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20 resultsShowing papers similar to High-throughput absolute quantification sequencing reveals the adaptive succession and assembly pattern of plastisphere communities in municipal sewer systems: Influence of environmental factors and microplastic polymer types
ClearWastewater discharges and polymer type modulate the riverine plastisphere and set the role of microplastics as vectors of pathogens and antibiotic resistance
Researchers investigated how wastewater treatment plant discharges and polymer type shape microbial communities on microplastics in a river environment. They found that microplastics harbored significantly higher microbial diversity than surrounding water, and that wastewater discharges led to a 2.3-fold increase in antibiotic resistance gene abundance on the plastic surfaces. Different polymer types, including polyethylene, polypropylene, and PET, each attracted distinct microbial communities with varying levels of pathogens and resistance genes.
From rivers to marine environments: A constantly evolving microbial community within the plastisphere
Researchers sampled 107 plastic pieces across four aquatic ecosystems in southern France and found that the sampling location and polymer chemistry were the strongest drivers of plastisphere microbial community composition, while only 11% of samples showed elevated Vibrio pathogen levels compared to surrounding water.
The plastisphere ecology: Assessing the impact of different pollution sources on microbial community composition, function and assembly in aquatic ecosystems
Researchers studied the microbial communities living on microplastic surfaces (called the plastisphere) across four different aquatic sites and found that plastics host a distinctly different mix of microbes than the surrounding water, shaped by local pollution sources. These plastic-surface microbes also carry more antibiotic resistance genes and show greater potential for breaking down plastics, making the plastisphere both a health concern and a potential bioremediation resource.
Analysis of 16S rRNA amplicon data illuminates the major role of environment in determining the marine plastisphere microbial communities
By reanalyzing publicly available microbiome data from marine microplastics collected at multiple ocean locations, this study found that the surrounding water environment shapes the community of microbes living on plastic surfaces (the plastisphere) more strongly than the type of plastic polymer does. While both location and polymer type matter, once environmental differences were accounted for, polymer type alone had no statistically significant effect on microbial diversity. This is important because microplastics can carry and transport harmful microbes across vast ocean distances, and understanding what controls those communities helps assess the ecological risk.
Microbial Dynamics on Different Microplastics in Coastal Urban Aquatic Ecosystems: The Critical Roles of Extracellular Polymeric Substances
Researchers investigated how microbial communities colonize different types of microplastics in urban coastal waters, forming distinct ecosystems known as plastispheres. They found that the type of plastic significantly shaped which bacteria grew on it and how much sticky extracellular material they produced. Understanding these microbial communities on microplastics matters because they can harbor harmful bacteria and influence how pollutants move through aquatic environments.
The ecology of the plastisphere: Microbial composition, function, assembly, and network in the freshwater and seawater ecosystems
Researchers studied the communities of bacteria and fungi that colonize microplastic surfaces in freshwater and seawater, forming what scientists call the plastisphere. These microplastic-associated communities were distinctly different from those in surrounding water, and included a higher proportion of disease-causing organisms and species involved in pollutant degradation. The findings suggest that microplastics create new habitats that can harbor pathogens and alter natural microbial ecosystems in ways that may affect water quality and human health.
Land use, stratified wastewater and sediment, and microplastic attribute factors jointly influence the microplastic prevalence and bacterial colonization patterns in sewer habitats
Researchers conducted a large-scale survey of microplastics in Shanghai's sewer system, examining how land use and sewer conditions affect which bacteria colonize plastic particles. They found that industrial areas produced different microplastic-associated bacterial communities than residential areas, and that conditions within the sewer further shaped these communities. The study raises concerns that microplastics in sewers may serve as vehicles for transporting potentially harmful bacteria into receiving waters.
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.
16S rRNA gene sequence analysis of the microbial community on microplastic samples from the North Atlantic and Great Pacific Garbage Patches
Researchers compared microbial communities living on microplastics collected from the North Atlantic and Great Pacific Garbage Patches, finding distinct plastisphere communities shaped by ocean region and plastic type. Understanding which microbes thrive on ocean plastic helps assess the risk of harmful or antibiotic-resistant bacteria spreading on plastic debris.
