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20 resultsShowing papers similar to Insight into the responses of antibiotic resistance genes in microplastic biofilms to zinc oxide nanoparticles and zinc ions pressures in landfill leachate
ClearDo microplastic biofilms promote the evolution and co-selection of antibiotic and metal resistance genes and their associations with bacterial communities under antibiotic and metal pressures?
Researchers investigated whether microplastic biofilms promote the evolution and co-selection of antibiotic and metal resistance genes compared to natural substrates, examining how combined antibiotic and metal pressures shape resistant bacterial communities on plastic surfaces.
(Nano)microplastics promote the propagation of antibiotic resistance genes in landfill leachate
Researchers found that (nano)microplastics in municipal landfill leachate actively promote the spread of antibiotic resistance genes, highlighting landfill sites as dual reservoirs of plastic pollution and antimicrobial resistance threats.
New insight into the effect of microplastics on antibiotic resistance and bacterial community of biofilm
Researchers found that different types of microplastics promote distinct biofilm communities and enhance antibiotic resistance gene proliferation compared to natural substrates, suggesting microplastics serve as unique platforms for the spread of antimicrobial resistance.
Distinguishing removal and regrowth potential of antibiotic resistance genes and antibiotic resistant bacteria on microplastics and in leachate after chlorination or Fenton oxidation
Researchers compared chlorination and Fenton oxidation for removing antibiotic resistance genes and antibiotic resistant bacteria from microplastics and surrounding landfill leachate, finding that target ARGs on microplastics were reduced significantly less than those in leachate. The study also characterized regrowth potential after treatment, highlighting microplastics as persistent ARG reservoirs.
Microplastics enrichment characteristics of antibiotic resistance genes and pathogens in landfill leachate
Researchers found that microplastics in landfill leachate serve as surfaces that selectively accumulate antibiotic resistance genes and disease-causing bacteria. Incubation experiments with PET and polypropylene particles showed that pathogens were more abundant on microplastic surfaces than in the surrounding leachate. The study raises concerns that microplastics in landfills may act as vehicles for spreading antibiotic resistance and pathogenic organisms in the environment.
Microplastics act as vectors for antibiotic resistance genes in landfill leachate: The enhanced roles of the long-term aging process
This study examined whether the aging of microplastics in aquatic environments influences their role as vectors for antibiotic resistance genes (ARGs). Aged microplastics showed different ARG enrichment patterns on their surfaces compared to pristine particles, suggesting that weathering changes the capacity of plastic debris to accumulate and spread antibiotic resistance.
Selective enrichment of antibiotic resistance genes and pathogens on polystyrene microplastics in landfill leachate
Antibiotic resistance genes (ARGs) and pathogens were found to be selectively enriched on polystyrene microplastics in landfill leachate over a 60-day experiment, with the genes strB and bla showing the greatest enrichment. The microplastic surfaces harbored distinct and more abundant pathogen communities compared to the surrounding leachate, suggesting microplastics act as vectors for ARG and pathogen accumulation.
Prevalence of antibiotics and antibiotic resistance genes in landfill leachate
This book chapter reviews how landfills accumulate and release antibiotics and antibiotic resistance genes (ARGs) into surrounding groundwater and surface water through leachate — with microplastics mentioned as one of many co-contaminants in landfill environments. While the focus is primarily on antimicrobial resistance rather than microplastics specifically, the work is relevant to understanding how plastics in landfills interact with the broader contamination landscape. The findings highlight landfills as underappreciated hotspots for combined chemical and biological pollution entering water supplies.
Microplastics as hubs enriching antibiotic-resistant bacteria and pathogens in municipal activated sludge
Researchers demonstrated that microplastics in municipal wastewater treatment plants act as "hubs," selectively concentrating antibiotic-resistant bacteria and pathogens in their surface biofilms, with antibiotic-resistance genes enriched up to 4.5-fold compared to sand particles — raising concerns about microplastics spreading drug-resistant microbes into the environment.
Microplastics as carriers of antibiotic resistance genes and pathogens in municipal solid waste (MSW) landfill leachate and soil: a review
This review examines how microplastics in landfill leachate and soil can serve as carriers for antibiotic resistance genes and disease-causing bacteria. Researchers describe how microplastic surfaces create favorable environments for bacterial colonization and gene transfer, potentially spreading antimicrobial resistance. The study highlights an underappreciated pathway through which plastic waste in landfills may contribute to the broader antibiotic resistance crisis.
