Lu
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-Sen University), Guangzhou 510275, China.
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29
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Zhou Z, Zhong D, Zhang Z, Ma W, Chen J, Zhuang M, Li F, Zhang J, Zhu Y, Su P. Biofilm on the pipeline wall is an important transmission route of resistome in drinking water distribution system. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 335:122311. [PMID: 37543075 DOI: 10.1016/j.envpol.2023.122311] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/07/2023]
Abstract
Due to the intensive use of antibiotics, the drinking water distribution system (DWDS) has become one of the hotspots of antibiotic resistance. However, little is known about the role of biofilm in the aspect of spreading resistance in DWDS. In present study, four lab-scale biological annular reactors (BAR) were constructed to investigate the transmission of ARGs exposed to a certain amount of antibiotic (sulfamethoxazole) synergistic disinfectants. It was emphasized that pipe wall biofilm was an important way for ARGs to propagate in the pipeline, and the results were quantified by constructing an operational taxonomic unit (OTU) network map. The network analysis results showed the biofilm contribution to waterborne bacteria was finally estimated to be 51.45% and 34.27% in polyethylen (PE) pipe and ductile iron (DI) pipe, respectively. The proportion of vertical gene transfer (VGT) in biofilm was higher than that in water, and the occurrence of this situation had little relationship with the selection of pipe type. Overall, this study revealed how biofilm promoted the transmission of resistome in bulk water, which can provide insights into assessing biofilm-associated risks and optimizing pipe material selection for biofilm control in DWDS.
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Affiliation(s)
- Ziyi Zhou
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Dan Zhong
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
| | - Zhijun Zhang
- Quangang Water Conservancy Construction and Development Co., LTD, Quanzhou, 362000, China
| | - Wencheng Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Jiongleng Chen
- Quangang Water Conservancy Construction and Development Co., LTD, Quanzhou, 362000, China
| | - Meng Zhuang
- Quangang Water Conservancy Construction and Development Co., LTD, Quanzhou, 362000, China
| | - Feiyu Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Jingna Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Yisong Zhu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Peng Su
- Changjiang Institute of Survey, Planning, Design and Research, Wuhan, 430010, China
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30
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Xu L, Canales M, Zhou Q, Karu K, Zhou X, Su J, Campos LC, Ciric L. Antibiotic resistance genes and the association with bacterial community in biofilms occurring during the drinking water granular activated carbon (GAC) sandwich biofiltration. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132511. [PMID: 37708648 DOI: 10.1016/j.jhazmat.2023.132511] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/16/2023]
Abstract
The granular activated carbon (GAC) sandwich modification to slow sand filtration could be considered as a promising technology for improved drinking water quality. Biofilms developed on sand and GAC surfaces are expected to show a functional diversity during the biofiltration. Bench-scale GAC sandwich biofilters were set-up and run continuously with and without antibiotic exposure. Surface sand (the schmutzdecke) and GAC biofilms were sampled and subject to high-throughput qPCR for antibiotic resistance gene (ARG) analysis and 16 S rRNA amplicon sequencing. Similar diversity of ARG profile was found in both types of biofilms, suggesting that all ARG categories decreased in richness along the filter bed. In general, surface sand biofilm remained the most active layer with regards to the richness and abundance of ARGs, where GAC biofilms showed slightly lower ARG risks. Network analysis suggested that 10 taxonomic genera were implicated as possible ARG hosts, among which Nitrospira, Methyloversatilis and Methylotenera showed the highest correlation. Overall, this study was the first attempt to consider the whole structure of the GAC sandwich biofilter and results from this study could help to further understand the persistence of ARGs and their association with the microbial community in drinking water biofiltration system.
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Affiliation(s)
- Like Xu
- Department of Civil, Environmental & Geomatic Engineering, University College London, London WC1E 6BT, UK
| | - Melisa Canales
- Department of Civil, Environmental & Geomatic Engineering, University College London, London WC1E 6BT, UK
| | - Qizhi Zhou
- Department of Civil, Environmental & Geomatic Engineering, University College London, London WC1E 6BT, UK
| | - Kersti Karu
- Department of Chemistry, University College London, London WC1E 6BT, UK
| | - Xinyuan Zhou
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Jianqiang Su
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Luiza C Campos
- Department of Civil, Environmental & Geomatic Engineering, University College London, London WC1E 6BT, UK
| | - Lena Ciric
- Department of Civil, Environmental & Geomatic Engineering, University College London, London WC1E 6BT, UK.
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31
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Zhao Z, Zhang Y, Liu R, Wang L, Xu H, Meng Q, Gu X, Tang L. Antibiotic resistance genes in constructed wetlands: Driving indicators and risk assessment. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132314. [PMID: 37595473 DOI: 10.1016/j.jhazmat.2023.132314] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/14/2023] [Accepted: 08/14/2023] [Indexed: 08/20/2023]
Abstract
Constructed wetlands (CWs) were responsible for the in-depth purification of wastewater, providing an ideal environment for the transport, acquisition, and dissemination of antibiotic resistance genes (ARGs). A better understanding of influencing factors and risks of ARGs in CWs was deemed indispensable. In this research, the abundance of ARGs and mobile genetic elements (MGEs) was determined to be higher in summer and spring, ranging from 53.7 to 8.51 × 106 and 30.9-6.02 × 106 copies/mL, respectively. Seasonal variation significantly influenced the abundance of ARGs and MGEs, as well as the co-occurrence patterns among ARGs, MGEs and bacteria. However, the environmental gradients, from the influent (CW01) to the effluent (CW10), did not impose significant effects on the abundance of ARGs and MGEs. Furthermore, the ratios of pathogenic bacteria to ARG hosts and ARG risks index decreased by 50.4% and 88.54% along with the environmental gradients, indicating that CWs could act as barriers to the transfer of ARGs. Partial least squares-path modeling (PLSPM) revealed that temperature was the main driving factor of ARGs, followed by MGEs, stable and differential bacteria. This finding effectively and innovatively explored the driving indicators for the variations and risks of ARGs caused by spatial-temporal variations, providing new insights into the evaluation and control of ARGs in CWs.
