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20 resultsShowing papers similar to Microplastics in urban waters and its effects on microbial communities: a critical review
ClearMicrobiological perspectives on the effects of microplastics on the aquatic environment
This review examines how microplastics interact with microorganisms in aquatic environments, highlighting risks to microbial communities and the potential for microplastics to disrupt ecosystem functions. Microplastics may alter microbial diversity and promote the spread of antibiotic-resistant bacteria.
Watershed urbanization enhances the enrichment of pathogenic bacteria and antibiotic resistance genes on microplastics in the water environment
Researchers compared microplastic biofilm communities (the plastisphere) across watersheds with different levels of urbanization, finding that higher urbanization enriched pathogenic bacteria and antibiotic resistance genes on plastic surfaces in waterways. The study suggests that urban runoff substantially elevates the health risk posed by microplastics as vectors of pathogens and antimicrobial resistance.
Anthropogenic Litter in Urban Freshwater Ecosystems: Distribution and Microbial Interactions
Researchers quantified anthropogenic litter in urban rivers and streams and found that microplastics dominated by mass and particle count compared to macroplastic items. The study highlights urban freshwater systems as major conduits for plastic pollution moving toward marine environments and documents distinct microbial communities on plastic surfaces.
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.
An Exploratory Review of Microplastic Pollution, Associated Microbiomes and Pathogens in Water
This review analyzes over a decade of research on microplastic pollution in surface waters across five continents, focusing on the microorganisms that colonize plastic surfaces. Researchers found that microplastics serve as floating habitats for bacteria, including potential human pathogens and antibiotic-resistant strains. The study highlights that microplastic pollution poses a dual threat by both contaminating water and providing a vehicle for harmful microbes to spread.
The Importance of Biofilms to the Fate and Effects of Microplastics
This review examines how biofilms — communities of microorganisms that form on microplastic surfaces — affect the fate and ecological effects of plastic pollution. Biofilm formation alters how microplastics are transported, ingested, and degraded in the environment, and the plastisphere can harbor pathogens and antibiotic-resistant bacteria that may pose risks to human health.
A critical review of microbiological colonisation of nano- and microplastics (NMP) and their significance to the food chain
This review examined how nano- and microplastics become colonized by diverse microbial communities in aquatic and terrestrial environments, highlighting how these 'plastisphere' biofilms may harbor pathogens and facilitate the spread of antibiotic resistance genes through the food chain.
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.
Recent advances in the relationships between biofilms and microplastics in natural environments
This review summarizes how microorganisms form biofilms on the surface of microplastics in water, changing the particles' physical properties and helping to spread bacteria and genes across ecosystems. These biofilm-coated microplastics can carry harmful microbes into new environments, raising concerns about waterborne disease transmission and the effectiveness of current water treatment methods.
Microplastic-Associated Biofilms and Their Role in the Fate of Microplastics in Aquatic Environment
This review examines how microbial biofilms attached to microplastics in aquatic environments mediate the accumulation and transfer of chemical pollutants, exploring how the 'plastisphere' community influences the fate and ecotoxicological impact of microplastics and co-contaminants.
Microplastic biofilms in water treatment systems: Fate and risks of pathogenic bacteria, antibiotic-resistant bacteria, and antibiotic resistance genes
This review examines how microplastics in drinking water and wastewater treatment plants develop biofilms that harbor dangerous bacteria and antibiotic resistance genes. The biofilm-coated microplastics can protect pathogens from disinfection processes, allowing them to survive treatment and potentially reach tap water. This raises concerns about microplastics serving as vehicles for antibiotic-resistant bacteria in our water supply.
Quantifying health risks of plastisphere antibiotic resistome and deciphering driving mechanisms in an urbanizing watershed
This study measured the health risks posed by antibiotic resistance genes found on microplastic surfaces in a watershed affected by urbanization. Polyethylene microplastics carried the highest risk, and urban development increased the danger by promoting the spread of resistance genes among bacteria living on plastic surfaces. The findings show that microplastics in waterways act as vehicles for antibiotic resistance, which could make infections harder to treat in communities downstream.
Evidence of selective enrichment of bacterial assemblages and antibiotic resistant genes by microplastics in urban rivers
Researchers sampled microplastics from two urban rivers in China and found that the bacterial communities colonizing plastic particles were distinctly different from those in the surrounding water. The microplastic-associated bacteria had lower diversity but higher proportions of biofilm-forming species and functions linked to human disease. Notably, the study found that microplastics selectively enriched antibiotic resistance genes, raising concerns about plastics serving as reservoirs for drug-resistant bacteria.
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.
Beyond the Surface: Biofilms and Microplastics in Aquatic Systems
This review examines how microbial biofilms that form on microplastic surfaces (the 'plastisphere') influence particle transport, degradation rates, and potential toxicity in aquatic environments, including the role of biofilms in carrying pathogens and antibiotic resistance genes.
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.
Metagenomic insights into environmental risk of field microplastics in an urban river
Metagenomic analysis of microplastics sampled along an urban river watershed revealed that MP-associated microbial communities carried antibiotic resistance genes and virulence factors at higher levels than surrounding water, with composition shifting along the river gradient. The findings confirm microplastics as environmental vectors for spreading antimicrobial resistance.
Biofilm on microplastics in aqueous environment: Physicochemical properties and environmental implications
This review examines how bacteria and other microorganisms form sticky films called biofilms on microplastic surfaces in water. These biofilms change how microplastics move through the environment and increase their ability to absorb pollutants like heavy metals, pesticides, and antibiotics. Biofilm-coated microplastics may also carry harmful bacteria, making them a greater potential health risk than clean microplastic particles.
The Plastisphere Resistome: A Systematic Review of Antibiotic Resistance Genes and Resistant Bacteria on Microplastics
This systematic review examines whether microplastic-associated biofilms harbor higher levels of antibiotic-resistant bacteria compared to surrounding environments. If microplastics act as hotspots for antibiotic resistance genes, they could spread drug-resistant bacteria through water systems, posing a serious concern for human health and the effectiveness of antibiotics.
Environmental Health and Safety Implications of the Interplay Between Microplastics and the Residing Biofilm
This review examines the two-way relationship between microplastics and biofilms, the communities of microorganisms that quickly colonize plastic surfaces in the environment. Biofilms on microplastics can harbor harmful bacteria, concentrate toxic chemicals, and help spread antibiotic resistance genes through water systems. Understanding this interplay is important for human health because these contaminated biofilm-coated microplastics can enter drinking water and food supplies.