Effects of microplastics on soil microorganisms and microbial functions in nutrients and carbon cycling – A review

The Science of The Total Environment, Год журнала: 2024, Номер 924, С. 171435 - 171435

Опубликована: Март 2, 2024

The harmful effects of microplastics (MPs) pollution in the soil ecosystem have drawn global attention recent years. This paper critically reviews MPs on microbial diversity and functions relation to nutrients carbon cycling. Reports suggested that both plastisphere (MP-microbe consortium) MP-contaminated soils had distinct lower than non-contaminated soils. Alteration physicochemical properties interactions within facilitated enrichment plastic-degrading microorganisms, including those involved (C) nutrient conferred a significant increase relative abundance nitrogen (N)-fixing phosphorus (P)-solubilizing bacteria, while decreased nitrifiers ammonia oxidisers. Depending types, increased bioavailable N P contents nitrous oxide emission some instances. Furthermore, regulated functional activities owing combined toxicity organic inorganic contaminants derived from frequently encountered environment. However, thorough understanding among other still needs develop. Since currently available reports are mostly based short-term laboratory experiments, field investigations needed assess long-term impact (at environmentally relevant concentration) microorganisms their under different types agro-climatic conditions.

Язык: Английский

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Recent advances in the research on effects of micro/nanoplastics on carbon conversion and carbon cycle: A review

Journal of Environmental Management, Год журнала: 2023, Номер 334, С. 117529 - 117529

Опубликована: Фев. 17, 2023

Язык: Английский

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Effects of micro(nano)plastics on soil nutrient cycling: State of the knowledge

Journal of Environmental Management, Год журнала: 2023, Номер 344, С. 118437 - 118437

Опубликована: Июнь 19, 2023

Язык: Английский

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Microplastics alter soil structure and microbial community composition

Environment International, Год журнала: 2024, Номер 185, С. 108508 - 108508

Опубликована: Фев. 16, 2024

Microplastics (MPs), including conventional hard-to-biodegrade petroleum-based and faster biodegradable plant-based ones, impact soil structure microbiota in turn affecting the biodiversity functions of terrestrial ecosystems. Herein, we investigated effects MPs on aggregate distribution microbial community composition microhabitats at scale. Two MP types (polyethylene (PE) polylactic acid (PLA) with increasing size (50, 150, 300 μm)) were mixed a silty loam (0–20 cm) ratio 0.5 % (w/w) rice–wheat rotation system greenhouse under 25 °C for one year. The aggregation, bacterial communities their co-occurrence networks as function size. Conventional generally had similar aggregation communities. They increased proportion microaggregates from 17 to 32 while reducing macroaggregates 84 68 %. stability decreased 1.4 mm 1.0–1.1 independently due decline binding agents (e.g., byproducts proteinaceous substances). type amount strongly affected structure, accounting approximately 54 variance. Due less bioavailable organics, within was more sensitive addition. Co-occurrence network analysis revealed that exacerbated competition among bacteria complexity networks. Such stronger PE than PLA higher persistence soils. Proteobacteria, Bacteroidetes, Chloroflexi, Actinobacteria, Gemmatimonadetes keystone taxa macroaggregates, Actinobacteria Chloroflexi microaggregates. most Overall, both reduced portion large stable aggregates, altering structures taxa.

Язык: Английский

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Polyethylene and polyvinyl chloride microplastics promote soil nitrification and alter the composition of key nitrogen functional bacterial groups

Journal of Hazardous Materials, Год журнала: 2023, Номер 453, С. 131391 - 131391

Опубликована: Апрель 8, 2023

Язык: Английский

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Sources, environmental fate, and impacts of microplastic contamination in agricultural soils: A comprehensive review

The Science of The Total Environment, Год журнала: 2024, Номер 950, С. 175276 - 175276

Опубликована: Авг. 3, 2024

Язык: Английский

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Soil microplastics: Impacts on greenhouse gasses emissions, carbon cycling, microbial diversity, and soil characteristics