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Affiliation(s)
- Zhenxiong Zhao
- State Environmental Protection Key Laboratory of Estuarine and Coastal Environment, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, PR China; College of Resources and Environment, Yunnan Agricultural University, Kunming, Yunnan 650201, PR China
| | - Yuxuan Zhang
- State Environmental Protection Key Laboratory of Estuarine and Coastal Environment, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, PR China.
| | - Ruizhi Liu
- State Environmental Protection Key Laboratory of Estuarine and Coastal Environment, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, PR China
| | - Liping Wang
- State Environmental Protection Key Laboratory of Estuarine and Coastal Environment, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, PR China
| | - Huitao Xu
- State Environmental Protection Key Laboratory of Estuarine and Coastal Environment, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, PR China
| | - Qingjia Meng
- State Environmental Protection Key Laboratory of Estuarine and Coastal Environment, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, PR China
| | - Xiu Gu
- State Environmental Protection Key Laboratory of Estuarine and Coastal Environment, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, PR China
| | - Li Tang
- College of Resources and Environment, Yunnan Agricultural University, Kunming, Yunnan 650201, PR China
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32
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Zhao Y, Liu Z, Zhang B, Cai J, Yao X, Zhang M, Deng Y, Hu B. Inter-bacterial mutualism promoted by public goods in a system characterized by deterministic temperature variation. Nat Commun 2023; 14:5394. [PMID: 37669961 PMCID: PMC10480208 DOI: 10.1038/s41467-023-41224-7] [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: 01/30/2023] [Accepted: 08/25/2023] [Indexed: 09/07/2023] Open
Abstract
Mutualism is commonly observed in nature but not often reported for bacterial communities. Although abiotic stress is thought to promote microbial mutualism, there is a paucity of research in this area. Here, we monitor microbial communities in a quasi-natural composting system, where temperature variation (20 °C-70 °C) is the main abiotic stress. Genomic analyses and culturing experiments provide evidence that temperature selects for slow-growing and stress-tolerant strains (i.e., Thermobifida fusca and Saccharomonospora viridis), and mutualistic interactions emerge between them and the remaining strains through the sharing of cobalamin. Comparison of 3000 bacterial pairings reveals that mutualism is common (~39.1%) and competition is rare (~13.9%) in pairs involving T. fusca and S. viridis. Overall, our work provides insights into how high temperature can favour mutualism and reduce competition at both the community and species levels.
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Affiliation(s)
- Yuxiang Zhao
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Zishu Liu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Baofeng Zhang
- Hangzhou Ecological and Environmental Monitoring Center, Hangzhou, China
| | - Jingjie Cai
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Xiangwu Yao
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Meng Zhang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Ye Deng
- CAS Key Laboratory for Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Baolan Hu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China.
- Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, China.
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou, China.
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Wang B, Xu J, Wang Y, Stirling E, Zhao K, Lu C, Tan X, Kong D, Yan Q, He Z, Ruan Y, Ma B. Tackling Soil ARG-Carrying Pathogens with Global-Scale Metagenomics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301980. [PMID: 37424042 PMCID: PMC10502870 DOI: 10.1002/advs.202301980] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/11/2023] [Indexed: 07/11/2023]
Abstract
Antibiotic overuse and the subsequent environmental contamination of residual antibiotics poses a public health crisis via an acceleration in the spread of antibiotic resistance genes (ARGs) through horizontal gene transfer. Although the occurrence, distribution, and driving factors of ARGs in soils have been widely investigated, little is known about the antibiotic resistance of soilborne pathogens at a global scale. To explore this gap, contigs from 1643 globally sourced metagnomes are assembled, yielding 407 ARG-carrying pathogens (APs) with at least one ARG; APs are detected in 1443 samples (sample detection rate of 87.8%). The richness of APs is greater in agricultural soils (with a median of 20) than in non-agricultural ecosystems. Agricultural soils possess a high prevalence of clinical APs affiliated with Escherichia, Enterobacter, Streptococcus, and Enterococcus. The APs detected in agricultural soils tend to coexist with multidrug resistance genes and bacA. A global map of soil AP richness is generated, where anthropogenic and climatic factors explained AP hot spots in East Asia, South Asia, and the eastern United States. The results herein advance this understanding of the global distribution of soil APs and determine regions prioritized to control soilborne APs worldwide.
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Affiliation(s)
- Binhao Wang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and EnvironmentInstitute of Soil and Water Resources and Environmental ScienceCollege of Environmental and Resource SciencesZhejiang UniversityHangzhou310058P. R. China
| | - Jianming Xu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and EnvironmentInstitute of Soil and Water Resources and Environmental ScienceCollege of Environmental and Resource SciencesZhejiang UniversityHangzhou310058P. R. China
| | - Yiling Wang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and EnvironmentInstitute of Soil and Water Resources and Environmental ScienceCollege of Environmental and Resource SciencesZhejiang UniversityHangzhou310058P. R. China
- Hangzhou Global Scientific and Technological Innovation CenterZhejiang UniversityHangzhou310058P. R. China
| | - Erinne Stirling
- Agriculture and FoodCommonwealth Scientific and Industrial Research OrganizationAdelaide5064Australia
- School of Biological SciencesThe University of AdelaideAdelaide5005Australia
| | - Kankan Zhao
- Zhejiang Provincial Key Laboratory of Agricultural Resources and EnvironmentInstitute of Soil and Water Resources and Environmental ScienceCollege of Environmental and Resource SciencesZhejiang UniversityHangzhou310058P. R. China
- Hangzhou Global Scientific and Technological Innovation CenterZhejiang UniversityHangzhou310058P. R. China
| | - Caiyu Lu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and EnvironmentInstitute of Soil and Water Resources and Environmental ScienceCollege of Environmental and Resource SciencesZhejiang UniversityHangzhou310058P. R. China
- Hangzhou Global Scientific and Technological Innovation CenterZhejiang UniversityHangzhou310058P. R. China
| | - Xiangfeng Tan
- Institute of Digital AgricultureZhejiang Academy of Agricultural SciencesHangzhou310021P. R. China
- Xianghu LaboratoryHangzhouZhejiang311200P. R. China
| | - Dedong Kong
- Institute of Digital AgricultureZhejiang Academy of Agricultural SciencesHangzhou310021P. R. China
