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61,005 resultsShowing papers similar to Metagenomics reveals the response of desert steppe microbial communities and carbon-nitrogen cycling functional genes to nitrogen deposition
ClearLinear responses of soil microbiomes, metagenomic and metabolomic functioning across ecosystems along water gradients in the Altai region, northwestern China
Researchers analyzed soil microbial communities, their genetic functions, and metabolic profiles across four ecosystems along a water gradient in the Altai region of China. Microbial diversity and carbon and nitrogen cycling functions increased linearly with soil moisture, demonstrating how hydrology shapes ecosystem-level microbial processes.
Soil metagenomics reveals the effect of nitrogen on soil microbial communities and nitrogen-cycle functional genes in the rhizosphere of Panax ginseng
Researchers studied how different levels of nitrogen fertilizer affect the soil microbial communities around ginseng roots. They found that moderate nitrogen boosted beneficial microbes and improved ginseng yields, while excessive nitrogen decreased soil pH, reduced microbial diversity, and increased disease-causing organisms. The study highlights the importance of balanced fertilizer use for maintaining healthy soil ecosystems in agricultural settings.
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.
Unveiling microplastic's role in nitrogen cycling: Metagenomic insights from estuarine sediment microcosms
Researchers used metagenomic analysis to examine how polyethylene and polystyrene microplastics affect nitrogen cycling in estuarine sediments. They found that microplastics altered the abundance of genes involved in key nitrogen transformation processes like nitrification and denitrification. The study reveals that microplastic pollution in estuaries may disrupt important biogeochemical cycles that support aquatic ecosystem health.
Metagenomics reveals the effect of long-term fertilization on carbon cycle in the maize rhizosphere
Metagenomics analysis of maize rhizosphere soil revealed that long-term chemical nitrogen fertilizer treatments increased abundance of genes regulating the reductive citrate cycle for carbon fixation, while straw return treatments increased carbon degradation gene abundance.
Nitrogen and phosphorus addition affects community assembly and network structure of phyllosphere and rhizosphere microbiomes in the Inner Mongolia steppe
Researchers examined how nitrogen and phosphorus addition altered bacterial and fungal community assembly and network structure in phyllosphere and rhizosphere microbiomes of an Inner Mongolian steppe, finding that nutrient addition decreased diversity, shifted assembly toward deterministic processes for bacteria and stochastic processes for fungi, and increased network complexity while reducing stability.
Soil microbial community composition and nitrogen enrichment responses to the operation of electric power substation
Researchers collected soil samples from seven sites at varying distances from an electric power substation in southeastern China and used metagenomic sequencing to characterize microbial diversity and nitrogen cycling processes. They found that proximity to the substation reduced nitrogen fixation capacity and increased nitrification, with soil moisture, pH, and electrical conductivity identified as key determinants of community composition.
Anthropogenic land uses shape denitrification-related microbial communities in freshwater river ecosystems
Researchers investigated how anthropogenic land uses (agricultural and urbanized) versus natural land uses shape denitrification-related microbial communities in the Weihe and Hanjiang Rivers in China's Qinling Mountains using deep 16S rRNA gene sequencing of water and sediment samples. Results revealed that land-use type significantly alters the composition and function of nitrogen-cycling microbial communities in freshwater river ecosystems.
Archaeal contribution to carbon-functional composition and abundance in China’s coastal wetlands: Not to be underestimated
Researchers investigated microbial diversity and carbon-functional gene composition across twenty coastal wetlands along China's coast, finding that archaeal rather than bacterial communities dominate carbon-functional gene composition and that Nanoarchaeaeota is the key archaeal phylum driving carbon cycling in anoxic sediments.
Ecological Trait-Based Digital Categorization of Microbial Genomes for Denitrification Potential
Researchers developed a digital method for categorizing microbial genomes based on their ability to perform denitrification, the process by which bacteria convert nitrates into nitrogen gas. They analyzed thousands of bacterial genomes to identify which species carry the full set of genes needed for complete denitrification. The study provides a tool for better understanding how different microbes contribute to the global nitrogen cycle, which affects water quality and greenhouse gas emissions.
Response of microbial communities and biogeochemical cycling functions to sediment physicochemical properties and microplastic pollution under damming and water diversion projects
Researchers investigated how damming and water diversion projects affect microbial communities and biogeochemical cycling in reservoir sediments, with a focus on carbon, nitrogen, phosphorus, and sulfur cycle functional genes. They found that microplastic pollution in sediments interacted with these altered conditions to influence microbial function. The study highlights the complex interplay between infrastructure projects, microplastic contamination, and the microbial processes that drive nutrient cycling in freshwater systems.
Mechanisms of polyethylene microplastics on microbial community assembly and carbon-nitrogen transformation potentials in soils with different textures
Researchers used DNA sequencing to examine how polyethylene microplastics affect soil microbial communities and carbon-nitrogen cycling across soils with different textures. They found that microplastics significantly shifted microbial community composition and altered the abundance of genes involved in carbon and nitrogen transformation, with effects varying by soil type. The study suggests that microplastic contamination may disrupt fundamental nutrient cycling processes differently depending on soil characteristics.