Responses of bacterial communities and resistance genes on microplastics to antibiotics and heavy metals in sewage environment
Polyvinyl chloride microplastics in sewage enriched pathogenic bacteria and antibiotic resistance genes on their surfaces, and the presence of heavy metals and antibiotics altered but did not eliminate this enrichment over time. The findings suggest microplastics in wastewater environments could facilitate the spread of antibiotic resistance through the microbial community.
The interplay between antimicrobial resistance, heavy metal pollution, and the role of microplastics
This review explores the three-way connection between microplastics, heavy metals, and antibiotic resistance in the environment. Microplastics serve as surfaces where bacteria form biofilms and exchange resistance genes, while heavy metals have been driving bacterial resistance for billions of years through similar genetic mechanisms. Together, these pollutants create hotspots where dangerous antibiotic-resistant bacteria can develop and spread.
Growth and prevalence of antibiotic-resistant bacteria in microplastic biofilm from wastewater treatment plant effluents
Researchers studied antibiotic-resistant bacteria growing in biofilms on microplastic surfaces in wastewater treatment plant effluent. The study found that microplastic biofilms accumulated antibiotic-resistant bacteria including Pseudomonas, Aeromonas, and Bacillus, and that these biofilms harbored higher concentrations of resistance genes compared to surrounding water, suggesting microplastics may serve as reservoirs for antibiotic resistance.
Microplastics are a hotspot for antibiotic resistance genes: Progress and perspective
This review examines growing evidence that microplastics serve as hotspots for antibiotic resistance genes in the environment. Researchers found that microplastics selectively accumulate antibiotic-resistant bacteria and resistance genes on their surfaces across wastewater, aquatic, and terrestrial environments. The dense bacterial communities and concentrated pollutants on microplastic surfaces create favorable conditions for the spread and evolution of antibiotic resistance, raising concerns about potential risks to human health.
Microplastisphere may induce the enrichment of antibiotic resistance genes on microplastics in aquatic environments: A review
This first meta-analysis of antibiotic resistance gene (ARG) enrichment on microplastics found that ARGs were more abundant on microplastic surfaces than on inorganic substrates or in surrounding water, but less abundant than on natural organic substrates. Freshwater microplastics showed a higher degree of ARG enrichment than those in saline water or sewage.
How microplastics and nanoplastics shape antibiotic resistance?
This review examines how micro- and nanoplastics act as vectors for antibiotic resistance genes, facilitating their spread through environmental and biological systems by creating selective pressure and hosting microbial communities that exchange resistance determinants.
Microplastics can selectively enrich intracellular and extracellular antibiotic resistant genes and shape different microbial communities in aquatic systems
Researchers examined how microplastics of different types selectively capture antibiotic resistance genes and shape microbial communities in aquatic systems. They found that microplastics enriched both intracellular and extracellular antibiotic resistance genes, with the enrichment patterns varying by plastic type. The study suggests that microplastics may serve as hotspots for the spread of antimicrobial resistance in wastewater and natural water environments.
Microplastic biofilm may shape microbial community enriched with antibiotic resistance genes to enhance nitrogen transformation under antibiotic stress
This study found that biofilms growing on PVC microplastics in water helped remove nitrogen pollutants but also concentrated antibiotic resistance genes, with the same bacteria often carrying both pollution-cleaning and drug-resistance capabilities. The findings raise concerns that microplastic pollution in waterways could accelerate the spread of antibiotic-resistant bacteria, which poses a growing threat to human health.
Microplastics as emerging reservoirs of antimicrobial resistance: Clinical relevance and environmental mechanisms
This review examines how microplastics act as environmental reservoirs for antibiotic resistance genes, creating selective microenvironments through antibiotic and metal adsorption, biofilm formation, and horizontal gene transfer, with potential pathways to clinical human exposure.
Distinct bacterial communities and resistance genes enriched by triclocarban-contaminated polyethylene microplastics in antibiotics and heavy metals polluted sewage environment
Researchers investigated how triclocarban contamination on polyethylene microplastics affects bacterial biofilm formation and antibiotic resistance gene (ARG) profiles in sewage contaminated with antibiotics and heavy metals. Triclocarban-contaminated microplastics hosted more potential pathogens and resistant bacteria and promoted higher ARG abundance in both biofilms and surrounding water compared to clean microplastics.