- Xianghu LaboratoryHangzhouZhejiang311200P. R. China
| | - Qingyun Yan
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)Zhuhai519080P. R. China
| | - Zhili He
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)Zhuhai519080P. R. China
| | - Yunjie Ruan
- Institute of Agricultural Bio‐Environmental EngineeringCollege of Bio‐SystemsEngineering and Food ScienceZhejiang UniversityHangzhou310058P. R. China
- The Rural Development AcademyZhejiang UniversityHangzhou310058P. R. China
| | - Bin Ma
- Zhejiang Provincial Key Laboratory of Agricultural Resources and EnvironmentInstitute of Soil and Water Resources and Environmental ScienceCollege of Environmental and Resource SciencesZhejiang UniversityHangzhou310058P. R. China
- Hangzhou Global Scientific and Technological Innovation CenterZhejiang UniversityHangzhou310058P. R. China
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34
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Wei G, Gao H, Li S, Liu M, Li R, Zhang Y, Shu Q, Wang W, Zhi L, Zeng Y, Na G. The occurrence and abundance of antibiotic resistance genes in rivers of tropical islands: a case of Hainan Island, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:88936-88948. [PMID: 37450180 DOI: 10.1007/s11356-023-28522-9] [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: 03/13/2023] [Accepted: 06/27/2023] [Indexed: 07/18/2023]
Abstract
In this study, the occurrence and distribution of 49 antibiotic resistance genes (ARGs) and two integrase genes (intl1, intl2) in three major rivers of Hainan Island, China, were investigated in July 2021, and to explore the spatial distribution of the target genes in the three rivers with the potential influencing factors such as regional characteristics and environmental factors. The results showed that a total of 46 ARGs and two integrase genes were detected in water and sediment, and the absolute abundance of ARGs ranged from 1.16 × 103 to 2.97 × 107 copies/L and 3.34 × 103-1.55 × 107 copies/g. ARGs of macrolides, aminoglycosides, and sulfonamides were this study's main types of ARGs. The aadA2, tetE, ermF, tetX, aac(6')-Ib, tetW, and qnrS genes are predominant ARGs in the water and sediment of the three rivers. The relative abundance of ARGs shows higher abundance in the midstream and downstream and lower abundance in the upstream and estuarine. After conducting a correlation analysis, it was found that there was a significant positive correlation between the ARGs detected in the water of the three main rivers. However, in sediment, tetC was negatively correlated with tetQ, macB was negatively correlated with ermF and ereA (p < 0.05), while the remaining ARGs showed positive correlations. Specifically, there was no significant positive correlation between tetQ and tetC, macB and ereA, and ermF in the sediments. Among the nine environmental factors studied, pH was found to be the main factor associated with the occurrence of ARGs in the aquatic environment, but it was also significantly associated with only nine ARGs. Among the detected heavy metals, only Cd and Zn showed significant correlations with the two ARGs in the water bodies of the three main rivers. It indicated that the pollution of ARGs in the three major rivers was in the initial stage, the detection abundance was low, the influence of environmental factors was small, and the interaction between ARGs seemed to be the main driving force. This study provides a scientific basis for further understanding the occurrence of ARGs and their influencing factors in a tropical island environment, and lays a foundation for subsequent management.
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Affiliation(s)
- Guangke Wei
- Yazhou Bay Innovation Institute/Hainan Key Laboratory for Coastal Marine Eco-environment and Carbon Sink/College of Ecology and Environment, Hainan Tropical Ocean University, Sanya, 572022, China
| | - Hui Gao
- National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Shisheng Li
- Yazhou Bay Innovation Institute/Hainan Key Laboratory for Coastal Marine Eco-environment and Carbon Sink/College of Ecology and Environment, Hainan Tropical Ocean University, Sanya, 572022, China
| | - Min Liu
- Yazhou Bay Innovation Institute/Hainan Key Laboratory for Coastal Marine Eco-environment and Carbon Sink/College of Ecology and Environment, Hainan Tropical Ocean University, Sanya, 572022, China
| | - Ruijing Li
- National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Yintian Zhang
- Yazhou Bay Innovation Institute/Hainan Key Laboratory for Coastal Marine Eco-environment and Carbon Sink/College of Ecology and Environment, Hainan Tropical Ocean University, Sanya, 572022, China
| | - Qin Shu
- National Marine Environmental Monitoring Center, Dalian, 116023, China
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Wei Wang
- Yazhou Bay Innovation Institute/Hainan Key Laboratory for Coastal Marine Eco-environment and Carbon Sink/College of Ecology and Environment, Hainan Tropical Ocean University, Sanya, 572022, China
| | - Liwen Zhi
- Yazhou Bay Innovation Institute/Hainan Key Laboratory for Coastal Marine Eco-environment and Carbon Sink/College of Ecology and Environment, Hainan Tropical Ocean University, Sanya, 572022, China
| | - Yingxu Zeng
- Yazhou Bay Innovation Institute/Hainan Key Laboratory for Coastal Marine Eco-environment and Carbon Sink/College of Ecology and Environment, Hainan Tropical Ocean University, Sanya, 572022, China
| | - Guangshui Na
- Yazhou Bay Innovation Institute/Hainan Key Laboratory for Coastal Marine Eco-environment and Carbon Sink/College of Ecology and Environment, Hainan Tropical Ocean University, Sanya, 572022, China.
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Zalewska M, Błażejewska A, Czapko A, Popowska M. Pig manure treatment strategies for mitigating the spread of antibiotic resistance. Sci Rep 2023; 13:11999. [PMID: 37491438 PMCID: PMC10368742 DOI: 10.1038/s41598-023-39204-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 07/21/2023] [Indexed: 07/27/2023] Open
Abstract
Due to the risk of pathogenic antibiotic-resistant bacteria and their antibiotic-resistance genes transfer from livestock feces to the soil and cultivated crops, it is imperative to find effective on-farm manure treatments to minimize that hazardous potential. An introduced worldwide policy of sustainable development, focus on ecological agricultural production, and the circular economy aimed at reducing the use of artificial fertilizers; therefore, such treatment methods should also maximize the fertilization value of animal manure. The two strategies for processing pig manure are proposed in this study-storage and composting. The present study examines the changes in the physicochemical properties of treated manure, in the microbiome, and in the resistome, compared to raw manure. This is the first such comprehensive analysis performed on the same batch of manure. Our results suggest that while none of the processes eliminates the environmental risk, composting results in a faster and more pronounced reduction of mobile genetic elements harboring antibiotic resistance genes, including those responsible for multi-drug resistance. Overall, the composting process can be an efficient strategy for mitigating the spread of antibiotic resistance in the environment and reducing the risk of its transfer to crops and the food chain while providing essential fertilizer ingredients.
