Unveiling the impact of biodegradable polylactic acid microplastics on meadow soil health DOI Creative Commons
Shuming Liu, Binglin Chen,

Kaili Wang

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Ноя. 13, 2024

Abstract Soil microplastics (MPs) pollution has garnered considerable attention in recent years. The use of biodegradable plastics for mulching led to significant quantities plastic entering agro-ecosystems. However, the effects polylactic acid (PLA) on meadow soils remain underexplored. This study investigates impacts PLA varying particle sizes and concentrations soil physicochemical properties, enzyme activities, microbial communities through a 60-day incubation experiment. PLA-MPs increased pH, organic matter (SOM), total nitrogen (TN) available potassium (AK) content, as well enhanced activities superoxide dismutase (S-SOD), peroxidase (S-POD), catalase (S-CAT), β-glucosidase(S-β-GC) urease (S-UE) activities. Conversely, decrease alkaline phosphatase (S-ALP) activity was observed. influence properties more pronounced with larger sizes, whereas smaller particles had greater effect Additionally, an increase abundance Acidobacteriota, Chloroflexi, Gemmatimonadota, while Proteobacteria, Actinobacteriota, Patescibacteria declined. Mental test analysis indicated that AK, S-UE, S-β-GC are primary factors influencing community composition. Phylogenetic Investigation Communities by Reconstruction Unobserved States (PICRUSt2) demonstrated modify bacterial metabolic pathways. Our results suggest size concentration differentially affect nutrients structure function, observed at higher concentrations.

Язык: Английский

Unveiling the impact of biodegradable polylactic acid microplastics on meadow soil health DOI
Shuming Liu, Binglin Chen,

Kaili Wang

и другие.

Environmental Geochemistry and Health, Год журнала: 2025, Номер 47(2)

Опубликована: Янв. 8, 2025

Язык: Английский

Процитировано

2
Distribution Characteristics and Sources of Microplastics in Inland Wetland Ecosystem Soils DOI Open Access
Xuan Zhang, Changchao Li, Xiaoke Liu

и другие.

Water, Год журнала: 2025, Номер 17(2), С. 231 - 231

Опубликована: Янв. 16, 2025

Microplastic (MP) pollution, an emerging global change factor, disturbs the ecosystem functioning. Inland wetlands, providing important services, might be sink for MPs. Understanding distribution, source, and fate of MPs in inland wetland ecosystems is a prerequisite developing effective management strategy. Here, different types including river wetland, constructed lake were selected to explore pollution patterns therein. Results showed that abundance soil ranges from 532 4309 items/kg. Transparent, fibers, polyethylene terephthalate most common color, shape, polymer type MPs, respectively. The this study did not significantly remove was one main sinks had accumulated large amounts In addition, MP characteristics cluster analyses aquaculture, agricultural cultivation, domestic waste sources area. occluded particulate organic carbon content related abundance. conclusion, reveals special river-constructed-lake which would help better understand distribution source wetlands have implications subsequent control ecological restoration wetlands.

Язык: Английский

Процитировано

1
Potential impact and mechanism of aged polyethylene microplastics on nitrogen assimilation of Lactuca sativa L. DOI Creative Commons

Xiaoli Mou,

Huiyuan Zhu, Rui Dai

и другие.

Ecotoxicology and Environmental Safety, Год журнала: 2025, Номер 291, С. 117862 - 117862

Опубликована: Фев. 1, 2025

Nitrogen (N) is the driving factor for crop yield and quality, more research needed on mechanisms of aged micro/nano plastics (MNPs) N assimilation in edible crops. In this study, pot experiments were conducted to investigate potential effect polyethylene (PE) microplastic addition (particle sizes: 20 0.1 µm, levels: 0.5 % [w/w], referred as control (CK), P20 (20-µm PE), AP20 P0.1 (0.1-µm AP0.1 PE) MNPs accumulation romaine lettuce (Lactuca sativa L.). The results showed that particle size accumulated decreased from root > stem leaf. Compared CK, fresh plant weight significantly by 40.84 51.62 AP0.1, respectively. indicated could affect growth via soil nutrient availability, 100-nm PE NH4+ TN concentrations 9.10 21.99 %, respectively, compared CK. was inhibited MNPs, which manifested soluble protein content under treatments being reduced 30.59 42.11 respectively (P < 0.01). Possible included inhibition carbon assimilation, photosynthesis, Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco). toxic much greater than size, attributed carbonyl hydroxyl groups caused aging. Structural equation modeling nitrogen positively affected total (TN) (0.359), chlorophyll (0.665), Rubisco (0.441), (0.383), biomass (0.460), negatively phosphoenolpyruvate carboxylase (PEPC) (-0.325), sugar (-0.134). This study enhances current understandings effects microplastics findings vegetables may agricultural sustainability food safety.

