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61,005 resultsShowing papers similar to Phenotypic and genotypic study associated with biofilm formation for E. coli isolated from UPEC
ClearComparison of Antibiotic Resistance of Escherichia coli Populations from Water or Sediment in Rivers Environments
This study compared antibiotic-resistant E. coli in river water and sediment, examining how bacteria form biofilms and stabilize resistance in these environments. Microplastics in aquatic environments are known to promote biofilm formation and concentrate antibiotic resistance genes, amplifying this public health concern.
Biofilm Formation and Antimicrobial Susceptibility Pattern of Staphylococcus aureus Clinical Isolates from Two Healthcare Facilities in Zaria
Not relevant to microplastics research; this paper investigates antibiotic resistance and biofilm formation in Staphylococcus aureus clinical isolates from Nigerian hospitals, with no connection to microplastic pollution.
Factors Affecting Biofilm Formation and the Effects of These Factors on Bacteria
This review examined the many factors—including strain type, temperature, pH, surface properties, and hydrodynamic conditions—that affect bacterial biofilm formation, and discusses how biofilms influence bacterial behavior, antibiotic resistance, and pathogenicity.
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.
Antibiotic Resistance Mediated by Escherichia coli in Kuwait Marine Environment as Revealed through Genomic Analysis
Researchers used genomic analysis to identify antibiotic resistance genes in Escherichia coli isolated from mollusks and coastal water samples in Kuwait's marine environment. The study found that Kuwait's coastal waters, vulnerable to sewage contamination from storm outlets and waste disposal, harbor E. coli carrying multiple antibiotic resistance gene elements including integrons and plasmids.
Molecular Detection of PapC and hlyA Virulence Genes in Escherichia coli from Clinical Isolates in Bayelsa State, Nigeria
This paper is not relevant to microplastics research — it detects virulence genes in Escherichia coli clinical isolates from hospitals in Bayelsa State, Nigeria, focused on antibiotic resistance.
Pathogenic Escherichia coli Strains Recovered from Selected Aquatic Resources in the Eastern Cape, South Africa, and Its Significance to Public Health
Researchers recovered pathogenic Escherichia coli strains from aquatic environments in the Eastern Cape of South Africa, finding evidence of antimicrobial resistance genes and highlighting the public health significance of waterway contamination as a pathway for resistance proliferation.
Multiple Bacterial Strategies to Survive Antibiotic Pressure: A Review
This review examined multiple bacterial strategies for surviving antibiotic pressure, including genetic mutations, efflux pumps, biofilm formation, and horizontal gene transfer, highlighting how resistance reservoirs exist beyond hospital settings.
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.
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.
Application of metagenomic next-generation sequencing in the diagnosis of urinary tract infection in patients undergoing cutaneous ureterostomy
Researchers applied metagenomic next-generation sequencing alongside urine culture to diagnose urinary tract infections in patients with cutaneous ureterostomy. The study found that combining these methods provides more comprehensive diagnostic information, and identified specific cytokines and microorganisms as promising biomarkers for building effective diagnostic models for this patient population.
Metagenomic insights into taxonomic, functional diversity and inhibitors of microbial biofilms
This review examines the structure, diversity, and quorum-sensing mechanisms of microbial biofilms, highlighting metagenomic approaches for understanding how biofilms promote antibiotic resistance and pathogen spread in hospitals and industrial settings.
Multidrug-resistant Pseudomonas aeruginosa in ICU patients and hospital surfaces: β-lactamase burden, biofilm formation and clonal spread
Researchers characterized 216 Pseudomonas aeruginosa isolates from ICU patients and hospital surfaces in Brazil, finding that 30.5% were multidrug-resistant, 77.3% formed strong biofilms, and clonal analysis revealed cross-hospital transmission — highlighting the role of hospital environments in spreading antibiotic-resistant pathogens.
Comparison 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.
Differential survival of potentially pathogenic, septicemia- and meningitis-causing E. coli across the wastewater treatment train
Researchers screened E. coli isolates from Canadian wastewater treatment plant effluents and found that 86 isolates carried virulence markers characteristic of extraintestinal pathogenic E. coli (ExPEC) strains capable of causing septicemia and meningitis. Many isolates belonged to pandemic lineages (ST131, ST95, ST73) and survived chlorination, indicating that conventional wastewater treatment does not adequately eliminate clinically important pathogenic E. coli.
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.
Total coliform and Escherichia coli in microplastic biofilms grown in wastewater and inactivation by peracetic acid
Researchers found that microplastics support the growth of fecal indicator bacteria including E. coli in biofilms, and that these biofilm communities are more resistant to disinfection by peracetic acid than free-floating cells. The findings support concerns that microplastics act as vectors for pathogens and complicate wastewater disinfection.
Microplastics as active modulators of Escherichia coli biofilm characteristics and their implications on the development of antimicrobial resistance
Researchers found that E. coli biofilms grown in the presence of microplastic beads developed significantly enhanced tolerance to the antibiotic ciprofloxacin, with approximately 60% of cells surviving exposure compared to minimal survival in controls. The microplastic-associated biofilms were nearly seven times thicker and showed enriched extracellular matrix components, suggesting that microplastics may actively promote antimicrobial resistance development.
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.
Investigating Biofilms: Advanced Methods for Comprehending Microbial Behavior and Antibiotic Resistance
This review summarizes recent advances in biofilm research, focusing on how communities of microorganisms form protective layers on surfaces and become resistant to antibiotics. The sticky matrix that holds biofilms together plays a key role in spreading antibiotic resistance genes between bacteria. While not directly about microplastics, the findings are relevant because microplastics in the environment serve as surfaces where these resistant biofilms can form and spread.
Biofilms: hot spots of horizontal gene transfer (HGT) in aquatic environments, with a focus on a new HGT mechanism
This review covers horizontal gene transfer in aquatic biofilms, with emphasis on antibiotic resistance gene spread, and introduces membrane vesicles as a newly recognized HGT mechanism by which bacteria share genetic material, with implications for understanding resistance spread on microplastic surfaces.
Aeromonas spp. in Freshwater Bodies: Antimicrobial Resistance and Biofilm Assembly
Researchers isolated Aeromonas bacteria from freshwater sources and examined their ability to resist antibiotics and form protective biofilms. They found that many strains carried multiple antibiotic resistance genes and could form biofilms that made them harder to eliminate. The study highlights the role of freshwater environments as reservoirs for antibiotic-resistant bacteria that can potentially affect both animal and human health.
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.
Horizontal Gene Transfer of Antibiotic Resistance Genes in Biofilms
This review explains how bacteria living in biofilms -- sticky communities attached to surfaces -- can rapidly share antibiotic resistance genes with each other through horizontal gene transfer, spreading resistance faster than free-floating bacteria. This is relevant to microplastic pollution because microplastics provide ideal surfaces for biofilm formation, potentially acting as hotspots for the spread of antibiotic resistance in the environment.