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Affiliation(s)
- Magdalena Zalewska
- Department of Bacterial Physiology, Faculty of Biology, Institute of Microbiology, University of Warsaw, Warsaw, Poland
| | - Aleksandra Błażejewska
- Department of Bacterial Physiology, Faculty of Biology, Institute of Microbiology, University of Warsaw, Warsaw, Poland
| | - Agnieszka Czapko
- Department of Bacterial Physiology, Faculty of Biology, Institute of Microbiology, University of Warsaw, Warsaw, Poland
| | - Magdalena Popowska
- Department of Bacterial Physiology, Faculty of Biology, Institute of Microbiology, University of Warsaw, Warsaw, Poland.
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36
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Zhou Z, Ma W, Li F, Zhong D, Zhang W, Liu L, Zhang J, Zhu Y, Su P. Deciphering the distribution and microbial secretors of extracellular polymeric substances associated antibiotic resistance genes in tube wall biofilm. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 881:163218. [PMID: 37004772 DOI: 10.1016/j.scitotenv.2023.163218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/28/2023] [Accepted: 03/28/2023] [Indexed: 06/01/2023]
Abstract
Antibiotics and disinfectants have both been proposed to exert selective pressures on the biofilm as well as affecting the emergence and spread of antibiotic resistance genes (ARGs). However, the transfer mechanism of ARGs in drinking water distribution system (DWDS) under the coupling effect of antibiotics and disinfectants has not been completely understood. In the current study, four lab-scale biological annular reactors (BARs) were constructed to evaluate the effects of sulfamethoxazole (SMX) and NaClO coupling in DWDS and reveal the related mechanisms of ARGs proliferation. TetM was abundant in both the liquid phase and the biofilm, and redundancy analysis showed that the total organic carbon (TOC) and temperature were significantly correlated with ARGs in the water phase. There was a significant correlation between the relative abundance of ARGs in the biofilm phase and extracellular polymeric substances (EPS). Additionally, the proliferation and spread of ARGs in water phase were related to microbial community structure. Partial least-squares path modeling showed that antibiotic concentration may influence ARGs by affecting MGEs. These findings help us to better understand the diffusion process of ARGs in drinking water and provide a theoretical support for technologies to control ARGs at the front of pipeline.
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Affiliation(s)
- Ziyi Zhou
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Wencheng Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Feiyu Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Dan Zhong
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Wenxuan Zhang
- Guangdong Yuehai Water Investment Co., Ltd., Shenzhen 518000, China
| | - Luming Liu
- Harbin Institute of Technology National Engineering Research Center of Urban Water Resources Co., Ltd., Harbin 150090, China
| | - Jingna Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yisong Zhu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Peng Su
- Changjiang Institute of Survey, Planning, Design and Research, Wuhan 430010, China
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37
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Li S, Gao H, Zhang H, Wei G, Shu Q, Li R, Jin S, Na G, Shi Y. The fate of antibiotic resistance genes in the coastal lagoon with multiple functional zones. J Environ Sci (China) 2023; 128:93-106. [PMID: 36801045 DOI: 10.1016/j.jes.2022.07.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 07/13/2022] [Accepted: 07/13/2022] [Indexed: 06/18/2023]
Abstract
Coastal lagoons provide many important services to human society, but their year-round use for aquaculture introduces large amounts of sewage. The contamination of antibiotic resistance genes (ARGs) is therefore of great concern. In this study, 50 ARGs subtypes, two integrase genes (intl1, intl2), and 16S rRNA genes were detected by high-throughput quantitative PCR, and standard curves of all target genes were prepared for quantification. The occurrence and distribution of ARGs in a typical coastal lagoon (XinCun lagoon, China) were comprehensively explored. We detected 44 and 38 subtypes of ARGs in the water and sediment, respectively, and discuss the various factors influencing the fate of ARGs in the coastal lagoon. Macrolides-lincosamides-streptogramins B was the primary ARG type, and macB was the predominant subtype. Antibiotic efflux and antibiotic inactivation were the main ARG resistance mechanisms. The XinCun lagoon was divided into eight functional zones. The ARGs showed a distinct spatial distribution owing to the influence of microbial biomass and anthropogenic activity in different functional zones. Fishing rafts, abandoned fish ponds, the town sewage zone, and mangrove wetlands provided a large quantity of ARGs to the XinCun lagoon. Nutrients and heavy metals also significantly correlated with the fate of the ARGs, especially NO2--N and Cu, which cannot be ignored. It is noteworthy that lagoon-barrier systems coupled with persistent pollutant inputs result in coastal lagoons acting as a "buffer pool" for ARGs, which can then accumulate and threaten the offshore environment.
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Affiliation(s)
- Shisheng Li
- National Marine Environmental Monsitoring Center, Dalian 116023, China; College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
| | - Hui Gao
- National Marine Environmental Monsitoring Center, Dalian 116023, China
| | - Haibo Zhang
- National Marine Environmental Monsitoring Center, Dalian 116023, China
| | - Guangke Wei
- Laboratory for coastal marine eco-environment process and carbon sink of Hainan provincet/Yazhou Bay Innovation Institute, Hainan Tropical Ocean University, Sanya 572022, China
| | - Qin Shu
- National Marine Environmental Monsitoring Center, Dalian 116023, China; College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
| | - Ruijing Li
- National Marine Environmental Monsitoring Center, Dalian 116023, China
| | - Shuaichen Jin
- National Marine Environmental Monsitoring Center, Dalian 116023, China
| | - Guangshui Na
- Laboratory for coastal marine eco-environment process and carbon sink of Hainan provincet/Yazhou Bay Innovation Institute, Hainan Tropical Ocean University, Sanya 572022, China; National Marine Environmental Monsitoring Center, Dalian 116023, China; College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China.
| | - Yali Shi
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China.