Applied Soil Ecology, Год журнала: 2024, Номер 197, С. 105343 - 105343

Опубликована: Фев. 26, 2024

Язык: Английский

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Effects of microplastics on soil carbon pool and terrestrial plant performance

Carbon Research, Год журнала: 2024, Номер 3(1)

Опубликована: Апрель 19, 2024

Abstract Soil, as a primary repository of plastic debris, faces an escalating influx microplastics. Microplastics have the potential to decrease soil bulk density and pH, well alter pore structure aggregation. These changes in physicochemical properties subsequently lead habitat degradation for microbes environmental shifts that impact plant growth. Masquerading carbon storage, microplastics can distort assessments pool by introducing plastic-carbon associated leachates, influencing organic matter (SOM) turnover through priming effects (e.g., dilution, substrate switching, co-metabolisms). Additionally, influence distribution particulate mineral-associated matter, consequently affecting accumulation stability carbon. Furthermore, also chemodiversity dissolved (DOM) soils increasing DOM aromaticity molecular weight while deepening its humification degree. The observed may be attributed inputs from microplastic-derived along with organo-organic organo-mineral interactions coupled microbial processes. Acting inert source carbon, create distinct ecological niche growth contribute necromass formation pathways. Conventional reduce contribution stable whereas bio-microplastics tend increase it. exert wide range on performance both internal external factors, seed germination, vegetative reproductive growth, inducing ecotoxicity genotoxicity. impacts arise alterations environment or uptake plants. Future research should aim elucidate storage within fractions, paying closer attention rhizosphere dynamics such stabilization mineral protection rhizodeposits soils. Graphical

Язык: Английский

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Do Added Microplastics, Native Soil Properties, and Prevailing Climatic Conditions Have Consequences for Carbon and Nitrogen Contents in Soil? A Global Data Synthesis of Pot and Greenhouse Studies

Environmental Science & Technology, Год журнала: 2024, Номер 58(19), С. 8464 - 8479

Опубликована: Май 3, 2024

Microplastics threaten soil ecosystems, strongly influencing carbon (C) and nitrogen (N) contents. Interactions between microplastic properties climatic edaphic factors are poorly understood. We conducted a meta-analysis to assess the interactive effects of (type, shape, size, content), native (texture, pH, dissolved organic (DOC)) (precipitation temperature) on C N contents in soil. found that low-density polyethylene reduced total (TN) content, whereas biodegradable polylactic acid led decrease (SOC). Microplastic fragments especially depleted TN, reducing aggregate stability, increasing N-mineralization leaching, consequently C/N ratio. size affected outcomes; those <200 μm both TN SOC Mineralization-induced nutrient losses were greatest at 1 2.5% weight. Sandy soils suffered highest contamination-induced depletion. Alkaline showed depletion, suggesting high degradability. In low-DOC soils, contamination caused 2-fold greater depletion than with DOC. Sites precipitation temperature had conclusion, there complex interactions determining impacts health. always risks but severity depends characteristics, properties, conditions, potential exacerbation by greenhouse emission-induced climate change.

Язык: Английский

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Microplastic pollution promotes soil respiration: A global‐scale meta‐analysis

Global Change Biology, Год журнала: 2024, Номер 30(7)

Опубликована: Июль 1, 2024

Abstract Microplastic (MP) pollution likely affects global soil carbon (C) dynamics, yet it remains uncertain how and to what extent MP influences respiration. Here, we report on a meta‐analysis determine the effects of microbiome CO 2 emission. We found that significantly increased contents organic C (SOC) (21%) dissolved (DOC) (12%), activity fluorescein diacetate hydrolase (FDAse) (10%), microbial biomass (17%), but led decrease in diversity (3%). In particular, increases components further promote emission (25%) from soil, with much higher effect MPs these emissions than biomass. The could be attributed opposite vs. diversity, as accumulation recruited some functionally important bacteria provided additional substrates for specific heterotrophic microorganisms, while inhibiting growth autotrophic taxa (e.g., Chloroflexi , Cyanobacteria ). This study reveals can increase by causing shifts microbiome. These results underscore potential importance plastic terrestrial fluxes, thus climate feedbacks.

Язык: Английский

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