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61,005 resultsShowing papers similar to Contrasting the diversity patterns and processes of microbial community assembly in water and sediment in Lake Wuchang, China
ClearComplex microplastics significantly influence the assembly process of lake bacterial communities
Researchers examined how complex environmental microplastics -- varying in abundance, shape, size, color, and polymer type -- influence bacterial community assembly in water and sediments of Taihu Lake, China. Microplastics were associated with shifts in bacterial community composition and assembly processes, with distinct communities forming on plastic surfaces compared to surrounding lake water and sediments.
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.
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.
Ecological differentiation and assembly processes of abundant and rare bacterial subcommunities in karst groundwater
Researchers examined ecological differentiation between abundant and rare bacterial communities in karst groundwater in southwest China, revealing distinct assembly processes and environmental drivers that maintain ecosystem stability in these vulnerable aquifers.
Uniqueness and Dependence of Bacterial Communities on Microplastics: Comparison with Water, Sediment, and Soil
Researchers compared bacterial communities on microplastics with those in water, sediment, and soil in the Three Gorges Reservoir area, finding that microplastic-associated communities are unique in composition and ecological function compared to surrounding environments.
Bacterial Community Structure and Its Influencing Factors in Surface Sediments of the Nyang River in the Dry Season, China
Researchers analyzed bacterial community diversity in surface sediments of the Nyang River in Tibet using high-throughput sequencing, finding that climate warming and human activities along this plateau river have measurably shaped microbial composition and structure.
The Impact of Warming on Assembly Processes and Diversity Patterns of Bacterial Communities in Mesocosms
This study analyzed how warming and seasonal variation affect bacterial community composition and assembly processes in lake water and sediments across 18 outdoor mesocosms under three temperature scenarios. Understanding how climate change alters microbial communities in freshwater bodies provides context for interpreting how microplastic contamination — which also restructures microbial communities — interacts with warming.
Different Distribution of Core Microbiota in Upper Soil Layer in Two Places of North China Plain
Researchers compared the composition and distribution of core soil microbiota in upper soil layers at two locations on the North China Plain, examining how habitat and dominant plant species shape bacterial community structure relevant to nutrient cycling and carbon storage. The study found meaningful differences in microbial community composition between the two sites, reflecting local environmental influences.
Bacterial community structure of water, sediment and microplastics in Poyang Lake wetland.
This study compared the bacterial communities living on four types of microplastics (film, foam, fiber, and fragment) in Poyang Lake wetland in China against the bacterial communities in the surrounding water and sediment. The microplastic surfaces hosted distinct microbial communities that differed from both the water and sediment, with foam microplastics supporting the least diverse communities. This "plastisphere" research is important because the unique bacteria colonizing plastic surfaces could spread pathogens or alter nutrient cycles in freshwater wetland ecosystems.
Vertical distribution characteristics of microplastics and bacterial communities in the sediment columns of Jianhu lake in China
Researchers examined microplastic abundance, morphology, and polymer types alongside bacterial community composition in sediment columns (0-60 cm depth) of Jianhu Lake, China, finding microplastic concentrations of 624-3050 particles/kg with rayon, PET, and SBS as dominant polymers, and revealing correlations between microplastic characteristics and bacterial community structure via co-occurrence network analysis.
Effects of microplastics on the structure and function of bacterial communities in sediments of a freshwater lake
Researchers examined how microplastics alter the structure and function of bacterial communities in sediments, finding that plastic exposure shifted community composition and reduced overall diversity compared to plastic-free controls. Functional analysis showed impaired denitrification and organic matter decomposition in microplastic-contaminated sediments, indicating ecosystem-level consequences for nutrient cycling.
[Distribution Characteristics of Microplastic Surface Bacterial Communities Under Flooded and Non-flooded Conditions in Nanjishan Wetland of Poyang Lake].
A 16S sequencing study of bacterial communities in the Poyang Lake wetland found that microbial diversity on microplastic surfaces was lower than in surrounding sediment and water, with the microplastic biofilm community shifting between sediment-like (non-flooded) and water-like (flooded) profiles depending on water level. The plastisphere communities were dominated by distinct bacterial genera including elevated Proteobacteria, suggesting that microplastics select for specific microbial assemblages in natural wetland ecosystems.
