科研成果

2024
Xu L, Bai X, Li K, Zhang G, Zhang M, Hu M, Huang Y. Human Exposure to Ambient Atmospheric Microplastics in a Megacity: Spatiotemporal Variation and Associated Microorganism-Related Health Risk. Environmental Science & Technology [Internet]. 2024. 访问链接Abstract
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 * 104 items for children and 1.06 * 105 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.
Li K, Xu L, Bai X, Zhang G, Zhang M, Huang Y. Potential environmental risks of field bio/non-degradable microplastic from mulching residues in farmland: Evidence from metagenomic analysis of plastisphere. Journal of Hazardous Materials [Internet]. 2024;465:133428. 访问链接Abstract
The plastisphere may act as reservoir of antibiotic resistome, accelerating global antimicrobial resistance dissemination. However, the environmental risks in the plastisphere of field microplastics (MPs) in farmland remain largely unknown. Here, antibiotic resistance genes (ARGs) and virulence factors (VFs) on polyethylene microplastics (PE-MPs) and polybutylene adipate terephthalate and polylactic acid microplastics (PBAT/PLA-MPs) from residues were investigated using metagenomic analysis. The results suggested that the profiles of ARG and VF in the plastisphere of PBAT/PLA-MPs had greater number of detected genes with statistically higher values of diversity and abundance than soil and PE-MP. Procrustes analysis indicated a good fitting correlation between ARG/VF profiles and bacterial community composition. Actinobacteria was the major host for tetracycline and glycopeptide resistance genes in the soil and PE-MP plastisphere, whereas the primary host for multidrug resistance genes changed to Proteobacteria in PBAT/PLA-MP plastisphere. Besides, three human pathogens, Sphingomonas paucimobilis, Lactobacillus plantarum and Pseudomonas aeruginosa were identified in the plastisphere. The PE-MP plastisphere exhibited a higher transfer potential of ARGs than PBAT/PLA-MP plastisphere. This work enhances our knowledge of potential environmental risks posed by microplastic in farmland and provides valuable insights for risk assessment and management of agricultural mulching applications.
Xu L, Li K, Bai X, Zhang G, Tian X, Tang Q, Zhang M, Hu M, Huang Y. Microplastics in the atmosphere: Adsorb on leaves and their effects on the phyllosphere bacterial community. Journal of Hazardous Materials [Internet]. 2024;462:132789. 访问链接Abstract
Phyllosphere is the largest interface between the atmosphere and terrestrial ecosystems and serves as a major sink for atmospheric microplastics (MPs). It is also a unique habitat for microbiota with diverse ecological functions. This field study investigated the characteristics of atmospheric MPs adsorbed on leaves with automatic technology, and found their abundance was 3.62 ± 1.29 items cm−2. MPs on leaves were mainly below 80 µm, and dominated by polyamide, polyethene, and rubber. MPs on leaves correlated significantly with the structure and functions of the phyllosphere bacterial community (PBC). Both the MPs abundance and size distribution (MSD) were positively correlated with the α diversity and negatively correlated with the β diversity and network complexity of PBC. PBC functions of environmental and genetic information process were negatively correlated with MPs abundance, and functions related to human diseases and cellular process were positively correlated with MSD significantly. The relative abundance of Sphingomonas was significantly correlated with the MSD, suggesting that Sphingomonas might emerge as the key genus involved in the pathogenicity of PBC mediated by MPs. These results highlighted the ecological health risks of atmospheric MPs as they can be transferred anywhere and potentially increase the pathogenicity of local phyllosphere microflora.
2023
Li K, Zhang M, Jia W, Xu L, Huang Y. Deciphering the effects of LDPE microplastic films on diversity, composition and co-occurrence network of soil fungal community. Applied Soil Ecology. 2023.
Li K, Xu L, Bai X, Zhang G, Zhang M, Huang Y. Differential fungal assemblages and functions between the plastisphere of biodegradable and conventional microplastics in farmland. The Science of the total environment. 2023:167478.
