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20 resultsShowing papers similar to Responses of methane production and methanogenic pathways to polystyrene nanoplastics exposure in paddy soil
ClearIncreased methane production associated with community shifts towards Methanocella in paddy soils with the presence of nanoplastics
Researchers found that low-density polyethylene nanoplastics increased methane production in waterlogged paddy soils by shifting microbial communities toward specific methane-producing organisms. The study suggests that nanoplastic contamination in rice paddies could stimulate the breakdown of fatty acids and boost methane emissions, with implications for understanding carbon cycling and climate change.
Mechanisms Associated with Lower Methane Emissions from Paddy Soil by Aged Polylactic Acid Microplastics
Researchers found that paddy fields with certain management practices emitted less methane, linking microplastic content and soil microbial community shifts to reduced greenhouse gas output. The study highlights how plastic contamination in agricultural soils can unexpectedly alter the carbon cycle.
Polyethylene microplastics alter the microbial functional gene abundances and increase nitrous oxide emissions from paddy soils
Researchers found that polyethylene microplastics in paddy soils significantly increased nitrous oxide emissions by altering microbial community structure and functional gene abundances related to nitrogen cycling.
Microplastics shape microbial communities affecting soil organic matter decomposition in paddy soil
Researchers found that microplastics shape soil microbial communities in paddy soils in ways that affect organic matter decomposition, revealing how bacterial succession and carbon cycling are altered by microplastic presence in agricultural systems.
Low-density polyethylene microplastics and biochar interactively affect greenhouse gas emissions and microbial community structure and function in paddy soil
Researchers examined how low-density polyethylene microplastics and biochar interact when added to paddy soil, affecting greenhouse gas emissions and microbial communities. The study found that both amendments significantly increased methane emissions while suppressing carbon dioxide output, and their combined presence altered soil microbial community structure and functional gene abundances in ways that influence biogeochemical processes.
Effects of nanopolystyrene addition on nitrogen fertilizer fate, gaseous loss of N from the soil, and soil microbial community composition
Researchers found that nanopolystyrene particles added to agricultural soil disrupted nitrogen cycling by altering microbial community composition and increasing gaseous nitrogen losses, potentially reducing fertilizer efficiency and contributing to greenhouse gas emissions in agroecosystems.
Evaluation the impact of polystyrene micro and nanoplastics on the methane generation by anaerobic digestion
Researchers tested the effect of polystyrene microplastics and their leached chemical additives on anaerobic digestion systems, finding that microplastic presence reduced methane generation efficiency and disrupted microbial community function.
Exposure to polystyrene nanoplastic leads to inhibition of anaerobic digestion system
Researchers showed that polystyrene nanoplastics inhibit methane production in sewage sludge digesters in a concentration-dependent manner, reducing methane yield by up to 14% and delaying the process start-up while shifting microbial community composition away from key methane-producing archaea.
Presence of different microplastics promotes greenhouse gas emissions and alters the microbial community composition of farmland soil
Researchers examined how five types of microplastics (PVC, PP, PE, PS, and PET) at different concentrations affect greenhouse gas emissions and microbial communities in farmland soil. The study found that microplastic presence promoted greenhouse gas emissions and altered the composition of soil microbial communities, with effects varying by plastic type and concentration.
Concentration-dependent effects of polystyrene microplastics on methanogenic activity and microbial community shifts in sewer sediment
This study tested how polystyrene microplastics affect methane-producing microbes in sewer sediments and found that low concentrations boosted methane production by over 200%, while higher concentrations had a smaller stimulating effect. The findings matter for wastewater management because microplastics entering sewer systems could alter greenhouse gas emissions and disrupt the microbial processes that treatment plants rely on.
Elevated CO2 aggravated polystyrene microplastics effects on the rice-soil system under field conditions
Researchers found that elevated CO2 concentrations aggravate the negative effects of polystyrene microplastics on rice growth and soil bacterial communities under field conditions, suggesting that climate change may worsen microplastic impacts on agriculture.