Lacustrine plastisphere: Distinct succession and assembly processes of prokaryotic and eukaryotic communities and role of site, time, and polymer types
Researchers investigated how microbial communities colonize different types of microplastic polymers in freshwater lakes. The study found that bacteria and single-celled organisms follow distinct assembly patterns on microplastic surfaces, with colonization time, location, and polymer type all influencing community composition. These findings suggest microplastics serve as carriers that can promote microbial spread in aquatic environments.
Geographic Dispersal Limitation Dominated Assembly Processes of Bacterial Communities on Microplastics Compared to Water and Sediment
Researchers found that geographic dispersal limitation — rather than environmental filtering — was the dominant process shaping bacterial community assembly on microplastics in the Three Gorges Reservoir, distinguishing the 'plastisphere' microbiome from communities in surrounding water and sediment.
Microplastic-associated bacterial assemblages in the intertidal zone of the Yangtze Estuary
Researchers used high-throughput DNA sequencing to profile bacterial communities colonizing microplastics in the intertidal zone of China's Yangtze Estuary, finding that plastisphere community composition reflected the particles' sedimentary versus aquatic origins and included keystone taxa adapted to surface-colonization as well as potential pathogens hitchhiking on plastic surfaces.
Spatial Variations of Aquatic Bacterial Community Structure and Co-Occurrence Patterns in a Coal Mining Subsidence Lake
Bacterial communities in a coal mining subsidence lake and a connected river were characterized spatially, revealing distinct microbial assemblages at different locations. Mining disturbance altered the lake's physical and chemical conditions, which shaped microbial community structure and species interactions. Understanding these communities is important for assessing the ecological recovery potential of post-mining aquatic environments.
Structural and Functional Characteristics of Soil Microbial Communities in Forest–Wetland Ecotones: A Case Study of the Lesser Khingan Mountains
Researchers examined soil microbial communities across a forest-to-wetland gradient in China's Lesser Khingan Mountains, comparing mixed forest, conifer forest, wetland edge, and natural wetland. Natural wetland soils harbored the most distinct bacterial communities, driven primarily by high organic matter, nitrogen, and phosphorus content.
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.
Microplastic distribution in large shallow lake sediments: Variations with offshore distance and implications for microbial communities
Researchers analyzed microplastic distribution in sediments of Taihu Lake at varying distances from shore and examined the effects on microbial communities. They found that microplastic abundance decreased with increasing distance from the shoreline, ranging from 240 to 1,120 items per kilogram. The study suggests that microplastic contamination in lake sediments can significantly alter the composition and diversity of local microbial communities.
The Extent and Pattern of Mariculture Impacts on Spatial and Seasonal Variations of Sediment Bacterial Communities Among Three Coastal Waters
Researchers used high-throughput sequencing to examine spatial and seasonal variations in sediment bacterial communities across three Chinese coastal bays with large-scale suspended mariculture, finding that spatial variation was a stronger driver of community composition than seasonality, with Proteobacteria, Bacteroidetes, and Planctomycetes dominating across all sites and mariculture-associated organic loading shaping local community structure.
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.
Distinct spatiotemporal succession of bacterial generalists and specialists in the lacustrine plastisphere
A study of lacustrine plastisphere bacteria found that generalist species were initially more abundant than specialists on colonizing microplastics but declined over time, with deterministic processes driving generalist assembly and stochastic processes driving specialist assembly.
Impact of microplastics on microbial community in sediments of the Huangjinxia Reservoir—water source of a water diversion project in western China
Researchers examined microplastic contamination and its effects on microbial communities in sediments of the Huangjinxia Reservoir in western China, investigating how microplastic presence alters the composition and function of microbial assemblages in this drinking water source.
Sediment bacterial and fungal communities exhibit distinct responses to microplastic types and sizes in Taihu lake
Researchers conducted microcosm experiments to study how polystyrene and polyethylene microplastics of different sizes affect sediment bacterial and fungal communities in Taihu Lake over 60 days. They found that microplastics reduced microbial diversity and significantly altered community structures, with particle size being the most influential factor. The study suggests that microplastic pollution in lake sediments may disrupt natural biogeochemical processes by shifting microbial community composition and network complexity.