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38
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Calderón-Franco D, Corbera-Rubio F, Cuesta-Sanz M, Pieterse B, de Ridder D, van Loosdrecht MCM, van Halem D, Laureni M, Weissbrodt DG. Microbiome, resistome and mobilome of chlorine-free drinking water treatment systems. WATER RESEARCH 2023; 235:119905. [PMID: 36989799 DOI: 10.1016/j.watres.2023.119905] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/16/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
Drinking water treatment plants (DWTPs) are designed to remove physical, chemical, and biological contaminants. However, until recently, the role of DWTPs in minimizing the cycling of antibiotic resistance determinants has got limited attention. In particular, the risk of selecting antibiotic-resistant bacteria (ARB) is largely overlooked in chlorine-free DWTPs where biological processes are applied. Here, we combined high-throughput quantitative PCR and metagenomics to analyze the abundance and dynamics of microbial communities, antibiotic resistance genes (ARGs), and mobile genetic elements (MGEs) across the treatment trains of two chlorine-free DWTPs involving dune-based and reservoir-based systems. The microbial diversity of the water increased after all biological unit operations, namely rapid and slow sand filtration (SSF), and granular activated carbon filtration. Both DWTPs reduced the concentration of ARGs and MGEs in the water by circa 2.5 log gene copies mL-1, despite their relative increase in the disinfection sub-units (SSF in dune-based and UV treatment in reservoir-based DWTPs). The total microbial concentration was also reduced (2.5 log units), and none of the DWTPs enriched for bacteria containing genes linked to antibiotic resistance. Our findings highlight the effectiveness of chlorine-free DWTPs in supplying safe drinking water while reducing the concentration of antibiotic resistance determinants. To the best of our knowledge, this is the first study that monitors the presence and dynamics of antibiotic resistance determinants in chlorine-free DWTPs.
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Affiliation(s)
| | | | | | - Brent Pieterse
- Dunea, Utility for drinking water and nature conservancy, Plein van de Verenigde Naties 11-15, 2719 EG Zoetermeer, the Netherlands
| | - David de Ridder
- Evides Water Company N.V., Schaardijk 150, 3063 NH, Rotterdam, the Netherlands
| | | | | | | | - David G Weissbrodt
- Delft University of Technology, Delft, the Netherlands; Department of Biotechnology and Food Science, Division of Analysis and Control of Microbial Systems, Norwegian University of Science and Technology, Trondheim, Norway
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39
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Guan X, Guo Z, Wang X, Xiang S, Sun T, Zhao R, He J, Liu F. Transfer route and driving forces of antibiotic resistance genes from reclaimed water to groundwater. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 330:121800. [PMID: 37169235 DOI: 10.1016/j.envpol.2023.121800] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 05/13/2023]
Abstract
The infiltration of reclaimed water has created a significant environmental risk due to the spread of antibiotic resistance genes (ARGs) in riparian groundwater. Reclaimed water from wastewater treatment plants (WWTPs) had been identified as a source of both antibiotics and ARGs in groundwater, based on their spatial and temporal distribution. The assembly process of microbial communities in the groundwater of the infiltration zone was more influenced by deterministic processes. Co-occurrence network analysis revealed that Thermotoga, Desulfotomaculum, Methanobacterium, and other such genera were dominant shared genera. These were considered core genera and hosts of ARGs for transport from reclaimed water to groundwater. The most abundant ARG in these shared genera was MacB, enriched in groundwater point G3 and potentially transferred from reclaimed water to groundwater by Acidovorax, Hydrogenophaga, Methylotenera, Dechloromonas, and Nitrospira. During the infiltration process, environmental factors and the tradeoff between energy metabolism and antibiotic defense strategy may have affected ARG transfer. Understanding the transfer route and driving forces of ARGs from reclaimed water to groundwater provided a new perspective for evaluating the spread risk of ARGs in reclaimed water infiltration.
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Affiliation(s)
- Xiangyu Guan
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing, 100083, China.
| | - Zining Guo
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Xusheng Wang
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Shizheng Xiang
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Tongxin Sun
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Ruoyu Zhao
- School of Ocean Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Jiangtao He
- Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Fei Liu
- Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences (Beijing), Beijing, 100083, China
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40
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Li H, Tan L, Zhang C, Wei X, Wang Q, Li Q, Zheng X, Xu Y. Spatial distribution of bacterial resistance towards antibiotics of rural sanitation system in China and its potential link with diseases incidence. J Environ Sci (China) 2023; 127:361-374. [PMID: 36522068 DOI: 10.1016/j.jes.2022.06.010] [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: 05/09/2022] [Revised: 06/05/2022] [Accepted: 06/06/2022] [Indexed: 06/17/2023]
Abstract
Chinese government is vigorously promoting toilet renovation in rural areas to reduce the risk of human feces exposure, which would cause infectious diseases, especially antibiotic resistance genes (ARGs) and pathogens. However, the distribution of ARGs in human feces from different regions of China remained ill-defined. It is not yet known how the survival of ARGs after toilet treatment is associated with the regional infection rates. Here, we investigated the prevalence of ARGs in human feces in rural areas of China and their potential relationship with infectious diseases for the first large-scale. The results showed that there were still high ARGs residues in human feces after rural toilet treatment, especially tetM-01 and ermB with average relative abundance as high as 1.21 × 10-1 (Eastern) and 1.56 × 10-1 (Northern), respectively. At a large regional scale, the significant differences in human feces resistomes were mainly shaped by the toilet types, TN, NH3-N, and the bacterial community. A critical finding was that toilets still cannot effectively decrease the pathogenicity risk in human feces. The significant positive relationship (P<0.05) between infectious diseases and ARGs can infer that ARGs in human feces exposure might be a critical path for enhancing the incidence of diseases, as these ARGs hinder the effectiveness of antibiotics.
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Affiliation(s)
- Houyu Li
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Lu Tan
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Chunxue Zhang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Xiaocheng Wei
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Qiang Wang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Qian Li
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Xiangqun Zheng
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China.
| | - Yan Xu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China.
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41
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Zhang Y, Su JQ, Liao H, Breed MF, Yao H, Shangguan H, Li HZ, Sun X, Zhu YG. Increasing Antimicrobial Resistance and Potential Human Bacterial Pathogens in an Invasive Land Snail Driven by Urbanization. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:7273-7284. [PMID: 37097110 DOI: 10.1021/acs.est.3c01233] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Our understanding of the role urbanization has in augmenting invasive species that carry human bacterial pathogens and antimicrobial resistance (AMR) remains poorly understood. Here, we investigated the gut bacterial communities, antibiotic resistance genes (ARGs) and potential antibiotic-resistant pathogens in giant African snails (Achatina fulica) collected across an urbanization gradient in Xiamen, China (n = 108). There was a lack of correlation between the microbial profiles of giant African snails and the soils of their habitats, and the resistome and human-associated bacteria were significantly higher than those of native snails as well as soils. We observed high diversity (601 ARG subtypes) and abundance (1.5 copies per 16S rRNA gene) of giant African snail gut resistome. Moreover, giant African snails in more urban areas had greater diversity and abundance of high-risk ARGs and potential human bacterial pathogens (e.g., ESKAPE pathogens). We highlight that urbanization significantly impacted the gut microbiomes and resistomes of these invasive snails, indicating that they harbor greater biological contaminants such as ARGs and potential human bacterial pathogens than native snails and soils. This study advances our understanding of the effect of urbanization on human bacterial pathogens and AMR in a problematic invasive snail and should help combat risks associated with invasive species under the One Health framework.