Microplastics induced the differential responses of microbial-driven soil carbon and nitrogen cycles under warming
Researchers examined how the combination of microplastic pollution and warming temperatures affects soil carbon and nitrogen cycling driven by microbial communities. The study found that microplastics altered microbial responses to warming in ways that disrupted both carbon decomposition and nitrogen transformation processes in soil.
Microplastics Increase the Risk of Greenhouse Gas Emissions and Water Pollution in a Freshwater Lake by Affecting Microbial Function in Biogenic Element Cycling: A Metagenomic Study
Researchers used metagenomic analysis to examine how microplastics affect microbial community function in a freshwater lake, finding that microplastic contamination disrupts biogenic element cycling processes and increases the risk of greenhouse gas emissions and water quality degradation.
Unveiling the hidden world of microorganisms and their impact on the Earth's ecosystems
This paper is not directly about microplastics; it is a broad review of microbial ecology covering microorganism roles in biogeochemical cycling of carbon, nitrogen, phosphorus, sulfur, and metals, and how advances in genomics have transformed our understanding of microbial community diversity and function.
Long-Term Compost Amendment Changes Interactions and Specialization in the Soil Bacterial Community, Increasing the Presence of Beneficial N-Cycling Genes in the Soil
Researchers found that long-term compost amendment significantly altered soil bacterial community structure and functional specialization, increasing microbial network complexity and promoting functional guilds associated with organic matter decomposition compared to non-amended soils.
Polyethylene microplastic and soil nitrogen dynamics: Unraveling the links between functional genes, microbial communities, and transformation processes
Researchers conducted a six-month experiment to understand how polyethylene microplastics in soil affect nitrogen cycling, a process critical for soil fertility and plant nutrition. They found that while total nitrogen levels stayed stable, microplastics significantly altered the forms of nitrogen present by increasing ammonium and nitrate while decreasing dissolved organic nitrogen. The study suggests that microplastics reshape soil microbial communities and their nitrogen-processing activities, potentially disrupting the natural nutrient balance in agricultural soils.
Soil Microbial Communities in Pseudotsuga sinensis Forests with Different Degrees of Rocky Desertification in the Karst Region, Southwest China
Researchers studied how increasing levels of rocky desertification in karst forests in southwest China affect soil microbial communities. They found that bacterial diversity declined significantly as desertification worsened, while fungal communities showed more resilience. Key soil properties including pH, organic carbon, and available nitrogen were identified as the main drivers shaping these microbial community shifts.
Microplastic induces microbial nitrogen limitation further alters microbial nitrogentransformation: Insights from metagenomic analysis
Researchers studied how both conventional and biodegradable microplastics affect nitrogen cycling in soil over 120 days. They found that biodegradable microplastics significantly disrupted microbial nitrogen processes by acting as a carbon source that shifted bacterial communities toward nitrogen-fixing species. The findings suggest that even biodegradable plastics in soil can alter nutrient availability in ways that may affect soil fertility and plant growth.
Warming alters temporal patterns of microbial-mediated nitrogen cycling under microplastics stress in intertidal sediment ecosystems
Researchers incubated intertidal sediment microcosms with polyethylene microplastics at two temperatures (25 and 30 degrees C) to examine how warming interacts with microplastics to alter microbial nitrogen cycling. Elevated temperature and microplastic concentrations disrupted key nitrogen-cycling functions, with metagenomic analysis revealing shifts in functional gene composition that could affect coastal nutrient dynamics.
MicroplasticDiversityas a Potential Driver of SoilDenitrification Shifts
Researchers conducted a microcosm experiment with four levels of microplastic diversity and used metagenomic sequencing to show that increasing microplastic diversity significantly raised soil pH and organic carbon content while driving shifts in denitrification function in soil microbial communities.
[Response of Relationship Between Microplastic Abundance and Nitrogen Metabolism Function Microorganisms and Genes in Water].
Researchers investigated the relationship between microplastic abundance and nitrogen-metabolizing microorganisms and genes in Lake Ulansuhai using microscopy and metagenomic sequencing, finding that microplastics in freshwater environments significantly influenced the composition and activity of nitrogen metabolism functional bacteria and associated genes.
The Impact of Metolachlor Applications and Phytoremediation Processes on Soil Microorganisms: Insights from Functional Metagenomics Analysis
This paper is not about microplastics — it studies how phytoremediation plants affect soil microbial biodiversity in fields contaminated with the herbicide metolachlor, with no connection to microplastic pollution.
The impact of different preceding crops on soil nitrogen structure and nitrogen cycling in tobacco-planting soil
Researchers examined how the crop grown in a field before tobacco affects soil nitrogen levels and the microbial genes responsible for nitrogen cycling, finding that barley and rapeseed as preceding crops significantly increased available nitrogen while suppressing key nitrification genes. The results suggest crop rotation can meaningfully shape soil nutrient dynamics and microbial communities, with implications for sustainable tobacco farming.