Plastic substrate and residual time of microplastics in the urban river shape the composition and structure of bacterial communities in plastisphere

Xu, Libo; Li, Kang; Zhang, Mengjun; Guo, Jiabao; Jia, Weiqian; Bai, Xue-Ning; Tian, Xudong; Huang, Yi

doi:10.1016/j.jenvman.2023.118710

Cited by 9 publications

(6 citation statements)

References 69 publications

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“…The total genomic DNA of bacteria on the filters was extracted using a DNeasy PowerSoil Kit (QIAGEN, Shanghai, China). The details of amplification and following steps are described in Text S4 . 852,843 high-quality sequences were retained and classified into 4,565 amplified sequence variants (ASVs), with taxonomic classification performed using the Silva reference database (version 138) .…”

Section: Methodsmentioning

confidence: 99%

“…The details of amplification and following steps are described in Text S4. 25 852,843 highquality sequences were retained and classified into 4,565 amplified sequence variants (ASVs), with taxonomic classification performed using the Silva reference database (version 138). 44 The raw sequence data sets are available in the NCBI S h o r t R e a d A r c h i v e d a t a b a s e ( B i o P r o j e c t I D : PRJNA1027563).…”

Section: Atmospheric Deposition Samples Collectionmentioning

confidence: 99%

“…Deposition is a crucial environmental behavior for AMPs, and passive sampling methods are easier to use and standardize. Hence, deposition rate is preferred in most relevant studies. , Based on laboratory rodents and human-derived cells or models, previous studies have discussed human health risks caused by chemical toxicity and physical abrasion of AMPs. − But the study of interactions between AMPs and pathogenetic microorganisms lagged, which was highly concerned in water and soil studies. − In the atmospheric field, especially since the COVID-19 pandemic, scholars have begun to concern whether AMPs originating from masks could increase human inhalation of AMPs and act as a medium for pathogens. , Indoor microcosm experiments demonstrated that AMPs could adsorb bioaerosols and selectively enrich harmful bacteria and antibiotic-resistant genes compared to inorganic and natural organic particles . AMPs may provide a microbial niche in the ambient atmosphere and influence the abundance and activity of pathogenic microorganisms .…”

Section: Introductionmentioning

confidence: 99%

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Human Exposure to Ambient Atmospheric Microplastics in a Megacity: Spatiotemporal Variation and Associated Microorganism-Related Health Risk

Xu,

Bai,

et al. 2024

Environ. Sci. Technol.

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Microplastics are found in various human tissues and are considered harmful, raising concerns about human exposure to microplastics in the environment. Existing research has analyzed indoor and occupational scenarios, but long-term monitoring of ambient atmospheric microplastics (AMPs), especially in highly polluted urban regions, needs to be further investigated. This study estimated human environmental exposure to AMPs by considering inhalation, dust ingestion, and dermal exposure in three urban functional zones within a megacity. The annual exposure quantity was 7.37 × 10 4 items for children and 1.06 × 10 5 items for adults, comparable with the human microplastic consumption from food and water. Significant spatiotemporal differences were observed in the characteristics of AMPs that humans were exposed to, with wind speed and rainfall frequency mainly driving these changes. The annual human AMP exposure quantity in urban green land spaces, which were recognized as relatively low polluted zones, was comparable with that in public service zones and residential zones. Notably, significant positive correlations between the AMP characteristics and the pathogenicity of the airborne bacterial community were discovered. AMP size and immune-mediated disease risks brought by atmospheric microbes showed the most significant relationship, where Sphingomonas might act as the potential key mediator.

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Section: Methodsmentioning

confidence: 99%

Section: Atmospheric Deposition Samples Collectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Human Exposure to Ambient Atmospheric Microplastics in a Megacity: Spatiotemporal Variation and Associated Microorganism-Related Health Risk

Xu,

Bai,

et al. 2024

Environ. Sci. Technol.