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Affiliation(s)
- Yiyue Zhang
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
| | - Jian-Qiang Su
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hu Liao
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Martin F Breed
- College of Science and Engineering, Flinders University, Bedford Park, South Australia 5042, Australia
| | - Haifeng Yao
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huayuan Shangguan
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong-Zhe Li
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
| | - Xin Sun
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong-Guan Zhu
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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42
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Ge L, Song L, Wang L, Li Y, Sun Y, Wang C, Chen J, Wu G, Pan A, Wu Y, Quan Z, Li P. Evaluating response mechanisms of soil microbiomes and metabolomes to Bt toxin additions. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130904. [PMID: 36860032 DOI: 10.1016/j.jhazmat.2023.130904] [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: 10/30/2022] [Revised: 01/21/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
The accumulation and persistence of Bt toxins in soils from Bt plants and Bt biopesticides may result in environmental hazards such as adverse impacts on soil microorganisms. However, the dynamic relationships among exogenous Bt toxins, soil characteristics, and soil microorganisms are not well understood. Cry1Ab is one of the most commonly used Bt toxins and was added to soils in this study to evaluate subsequent changes in soil physiochemical properties, microbial taxa, microbial functional genes, and metabolites profiles via 16S rRNA gene pyrosequencing, high-throughput qPCR, metagenomic shotgun sequencing, and untargeted metabolomics. Higher additions of Bt toxins led to higher concentrations of soil organic matter (SOM), ammonium (NH+4-N), and nitrite (NO2--N) compared against controls without addition after 100 days of soil incubation. High-throughput qPCR analysis and shotgun metagenomic sequencing analysis revealed that the 500 ng/g Bt toxin addition significantly affected profiles of soil microbial functional genes involved in soil carbon (C), nitrogen (N), and phosphorus (P) cycling after 100 days of incubation. Furthermore, combined metagenomic and metabolomic analyses indicated that the 500 ng/g Bt toxin addition significantly altered low molecular weight metabolite profiles of soils. Importantly, some of these altered metabolites are involved in soil nutrient cycling, and robust associations were identified among differentially abundant metabolites and microorganisms due to Bt toxin addition treatments. Taken together, these results suggest that higher levels of Bt toxin addition can alter soil nutrients, probably by affecting the activities of Bt toxin-degrading microorganisms. These dynamics would then activate other microorganisms involved in nutrient cycling, finally leading to broad changes in metabolite profiles. Notably, the addition of Bt toxins did not cause the accumulation of potential microbial pathogens in soils, nor did it adversely affect the diversity and stability of microbial communities. This study provides new insights into the putative mechanistic associations among Bt toxins, soil characteristics, and microorganisms, providing new understanding into the ecological impacts of Bt toxins on soil ecosystems.
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Affiliation(s)
- Lei Ge
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
| | - Lili Song
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
| | - Luyao Wang
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
| | - Yujie Li
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
| | - Yu Sun
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
| | - Cui Wang
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
| | - Jun Chen
- East China University of Technology, Nanchang 330013, China
| | - Guogan Wu
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
| | - Aihu Pan
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
| | - Yunfei Wu
- The College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Zhexue Quan
- School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Peng Li
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China.
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Mu M, Yang F, Han B, Ding Y, Zhang K. Insights into the panorama of antibiotic resistome in cropland soils amended with vermicompost in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 868:161658. [PMID: 36649763 DOI: 10.1016/j.scitotenv.2023.161658] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/12/2023] [Accepted: 01/12/2023] [Indexed: 06/17/2023]
Abstract
The accumulation and propagation of animal-derived antibiotic resistance genes (ARGs) pose great challenges to agricultural ecosystems. Vermicompost has drawn global attention as a new type of eco-friendly organic fertilizer. However, the effects of vermicompost application on ARGs in soil are still unclear. Here, we conducted a nationwide large-scale survey to explore the impact of vermicompost application on ARGs and the host in cropland fields as well as their regional differences. Vermicompost application was found to alter the pattern of ARGs, reduce the transfer of mobile genetic elements (MGEs), and mitigate the proliferation of high-risk bla-ARGs in soil. Regional differences in vermicompost-derived ARGs were observed in croplands, with less ARG-spreading risk in brown and yellow-brown soils. Total ARG abundance was present at the lowest level (1.24 × 105-3.57 × 107 copies/g) in vermicomposted soil compared with the croplands using animal manure (e.g., swine, chicken, and cow manure). Furthermore, vermicompost application increased the abundance of beneficial bacteria like Ilumatobacter and Gaiella, while reducing the abundance of Acidobacteria and Pseudarthrobacter. Network analysis showed that vermicompost altered ARG host bacteria and reduced the numbers of potential ARG hosts in soil. Microbes played a key role in ARG changes in vermicompost-treated soil. Our study provides valuable insight into the response of soil ARGs and the host to vermicompost in cropland ecosystem, and also provides a novel pathway for controlling the propagation of animal-derived ARGs.
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Affiliation(s)
- Meirui Mu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, PR China
| | - Fengxia Yang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, PR China.
| | - Bingjun Han
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, PR China
| | - Yongzhen Ding
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, PR China
| | - Keqiang Zhang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, PR China; Key Laboratory of Low-carbon Green Agriculture in North China, Ministry of Agriculture and Rural Affairs, PR China.
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Hilal MG, Han B, Yu Q, Feng T, Su W, Li X, Li H. Insight into the dynamics of drinking water resistome in China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 322:121185. [PMID: 36736566 DOI: 10.1016/j.envpol.2023.121185] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/12/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Antibiotic resistance (AR) is a serious environmental hazard of the current age. Antibiotic resistance genes (ARGs) are the fundamental entities that spread AR in the environment. ARGs are likely to be transferred from the non-pathogenic to pathogenic microbes that might ultimately be responsible for the AR in humans and other organisms. Drinking water (DW) is the primary interaction route between ARGs and humans. Being the highest producer and consumer of antibiotics China poses a potential threat to developing superbugs and ARGs dissemination. Herein, we comprehensively seek to review the ARGs from dominant DW sources in China. Furthermore, the origin and influencing factors of the ARGs to the DW in China have been evaluated. Commonly used methods, both classical and modern, are being compiled. In addition, the risk posed and mitigation strategies of DW ARGs in China have been outlined. Overall, we believe this review would contribute to the assessment of ARGs in DW of China and their dissemination to humans and other animals and ultimately help the policymakers and scientists in the field to counteract this problem on an emergency basis.
