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61,005 resultsShowing papers similar to Comparison of Antibiotic Resistance of Escherichia coli Populations from Water or Sediment in Rivers Environments
ClearComparison of the Antibiotic Resistance of Escherichia coli Populations from Water and Biofilm in River Environments
Researchers compared antibiotic resistance in E. coli populations from river water versus sediment and biofilm samples at locations upstream and downstream of urban areas in Austria. They found that biofilm and sediment environments harbored bacteria with higher rates of antibiotic resistance compared to the water column. The study suggests that river biofilms may serve as reservoirs for antibiotic-resistant bacteria, with implications for how pollutants including microplastics interact with microbial communities.
Regulation of ARGs abundance by biofilm colonization on microplastics under selective pressure of antibiotics in river water environment
Researchers investigated how biofilms forming on microplastics in river water affect the spread of antibiotic resistance genes under antibiotic pressure. They found that the presence of antibiotics accelerated biofilm colonization on microplastic surfaces and significantly increased the abundance of resistance genes compared to conditions without antibiotics. The study suggests that microplastics in waterways may serve as hotspots for the development and transfer of antibiotic resistance.
Microplastics accumulate priority antibiotic-resistant pathogens: Evidence from the riverine plastisphere
Researchers placed microplastics in river water and found they accumulated more antibiotic-resistant bacteria than natural sand particles, including dangerous pathogens like E. coli and Klebsiella. Most of the bacteria isolated from the plastic surfaces were multi-drug resistant and carried virulence traits like biofilm formation. This suggests microplastics in waterways may act as rafts for spreading antibiotic resistance through the environment.
Microplastics Pose an Elevated Antimicrobial Resistance Risk Than Natural Surfaces via a Systematic Comparative Study of Surface Biofilms in Rivers
A systematic comparison of biofilms on microplastics versus natural surfaces like wood and rock in rivers found that microplastics harbor 10 times more antibiotic-resistant bacteria. The microplastics' water-repelling surface properties encourage the growth of drug-resistant pathogens and the accumulation of resistance genes. This finding is concerning because microplastics flowing through waterways could be spreading antibiotic resistance, which is a major threat to global public health.
Biofilm formation on microplastics and interactions with antibiotics, antibiotic resistance genes and pathogens in aquatic environment
This review explains how microplastics in waterways develop bacterial biofilms on their surfaces that can harbor antibiotic-resistant bacteria and help spread antibiotic resistance genes to new environments. This is concerning for human health because these resistant microbes could eventually reach people through drinking water or seafood consumption.
On the Generation, Impact and Removal of Antibiotic Resistance in the Water Environment
This review explains how antibiotic resistance develops and spreads through water environments — including rivers, groundwater, and wastewater. The findings are relevant to microplastics because plastic particles in water are known to accumulate antibiotic-resistant bacteria, potentially accelerating the spread of drug resistance through aquatic systems.
MicroplasticsPose an Elevated Antimicrobial ResistanceRisk Than Natural Surfaces via a Systematic Comparative Study of SurfaceBiofilms in Rivers
A systematic comparison of biofilms on microplastics and natural river surfaces found that microplastic biofilms carry significantly higher loads of antimicrobial resistance genes, suggesting that microplastics amplify antimicrobial resistance risks beyond what natural substrate biofilms produce.
The Travelling Particles: Investigating microplastics as possible transport vectors for multidrug resistant E. coli in the Weser estuary (Germany)
Scientists tested whether microplastics in the Weser estuary in Germany carry multidrug-resistant ESBL-producing E. coli, finding resistant bacteria on plastic surfaces at concentrations above surrounding water, confirming that microplastics can serve as vectors for antibiotic-resistant pathogens.
Time-course biofilm formation and presence of antibiotic resistance genes on everyday plastic items deployed in river waters
Researchers tracked biofilm formation on everyday plastic items deployed in a river over one year, finding that sampling site (reflecting level of human impact) was the strongest driver of microbial diversity, and that antibiotic resistance genes were present on plastic surfaces throughout.
A review focusing on mechanisms and ecological risks of enrichment and propagation of antibiotic resistance genes and mobile genetic elements by microplastic biofilms
This review examines how microplastics in water serve as surfaces for bacterial biofilms that harbor antibiotic resistance genes. The biofilms that form on microplastic surfaces can spread resistance genes to other bacteria and potentially to organisms that ingest them, including fish and ultimately humans. The authors highlight that microplastic-associated antibiotic resistance is an underappreciated public health risk that needs more research.
Size effects of microplastics on antibiotic resistome and core microbiome in an urban river
Scientists found that microplastics in an urban river serve as platforms for antibiotic-resistant bacteria and dangerous pathogens including Pseudomonas aeruginosa, Mycobacterium tuberculosis, and Legionella pneumophila. Larger microplastic particles harbored more antibiotic resistance genes, and the concentrations of these genes were much higher on plastic surfaces than in the surrounding water. This research raises concerns that microplastics in waterways could spread drug-resistant infections by providing a surface where dangerous bacteria thrive and share resistance genes.
Assessment of Bacterial Isolates Associated with Microplastics and their Resistance to Antibiotics from Rivers Ureje, Emirin, Ogbese, Odo-Ayo and Elemi in Ado- Ekiti, Ekiti- State, Nigeria
Researchers isolated bacteria from five rivers in Ado-Ekiti, Nigeria associated with microplastic surfaces and tested their antibiotic resistance profiles, finding that microplastics harbored pathogenic bacteria including E. coli, Klebsiella pneumoniae, and Salmonella typhi with multi-drug resistance patterns.