Microplastics in agricultural soil: Unveiling their role in shaping soil properties and driving greenhouse gas emissions
This review examines how microplastics in agricultural soils affect carbon and nitrogen cycles and alter greenhouse gas emissions. Researchers found that microplastics reduce soil water retention, decrease soil respiration, and increase emissions of carbon monoxide, methane, and nitrous oxide. The study reveals that microplastic contamination in farmland may have broader climate implications by disrupting the soil processes that regulate greenhouse gas fluxes.
Interference of microplastics on autotrophic microbiome in paddy soils: Shifts in carbon fixation rate, structure, abundance, co-occurrence, and assembly process
Researchers found that both conventional polystyrene and biodegradable PHBV microplastics significantly reduced carbon fixation rates in paddy soil by disrupting autotrophic microbial communities. The study suggests that microplastic contamination in agricultural soils may impair natural carbon sequestration processes, with polystyrene having a stronger inhibitory effect than biodegradable alternatives in bulk soil.
Nanoplastics alter ecosystem multifunctionality and may increase global warming potential
Researchers evaluated how positively and negatively charged polystyrene nanoplastics affect soil ecosystem functions, including nitrogen removal, greenhouse gas emissions, and microbial communities, with and without earthworms. The study found that nanoplastics significantly altered soil microbial community structure and ecosystem multifunctionality, with positively charged particles having more pronounced effects, and evidence indicating that nanoplastics may increase global warming potential through altered greenhouse gas emissions.
A Study of the Effects of Microplastics on Microbial Communities in Marine Sediments
This study investigated how the presence of microplastics in marine sediments affects microbial communities and, specifically, the methane cycle, finding that microplastics significantly altered microbial community structure and function. Since marine sediment microbes play a critical role in regulating greenhouse gas emissions, microplastic contamination could have broader climate-relevant effects beyond direct toxicity.
Exposure to polystyrene nanoplastics reduces bacterial and fungal biomass in microfabricated soil models
Researchers used micro-engineered soil models to study how polystyrene nanoplastics affect soil bacteria and fungi. They found that nanoplastic exposure reduced both bacterial and fungal biomass, with bacteria showing a linear dose-dependent decline and fungi being affected even at the lowest concentrations. The study suggests that nanoplastic pollution in soil may suppress the microbial communities essential for healthy soil function.
Simulation of the effects of microplastics on the microbial community structure and nitrogen cycle of paddy soil
Researchers tested how three types of microplastics affect microbial communities and nitrogen cycling in paddy soil. They found that polylactic acid microplastics significantly altered soil bacterial diversity and shifted community structure, while PET and PVC had less pronounced effects. The study suggests that different types of microplastics may influence soil health and nutrient cycling in distinct ways, which matters for agricultural sustainability.
Dose effect of polyethylene microplastics on nitrous oxide emissions from paddy soils cultivated for different periods
Researchers found that high doses of polyethylene microplastics (0.5% or more) significantly increased nitrous oxide emissions from paddy soils by promoting nitrifier and denitrifier activity, while low doses had negligible effects.
Effects of microplastics on greenhouse gas emissions and the microbial community in fertilized soil
Two particle sizes of microplastics were added to fertilized soil and their effects on dissolved organic carbon, greenhouse gas fluxes, and microbial communities were measured, finding reduced global warming potential due to decreased methane emissions but changes in bacterial and fungal community composition. The study reveals complex interactions between microplastics and soil carbon cycling processes.
Effects of microplastics on microbial community and greenhouse gas emission in soil: A critical review
This review examines how microplastics in soil affect microbial communities and greenhouse gas emissions, finding that microplastics can alter the abundance and activity of soil bacteria in ways that increase carbon dioxide and nitrous oxide release. The plastics change soil structure and chemistry, creating conditions that favor certain gas-producing microbes over others. These effects could worsen climate change while also disrupting soil fertility, with indirect consequences for food production.