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Affiliation(s)
- Mian Gul Hilal
- Institute of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, 730000, China; MOE, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, 730000, Gansu, PR China
| | - Binghua Han
- Institute of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, 730000, China
| | - Qiaoling Yu
- Institute of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, 730000, China
| | - Tianshu Feng
- Institute of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, 730000, China
| | - Wanghong Su
- Institute of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, 730000, China
| | - Xiangkai Li
- MOE, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, 730000, Gansu, PR China
| | - Huan Li
- Institute of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, 730000, China.
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Zhang MS, Liang SZ, Zhang WG, Chang YJ, Lei Z, Li W, Zhang GL, Gao Y. Field ponding water exacerbates the dissemination of manure-derived antibiotic resistance genes from paddy soil to surrounding waterbodies. Front Microbiol 2023; 14:1135278. [PMID: 37007487 PMCID: PMC10065064 DOI: 10.3389/fmicb.2023.1135278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 02/28/2023] [Indexed: 03/19/2023] Open
Abstract
Farmlands fertilized with livestock manure-derived amendments have become a hot topic in the dissemination of antibiotic resistance genes (ARGs). Field ponding water connects rice paddies with surrounding water bodies, such as reservoirs, rivers, and lakes. However, there is a knowledge gap in understanding whether and how manure-borne ARGs can be transferred from paddy soil into field ponding water. Our studies suggest that the manure-derived ARGs aadA1, bla1, catA1, cmlA1-01, cmx(A), ermB, mepA and tetPB-01 can easily be transferred into field ponding water from paddy soil. The bacterial phyla Crenarchaeota, Verrucomicrobia, Cyanobacteria, Choloroflexi, Acidobacteria, Firmicutes, Bacteroidetes, and Actinobacteria are potential hosts of ARGs. Opportunistic pathogens detected in both paddy soil and field ponding water showed robust correlations with ARGs. Network co-occurrence analysis showed that mobile genetic elements (MGEs) were strongly correlated with ARGs. Our findings highlight that manure-borne ARGs and antibiotic-resistant bacteria in paddy fields can conveniently disseminate to the surrounding waterbodies through field ponding water, posing a threat to public health. This study provides a new perspective for comprehensively assessing the risk posed by ARGs in paddy ecosystems.
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Affiliation(s)
- Ming-Sha Zhang
- School of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Si-Zhou Liang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing, China
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Wei-Guo Zhang
- School of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
- School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing, China
- *Correspondence: Wei-Guo Zhang, ; Ya-Jun Chang,
| | - Ya-Jun Chang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Memorial Sun Yat-Sen), Nanjing, China
- *Correspondence: Wei-Guo Zhang, ; Ya-Jun Chang,
| | - Zhongfang Lei
- School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan
| | - Wen Li
- School of Life Sciences, Nanjing University, Nanjing, China
| | | | - Yan Gao
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China
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Anju VT, Busi S, Mohan MS, Salim SA, Ar S, Imchen M, Kumavath R, Dyavaiah M, Prasad R. Surveillance and mitigation of soil pollution through metagenomic approaches. Biotechnol Genet Eng Rev 2023:1-34. [PMID: 36881114 DOI: 10.1080/02648725.2023.2186330] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 02/23/2023] [Indexed: 03/08/2023]
Abstract
Soil pollution is one of the serious global threats causing risk to environment and humans. The major cause of accumulation of pollutants in soil are anthropogenic activities and some natural processes. There are several types of soil pollutants which deteriorate the quality of human life and animal health. They are recalcitrant hydrocarbon compounds, metals, antibiotics, persistent organic compounds, pesticides and different kinds of plastics. Due to the detrimental properties of pollutants present in soil on human life and ecosystem such as carcinogenic, genotoxic and mutagenic effects, alternate and effective methods to degrade the pollutants are recommended. Bioremediation is an effective and inexpensive method of biological degradation of pollutants using plants, microorganisms and fungi. With the advent of new detection methods, the identification and degradation of soil pollutants in different ecosystems were made easy. Metagenomic approaches are a boon for the identification of unculturable microorganisms and to explore the vast bioremediation potential for different pollutants. Metagenomics is a power tool to study the microbial load in polluted or contaminated land and its role in bioremediation. In addition, the negative ecosystem and health effect of pathogens, antibiotic and metal resistant genes found in the polluted area can be studied. Also, the identification of novel compounds/genes/proteins involved in the biotechnology and sustainable agriculture practices can be performed with the integration of metagenomics.
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Affiliation(s)
- V T Anju
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Siddhardha Busi
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Mahima S Mohan
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Simi Asma Salim
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Sabna Ar
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Madangchanok Imchen
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Ranjith Kumavath
- Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry, India
- Department of Genomic Science, School of Biological Sciences, Central University of Kerala, Kerala, India
| | - Madhu Dyavaiah
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Ram Prasad
- Department of Botany, School of Life Sciences, Mahatma Gandhi Central University, Bihar, India
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Cao H, Jiao Q, Cheng L, Song L, Xun M, Yang H. Occurrence and prevalence of antibiotic resistance genes in apple orchard after continual application of anaerobic fermentation residues of pig manure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:29229-29242. [PMID: 36409412 DOI: 10.1007/s11356-022-24320-x] [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: 08/09/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
Fermented organic fertilizers made from pig manure contaminated with antibiotics are widely used in fruit tree production. However, their effects on the residual antibiotics and the spread of antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs) in apple orchards are still largely unknown. In the present study, we detected 100 ARGs and 10 MGEs that were transferred from pig manure to an apple orchard. Compared with the original pig manure, significantly greater concentrations of tetracycline, chlortetracycline, oxytetracycline, sulfadiazine, and salfamethyldiazine were observed in anaerobic fermentation residues of the pig manure. The total relative abundance levels of ARGs on the apple pericarp surface, in the orchard soil treated with biogas slurry, and in the orchard soil treated with biogas residue were 122.5, 5.2, 1.4 times higher than those in pristine soil, respectively, which were primarily attributed to the increase in the relative abundance of some ARG subtypes, including blaCTX-M, blaTEM, ermC, sul2, tetO, vgaB, and vgb. Long-term biogas slurry and biogas residue applications to orchard soil enriched bioaccumulation of 10 ARGs and 1 MGEs on the apple pericarp surface with 67.98 the highest factor. This research indicates that the application of anaerobic fermentation residues of pig manure promoted the spread of ARGs in the soil and fruits and increased the level of ARG pollution in the orchard. Results of this study highlight the importance of assessing the ecological safety of organic fertilizers from the perspective of ARGs and indicate that efforts should be devoted to further reducing ARG levels in pig manure before its application to farmland.