Microplastics as a novel facilitator for antimicrobial resistance: Effects of concentration, composition, and size on Escherichia coli multidrug resistance
This study examined how microplastics facilitate antimicrobial resistance by acting as a surface for the co-selection of resistant bacteria, finding that plastic surfaces enrich resistance genes and transfer-capable elements in aquatic environments.
Evaluating the role of microplastics and wastewater in shaping Vibrio spp. and antibiotic resistance gene abundance in urban freshwaters
Researchers sampled water and microplastic biofilms from urban South African rivers and found that microplastics disproportionately enriched Vibrio spp. and tetracycline resistance genes relative to the surrounding water, suggesting microplastics selectively concentrate pathogens and antibiotic resistance genes.
[Research progress on the effect of estuary microplastics on antibiotic resistance genes].
This review summarizes research on how microplastics in estuarine environments influence the spread of antibiotic resistance genes (ARGs), focusing on the role of biofilms that form on plastic surfaces. Microplastic biofilms selectively enrich ARG-carrying bacteria and facilitate horizontal gene transfer, increasing the risk of antibiotic resistance dissemination in ecologically and humanly important estuarine zones.
Microplastics in fresh- and wastewater are potential contributors to antibiotic resistance - A minireview
Researchers reviewed the link between microplastic pollution and the spread of antibiotic resistance in freshwater environments, finding that microplastic surfaces host unique bacterial communities enriched in antibiotic-resistant bacteria and the resistance genes they can share with other microbes. The close packing of bacteria in these plastic-surface biofilms may accelerate the spread of drug-resistant pathogens through drinking water sources, though the full health implications remain poorly understood.
Selectively enrichment of antibiotics and ARGs by microplastics in river, estuary and marine waters
Researchers investigated how microplastics interact with antibiotics and antibiotic resistance genes across river, estuary, and marine environments of varying salinity. They found that microplastics can concentrate both antibiotics and antibiotic resistance genes from surrounding water, with this enrichment effect being strongest in freshwater and decreasing as salinity increases. The study raises concerns that microplastics may serve as vehicles for spreading antibiotic resistance in aquatic ecosystems.
Microplastics and antibiotic-resistant bacteria contamination in a river of central Italy
Researchers sampled a river in central Italy for both microplastics and antibiotic-resistant bacteria, finding polyethylene as the dominant polymer at over 60 percent of detected plastic debris. The study found a high rate of multidrug resistance among isolated bacteria, suggesting that the co-occurrence of microplastics and resistant bacteria in river water may amplify the environmental spread of antimicrobial resistance.
Microplastic biofilms promote the horizontal transfer of antibiotic resistance genes in estuarine environments
Researchers compared how effectively antibiotic resistance genes transfer between bacteria floating freely in water versus bacteria living in biofilms on microplastic surfaces. They found that microplastic biofilms significantly enhanced the transfer of resistance genes compared to free-floating bacteria, with factors like extracellular DNA and cell membrane permeability playing key roles. The study suggests that microplastics in estuaries may act as hotspots for spreading antibiotic resistance in the environment.
Effects of microplastic concentration, composition, and size on Escherichia coli biofilm-associated antimicrobial resistance
This study examined how different types of microplastics affect the development of antibiotic-resistant bacteria through biofilm formation. The researchers found that the concentration, composition, and size of microplastic particles all influence how effectively bacteria like E. coli develop drug resistance. These findings are important because they help explain how widespread plastic pollution may be contributing to the growing global crisis of antibiotic resistance.
Reshaping the antibiotic resistance genes in plastisphere upon deposition in sediment-water interface: Dynamic evolution and propagation mechanism
Researchers examined how antibiotic resistance genes in the microplastic biofilm (plastisphere) evolve as MPs settle from water to sediment, finding that deposition in sediment reshapes ARG profiles and promotes horizontal gene transfer, amplifying resistance gene reservoirs in benthic environments.
Impact of Urbanization on Antibiotic Resistome in Different Microplastics: Evidence from a Large-Scale Whole River Analysis
Researchers conducted a large-scale river survey across urbanization gradients and characterized antibiotic resistance genes on microplastics from each zone, finding that urbanization level strongly predicted the diversity and abundance of resistance genes on plastic surfaces.
Selective enrichment of bacterial pathogens by microplastic biofilm
Researchers incubated biofilms on microplastics and natural substrates in freshwater and found that microplastic surfaces selectively enriched bacterial pathogens and antibiotic resistance genes compared to rock and leaf surfaces. The study suggests that microplastics in waterways may serve as hotspots for harmful bacteria and contribute to the spread of antibiotic resistance in the environment.
Presence of microplastic particles increased abundance of pathogens and antimicrobial resistance genes in microbial communities from the Oder river water and sediment
Researchers incubated microplastic particles in water from the Oder River and found that bacteria growing on the plastic surfaces had significantly higher levels of disease-causing organisms and antibiotic resistance genes compared to surrounding water. This suggests that microplastics in rivers and waterways serve as platforms that concentrate harmful bacteria and help spread drug resistance, posing risks to communities that depend on these water sources.