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Papers
20 resultsShowing papers similar to Abiotic and Biotic Effects on Microbial Diversity of Small Water Bodies in and around Towns
ClearUrbanization promotes specific bacteria in freshwater microbiomes including potential pathogens
Researchers used full-length 16S rRNA sequencing to compare freshwater microbial communities across urban and rural lakes in Germany, finding that urbanization consistently promoted specific bacterial genera including potential pathogens such as Escherichia/Shigella and Rickettsia, driven by warming, eutrophication, and wastewater inputs.
Microplastics in urban waters and its effects on microbial communities: a critical review
This critical review examined microplastic pollution in urban freshwater systems and its effects on microbial communities including water microbiomes and biofilm communities. The authors found evidence that microplastics alter microbial diversity, promote antibiotic resistance gene transfer, and disrupt carbon and nutrient cycling.
Linking ecological niches to bacterial community structure and assembly in polluted urban aquatic ecosystems
Researchers examined how ecological niches shape bacterial community structure and assembly in polluted urban water ecosystems. The study found that the specific environmental conditions within different niches play a key role in determining how microbial communities respond to water pollution. These findings have implications for understanding microbial ecology and maintaining aquatic ecosystem health.
Urbanization promotes specific bacteria in freshwater microbiomes including potential pathogens
Urbanization significantly alters freshwater microbial communities, promoting potentially harmful bacterial groups including Escherichia/Shigella and Streptococcus in lakes near cities. Eutrophication driven by urban runoff creates conditions that favor pathogens, posing long-term public health risks as cities continue to grow.
Water Bacterial and Fungal Community Compositions Associated with Urban Lakes, Xi’an, China
Bacterial and fungal communities in urban lakes in Xi'an, China were characterized, revealing diverse microbial assemblages influenced by nutrient levels and land use in the surrounding watershed. Understanding the microbial ecology of urban lakes provides context for how microplastic-associated microbial communities might interact with existing water quality challenges.
Urban non-point source pollutants cause microbial community homogenization via increasing deterministic processes
This study found that non-point source pollutants from urban areas homogenize microbial communities in rivers by increasing the dominance of deterministic processes over random ones. Microplastics from urban runoff are among the non-point source pollutants that can alter aquatic microbial diversity.
Study of Heavy Metals and Microbial Communities in Contaminated Sediments Along an Urban Estuary
Researchers studied heavy metal contamination and microbial community composition in estuarine sediments along an urban waterway, finding that urbanization-driven metal accumulation significantly altered microbial diversity and community structure.
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.
Comparative analysis of microplastic and microbial communities in varied aquatic environments: Disparities in occurrence, interconnections, and ecological implications
Comparative surveys of microplastics and associated microbial communities across river, reservoir, and bay environments in the Dongjiang watershed found that MP abundance and microbial community composition differed significantly by water type, with MP surfaces hosting distinct microbial assemblages.
Microbiomes of the Aquatic Environment
This review examines the diversity and ecological roles of microbial communities in aquatic environments, covering microbiomes associated with aquatic insects, plants, fish, phytoplankton, macrophytes, and microplastics, and their interconnected functions in nutrient cycling and primary production. The authors discuss how climate change, eutrophication, and pollution are shifting microbial community composition in ways that threaten the functioning of freshwater and marine ecosystems.
Phylogenetic distance–decay patterns are not explained by local community assembly processes in freshwater lake microbial communities
This paper is not about microplastics; it studies how environmental factors and spatial distance drive microbial community composition in freshwater lake water and sediment.
[Community Structure and Microbial Function Responses of Biofilms Colonizing on Microplastics with Vertical Distribution in Urban Water].
Biofilm communities colonizing microplastics at different depths in urban water bodies were found to differ significantly in community structure and metabolic function. Microplastics at different depths were exposed to varying light, oxygen, and nutrient conditions, which shaped the attached microbial communities. Understanding how microplastics host distinct microbial assemblages is important for assessing their role as vectors for pathogens and chemical pollutants.
Biological invasions alter environmental microbiomes: a meta-analysis
This meta-analysis of publicly available data found that biological invasions consistently reduce microbial diversity and shift the structure of environmental microbial communities. The findings suggest that invasive species' ecological damage extends beyond visible plant and animal communities to the microbial level, making their impact more pervasive than previously recognized.
Microbial composition on microplastics mediated by stream impairment
This study compared the microbial communities living on microplastics collected from streams with different levels of water quality impairment, finding that poorer water quality was associated with distinct biofilm compositions on the plastic surfaces. Streams with greater impairment harbored different — and potentially more harmful — communities of microorganisms on the microplastics they carried. The findings suggest that microplastics in degraded waterways may act as vectors for spreading pollution-adapted or pathogenic microbes downstream.
Seasonal Patterns of Viromes in Urban Aquatic Environments of Manitoba
Researchers characterised the taxonomy, functional profiles, and seasonal patterns of viral DNA and RNA communities in urban aquatic environments in Winnipeg, Manitoba using metagenomics and quantitative PCR, sampling 11 sites along the Red and Assiniboine rivers across spring, summer, and fall to assess virome distribution in wastewater-receiving waters.
Longitudinal patterns of microplastic concentration and bacterial assemblages in surface and benthic habitats of an urban river
This study measured microplastic concentrations and microbial communities in a river from source to mouth, finding that both plastic levels and unique plastisphere bacterial communities increased downstream of wastewater treatment plant outflows. The results identify wastewater discharge as a key driver of both microplastic loading and microbial community shifts in rivers.
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.
Microplastics increase impact of treated wastewater on freshwater microbial community
Microplastic particles added to treated wastewater effluent amplified the impact on freshwater microbial communities compared to effluent alone, disrupting both bacterial community composition and functional processes. The study suggests that microplastics in treated wastewater discharge may compound the ecological harm caused by residual effluent contaminants on receiving water microbiology.
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.
Spatial Distribution and Driving Factors of Nitrogen Cycle Genes in Urban Landscape Lake
This study mapped the spatial distribution of nitrogen cycle genes in urban landscape lake sediments and water, finding that microbial nitrogen transformation activity correlated with nitrogen input patterns from urban runoff. The work improved understanding of how urban lakes regulate nitrogen eutrophication through microbial-driven processes.