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Affiliation(s)
- Hui Cao
- College of Life Sciences, Zaozhuang University, Zaozhuang, 277000, Shandong Province, China
- College of Horticulture Science and Engineering, State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, 271018, Shandong Province, China
| | - Qian Jiao
- College of Life Sciences, Zaozhuang University, Zaozhuang, 277000, Shandong Province, China
| | - Liangmei Cheng
- College of Life Sciences, Zaozhuang University, Zaozhuang, 277000, Shandong Province, China
| | - Linhui Song
- College of Life Sciences, Zaozhuang University, Zaozhuang, 277000, Shandong Province, China
| | - Mi Xun
- College of Horticulture Science and Engineering, State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, 271018, Shandong Province, China
| | - Hongqiang Yang
- College of Horticulture Science and Engineering, State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, 271018, Shandong Province, China.
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Jütte M, Abdighahroudi MS, Waldminghaus T, Lackner S, V Lutze H. Bacterial inactivation processes in water disinfection - mechanistic aspects of primary and secondary oxidants - A critical review. WATER RESEARCH 2023; 231:119626. [PMID: 36709565 DOI: 10.1016/j.watres.2023.119626] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 11/14/2022] [Accepted: 01/15/2023] [Indexed: 06/18/2023]
Abstract
Water disinfection during drinking water production is one of the most important processes to ensure safe drinking water, which is gaining even more importance due to the increasing impact of climate change. With specific reaction partners, chemical oxidants can form secondary oxidants, which can cause additional damage to bacteria. Cases in point are chlorine dioxide which forms free available chlorine (e.g., in the reaction with phenol) and ozone which can form hydroxyl radicals (e.g., during the reaction with natural organic matter). The present work reviews the complex interplay of all these reactive species which can occur in disinfection processes and their potential to affect disinfection processes. A quantitative overview of their disinfection strength based on inactivation kinetics and typical exposures is provided. By unifying the current data for different oxidants it was observable that cultivated wild strains (e.g., from wastewater treatment plants) are in general more resistant towards chemical oxidants compared to lab-cultivated strains from the same bacterium. Furthermore, it could be shown that for selective strains chlorine dioxide is the strongest disinfectant (highest maximum inactivation), however as a broadband disinfectant ozone showed the highest strength (highest average inactivation). Details in inactivation mechanisms regarding possible target structures and reaction mechanisms are provided. Thereby the formation of secondary oxidants and their role in inactivation of pathogens is decently discussed. Eventually, possible defense responses of bacteria and additional effects which can occur in vivo are discussed.
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Affiliation(s)
- Mischa Jütte
- Technical University of Darmstadt, Institute IWAR, Chair of environmental analytics and pollutants, Franziska-Braun-Straße 7, D-64287 Darmstadt, Germany
| | - Mohammad Sajjad Abdighahroudi
- Technical University of Darmstadt, Institute IWAR, Chair of environmental analytics and pollutants, Franziska-Braun-Straße 7, D-64287 Darmstadt, Germany
| | - Torsten Waldminghaus
- Technical University of Darmstadt, Centre for synthetic biology, Chair of molecular microbiology, Schnittspahnstraße 12, D-64287 Darmstadt, Germany
| | - Susanne Lackner
- Technical University of Darmstadt, Institute IWAR, Chair of water and environmental biotechnology, Franziska-Braun-Straße 7, D-64287 Darmstadt, Germany
| | - Holger V Lutze
- Technical University of Darmstadt, Institute IWAR, Chair of environmental analytics and pollutants, Franziska-Braun-Straße 7, D-64287 Darmstadt, Germany; IWW Water Centre, Moritzstraße 26, D-45476 Mülheim an der Ruhr, Germany; Centre for Water and Environmental Research (ZWU), Universitätsstraße 5, D-45141 Essen, Germany.
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49
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Chen Z, Duan Y, Yin L, Chen Y, Xue Y, Wang X, Mao D, Luo Y. Unraveling the influence of human fecal pollution on antibiotic resistance gene levels in different receiving water bodies using crAssphage indicator gene. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130005. [PMID: 36179618 DOI: 10.1016/j.jhazmat.2022.130005] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 09/12/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Discharged wastewater treatment plant (WWTP) effluents can contaminate receiving water bodies with human feces and alter the abundance of antibiotic resistance genes (ARGs). In this study, we examined the co-occurrence of ARGs, human fecal pollution indicator crAssphage, and antibiotics in human feces and a series of connected receiving water bodies affected by human feces, including water from different treatment units of a WWTP, river, lake, and tap waters. Results showed that crAssphage was detected in 68.2 % of the studied water bodies, confirming widespread human fecal contamination. Both ARG and crAssphage abundances exhibited a distance-decay effect from the emission source to the receiving environment. Interestingly, the detected ARG abundance in the water bodies was significantly correlated with crAssphage abundance but not with the residual antibiotic concentration, demonstrating that the presence of ARG could largely be explained by the extent of fecal pollution, with no clear signs of antibiotic selection. In addition, 14 ARGs co-shared by human feces and water bodies were significantly correlated with crAssphage. Furthermore, a close evolutionary relationship was observed between the blaTEM-1 gene from human feces and aquatic environments. These results imply a potential ARG exchange between human feces and receiving water bodies. Overall, this study provides important insights into the distribution and sources of ARGs in water bodies affected by human fecal contamination.
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Affiliation(s)
- Zeyou Chen
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Yujing Duan
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; School of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001, China
| | - Lichun Yin
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Ying Chen
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Yingang Xue
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213003, China
| | - Xiaolong Wang
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Daqing Mao
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Yi Luo
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China.
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50
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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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