Plastic substrate and residual time of microplastics in the urban river shape the composition and structure of bacterial communities in plastisphere
Researchers conducted an in-site incubation experiment in an urban river using microplastics from three plastic product types (garbage bags, shopping bags, and plastic bottles), finding that both plastic substrate type and incubation time shaped the bacterial communities colonizing the plastisphere. Different plastic products harbored distinct microbial communities, with potential implications for the spread of plastic-associated microorganisms in urban freshwater.
Microplastic biofilm in fresh- and wastewater as a function of microparticle type and size class
Researchers compared the biofilm communities that form on microplastics of different types and sizes in both freshwater and wastewater, finding that biofilm composition was influenced by particle type, size, and water source. These findings advance understanding of the plastisphere — the microbial community unique to plastic surfaces — and its potential role in spreading microorganism-associated risks.
Microplastic polymer properties as deterministic factors driving terrestrial plastisphere microbiome assembly and succession in the field
Researchers incubated five common microplastic polymer types in landfill soil for 14 months and used 16S rRNA sequencing to characterize the plastisphere communities that assembled on each polymer. Polymer type was a significant deterministic factor in plastisphere microbiome composition, which differed from surrounding soil communities and varied over time.
Ecological Roles and Shared Microbes Differentiate the Plastisphere from Natural Particle-Associated Microbiomes in Urban Rivers
Researchers compared the microbial communities living on microplastics versus natural particles in ten urban river systems. While the two communities shared many similarities, the microplastic-associated community, known as the plastisphere, harbored distinct bacteria with specialized abilities to break down complex carbon compounds. The study suggests that microplastics in rivers create unique microbial habitats that may influence nutrient cycling and pollutant degradation differently than natural particles.
Ecological Rolesand Shared Microbes Differentiatethe Plastisphere from Natural Particle-Associated Microbiomes in UrbanRivers
Researchers compared the microbiomes on microplastics (the 'plastisphere') versus natural particles in ten urban rivers using metagenomics, finding similar overall taxonomic and functional compositions between the two. However, the plastisphere harbored distinct specialist taxa with enhanced capacity for complex carbohydrate metabolism and unique ecological strategies.
MicrobialDynamics on Different Microplastics in CoastalUrban Aquatic Ecosystems: The Critical Roles of Extracellular PolymericSubstances
Researchers investigated microbial community composition and extracellular polymeric substance secretion across plastispheres formed on different microplastic types at two coastal urban water sites, using permutational multivariate analysis to show that microplastic type significantly shaped microbial community structure. The findings reveal that EPS production and microbial colonization patterns vary systematically with polymer chemistry, influencing plastisphere ecology.
Dynamic evolution of microbial colonization on indoor microplastics: polymer diversity-driven co-occurrence networks and health risks
Researchers simulated 90 days of indoor microplastic exposure to study how different polymer types, aging, and morphology influence microbial colonization on microplastic surfaces. They found that polymer diversity shaped microbial co-occurrence networks and that the resulting plastisphere communities harbored potential human pathogens.
Plastisphere - a new habitat of microbial community: Composition, structure and ecological consequences
This review examines the plastisphere — microbial communities colonizing microplastics — covering the composition and structure of plastisphere microbiomes across marine, freshwater, and terrestrial environments and discussing ecological consequences including pathogen dispersal.
Plastisphere as a unique metabolic hotspot in river water: Impact of plastic substrate biodegradability
A study of river water found that microplastic surfaces — even from tiny 100-micrometer particles — host distinct microbial communities called plastispheres that function as metabolic hotspots, with richer carbon and nitrogen cycling activity than the surrounding water. The biodegradability of the plastic substrate influenced which microbes colonized it and how they interacted, with biodegradable plastics supporting different communities than conventional plastics. This matters because plastisphere microbes can include potential pathogens and antibiotic-resistant bacteria, and they alter the ecological function of freshwater environments.
Analysis of 16S rRNA amplicon data illuminates the major role of environment in determining the marine plastisphere microbial communities
Researchers analysed 16S rRNA amplicon data from marine plastisphere communities, finding that environmental factors play the dominant role in determining the microbial communities that colonise microplastic surfaces in marine ecosystems.
Microbial community niches on microplastics and prioritized environmental factors under various urban riverine conditions
Researchers manipulated organic content, salinity, and dissolved oxygen in bioreactors to assess which environmental factors most strongly shaped microbial communities colonizing microplastics in urban rivers. Dissolved oxygen and organic carbon content were identified as priority drivers of plastisphere community composition, with implications for predicting pathogen enrichment on MPs across river conditions.