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“…By producing extracellular polymeric substances (EPS), pioneer microorganisms can facilitate their attachment to surfaces, but also provide a suitable carbon source for other microbial species ( Yang Y. et al, 2020 ). Consequently, early colonizers can be outcompeted by other taxa with increasing duration of exposure to environmental conditions (e.g., incubation time in water), thus leading to converging community composition over time on different materials ( Pinto et al, 2019 ; Yang Y. et al, 2020 ; Nguyen et al, 2021 ; Chaudhary et al, 2022 ; Martínez-Campos et al, 2023 ; Miao et al, 2023 ; Xu et al, 2023 ).…”

Section: Plastisphere Biodiversity Taxon Composition and Factors Affe...mentioning

confidence: 99%

Freshwater plastisphere: a review on biodiversity, risks, and biodegradation potential with implications for the aquatic ecosystem health

Bocci,

Galafassi,

Levantesi

et al. 2024

Front. Microbiol.

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The plastisphere, a unique microbial biofilm community colonizing plastic debris and microplastics (MPs) in aquatic environments, has attracted increasing attention owing to its ecological and public health implications. This review consolidates current state of knowledge on freshwater plastisphere, focussing on its biodiversity, community assembly, and interactions with environmental factors. Current biomolecular approaches revealed a variety of prokaryotic and eukaryotic taxa associated with plastic surfaces. Despite their ecological importance, the presence of potentially pathogenic bacteria and mobile genetic elements (i.e., antibiotic resistance genes) raises concerns for ecosystem and human health. However, the extent of these risks and their implications remain unclear. Advanced sequencing technologies are promising for elucidating the functions of plastisphere, particularly in plastic biodegradation processes. Overall, this review emphasizes the need for comprehensive studies to understand plastisphere dynamics in freshwater and to support effective management strategies to mitigate the impact of plastic pollution on freshwater resources.

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“…The plastisphere in the aquatic environment is also occupied by diverse microorganisms. Most studies reviewed reported a higher diversity and richness of microbial communities in the aquatic plastisphere [51][52][53], except for a study by Xu et al conducted on plastic items incubated in an urban river in China [54]. Delacuvellerie et al observed the riverine plastisphere to have a higher bacterial richness than the marine environments, indicating the differences in microbial enrichment across the plastisphere in different aquatic environments [55].…”

Section: Aquatic Environmentmentioning

confidence: 99%

Terrestrial and Aquatic Plastisphere: Formation, Characteristics, and Influencing Factors

Tang

2024

Sustainability

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The increasing number of plastic particles in the environment gives rise to a unique ecological niche called the plastisphere, which is characterized by a dynamic assemblage of microorganisms comprising autotrophs, heterotrophs, predators, and pathogens. This paper reviews the formation, characteristics, and factors influencing the terrestrial and aquatic plastisphere. The terrestrial and aquatic plastisphere forms when hitchhiking microorganisms, often bacteria, in the environment adhere to the surfaces of plastic particles and alter the surface properties of the particles for subsequent colonization of increasingly tightly clinging microorganisms. The terrestrial plastisphere is not as mobile as the aquatic plastisphere and is defined by the characteristics of the soil anchoring it. The microorganisms on the plastisphere are often defined by the dominant microorganisms in the surroundings, particularly those of the phyla Proteobacteria, Actinobacteria, Bacteroidota, Firmicutes, Chloroflexi, Acidobacteria, Cyanobacteria, Ascomycota, Basidiomycota, Chytridiomycota, Ciliophora, Ochrophyta, and Chlorophyta. However, the compositions and dominant microbial species on different plastic surfaces vary widely as they change with time, plastic properties, and biotic and abiotic environmental factors. Temporal changes in the plastisphere are due to succession. Plastic properties, particularly the type, surface properties, size, color, degree of aging, and chemical leaching, also affect the composition of the plastisphere. Biotic environmental factors comprising the dominant ambient microorganisms and interspecies interactions, together with the abiotic ones, including pH, temperature, nutrient availability, soil properties, salinity, and light, significantly shape the plastisphere. This review provides insight into the biodiversity of the plastisphere, and its roles in spreading pathogens and degrading plastics.

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Plastic substrate and residual time of microplastics in the urban river shape the composition and structure of bacterial communities in plastisphere

Cited by 9 publications

References 69 publications

Human Exposure to Ambient Atmospheric Microplastics in a Megacity: Spatiotemporal Variation and Associated Microorganism-Related Health Risk

Human Exposure to Ambient Atmospheric Microplastics in a Megacity: Spatiotemporal Variation and Associated Microorganism-Related Health Risk

Freshwater plastisphere: a review on biodiversity, risks, and biodegradation potential with implications for the aquatic ecosystem health

Terrestrial and Aquatic Plastisphere: Formation, Characteristics, and Influencing Factors

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