Язык: Английский

Процитировано

0
Influences of microplastics alone and co-contaminated with cadmium on physiological responses of Chinese cabbage ( Brassica campestris L.), rhizosphere microbes and soil properties in soil DOI
Hui Zhou,

Hongfei Yang,

Xin Zhou

и другие.

Human and Ecological Risk Assessment An International Journal, Год журнала: 2025, Номер unknown, С. 1 - 35

Опубликована: Фев. 14, 2025

Язык: Английский

Процитировано

0
The bridging role of soil organic carbon in regulating bacterial community by microplastic pollution: evidence from different microplastic additions DOI
Jun Wang, Zhengyi Zhu, Lijuan Sun

и другие.

Journal of Hazardous Materials, Год журнала: 2025, Номер 490, С. 137761 - 137761

Опубликована: Фев. 25, 2025

Язык: Английский

Процитировано

0
The Individual and Combined Effects of Microplastics and Antibiotics on Soil Microbial Metabolic Limitation and Carbon Use Efficiency DOI Open Access
Qiuyue Zhang, Yi Tang,

Yanjiao Wang

и другие.

Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Март 23, 2025

ABSTRACT Microplastics and antibiotics are emerging pollutants that accumulate extensively in soils, both exerting adverse effects on soil ecosystems. The mechanisms underlying the combined of microplastics microbial metabolism remain insufficiently understood. Therefore, we evaluated individual different types (non‐degradable polyethylene biodegradable polylactic acid) an antibiotic (oxytetracycline) characteristics. Our results showed community was primarily limited by nitrogen under either or treatments; whereas it phosphorus treatments. All treatments, except for non‐biodegradable microplastic treatment, significantly alleviated carbon limitation ( p < 0.01), with effect being particularly pronounced treatments involving antibiotics. Notably, increased use efficiency 0.05). were influenced type their interaction antibiotics, highlighting complex nature these environmental pollutants. This study provided empirical basis understanding exposure co‐exposure to biodegradable/non‐biodegradable metabolism.

Язык: Английский

Процитировано

0
Short-term effects and mechanisms of micro/nanoplastics on the degradation of microcystin-LR by Sphingopyxis sp. YF1 DOI
Tangjian Peng, Yanqing Tang,

Shengyu Zhang

и другие.

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116422 - 116422

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Soil texture modifies the impact of microplastics on winter wheat growth DOI Creative Commons

Katharina J. Neubert,

Nicolas Brüggemann

Journal of Soils and Sediments, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

Язык: Английский

Процитировано

0
Degradation of biodegradable plastic films in soil: microplastics formation and soil microbial community dynamics DOI
Yue Wang, Runhao Bai, Qi Liu

и другие.

Journal of Hazardous Materials, Год журнала: 2025, Номер unknown, С. 138250 - 138250

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Unveiling the impact of biodegradable polylactic acid microplastics on meadow soil health DOI Creative Commons
Shuming Liu, Binglin Chen,

Kaili Wang

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Ноя. 13, 2024

Abstract Soil microplastics (MPs) pollution has garnered considerable attention in recent years. The use of biodegradable plastics for mulching led to significant quantities plastic entering agro-ecosystems. However, the effects polylactic acid (PLA) on meadow soils remain underexplored. This study investigates impacts PLA varying particle sizes and concentrations soil physicochemical properties, enzyme activities, microbial communities through a 60-day incubation experiment. PLA-MPs increased pH, organic matter (SOM), total nitrogen (TN) available potassium (AK) content, as well enhanced activities superoxide dismutase (S-SOD), peroxidase (S-POD), catalase (S-CAT), β-glucosidase(S-β-GC) urease (S-UE) activities. Conversely, decrease alkaline phosphatase (S-ALP) activity was observed. influence properties more pronounced with larger sizes, whereas smaller particles had greater effect Additionally, an increase abundance Acidobacteriota, Chloroflexi, Gemmatimonadota, while Proteobacteria, Actinobacteriota, Patescibacteria declined. Mental test analysis indicated that AK, S-UE, S-β-GC are primary factors influencing community composition. Phylogenetic Investigation Communities by Reconstruction Unobserved States (PICRUSt2) demonstrated modify bacterial metabolic pathways. Our results suggest size concentration differentially affect nutrients structure function, observed at higher concentrations.

Язык: Английский

Процитировано

0