Xu L, Li K, Zhang M, Guo J, Jia W, Bai X, Tian X, Huang Y. Plastic substrate and residual time of microplastics in the urban river shape the composition and structure of bacterial communities in plastisphere. Journal of environmental management. 2023;345:118710.
2022
Xu L, Hu M, Jia W, Zhang M, Tang Q, Tian X, Huang Y. Distribution and transport of atmospheric microplastics and the environmental impacts: A review. Chinese Science Bulletin [Internet]. 2022;67:3565-3579. 访问链接
Li K, Jia W, Xu L, Zhang M, Huang Y. The plastisphere of biodegradable and conventional microplastics from residues exhibit distinct microbial structure, network and function in plastic-mulching farmland. Journal of Hazardous Materials [Internet]. 2022;442:130011. 访问链接Abstract
The inhomogeneity of plastisphere and soil may result in different microbial communities, thus potentially affecting soil functions. Biodegradable plastics offer an alternative to conventional plastics, nevertheless, the inadequate end-of-life treatment of biodegradable plastics may release more microplastics. Herein, we collected PE and PBAT/PLA microplastics in plastic-mulching farmland in Hebei, China. The bacterial communities of soil, PE and PBAT/PLA plastisphere were investigated using 16 S high-throughput sequencing. We found that the structure of bacterial communities in PBAT/PLA plastisphere were significantly distinct from PE plastisphere and soil. The alpha diversities in PBAT/PLA plastisphere were significantly lower than PE plastisphere and soil. Statistical analysis of differentially ASVs suggested that PBAT/PLA microplastics act as a filter, enriching taxa with the capability to degrade plastic polymers such as Proteobacteria and Actinobacteria. Compared to PE plastisphere, PBAT/PLA plastisphere has networks of less complexity, lower modularity, and more competitive interactions. Predicted metabolic pathways involved in human diseases, carbohydrate metabolism, amino acid metabolism, and xenobiotic biodegradation and metabolism were promoted in PBAT/PLA plastisphere, along with the facilitation in abundance of genes associated with carbon and nitrogen cycling. Our results highlighted the uniqueness of plastisphere of biodegradable microplastics from conventional microplastics and their potential impact on soil functions
2021
YZ S, CX D, N C, C D, Y H, Wang J. Biodegradable and conventional microplastics exhibit distinct microbiome, functionality, and metabolome changes in soil. Journal of Hazardous Materials [Internet]. 2021. 访问链接
YZ S, MJ Z, CX D, N C, WQ J, ZL Z, CF D, Y H, Wang J. Contribution of stochastic processes to the microbial community assembly on field‐collected microplastics. Environmental Microbiology [Internet]. 2021. 访问链接
MukeHuang, Chai L, Jiang D, Zhang M, Jia W, Huang Y. Dissolved organic matter (DOM) quality drives biogeographic patterns of soil bacterial communities and their association networks in semi-arid regions. FEMS Microbiology Ecology [Internet]. 2021;97(7). 访问链接
YZ S, CX D, N C, X L, XM L, YM C, Y H, Wang J. Effects of microplastics on soil microbiome: The impacts of polymer type, shape, and concentration. Science of The Total Environment [Internet]. 2021. 访问链接
Qi Q, Yue H, Zhang Z, Nostrand JDV, Wu L, Guo X, Huang Y. Microbial functional responses explain alpine soil carbon fluxes under future climate scenarios. mBio [Internet]. 2021. 访问链接
Gao Q, Gao S, Bates C, Zeng Y, Huang Y. The microbial network property as a bio-indicator of antibiotic transmission in the environment. Science of the Total Environment [Internet]. 2021. 访问链接
Zheng W, Yu S, Zhai S, Huang Y. Enrichment, isolation and evaluation ofpolyhdroxyalkanoate producing marine bacteria fromoil-containing culture. Microbiology China [Internet]. 2021. 访问链接
Zheng W, Yu S, Zhai S, Wu Y, Huang Y. Isolation and evaluation of polyhdroxyalkanoate producing bacteria from mangrove soil. Microbiology China [Internet]. 2021. 访问链接
2020
a c d Yi Huang, Qin Liu c WJCYJW1 *. Agricultural plastic mulching as a source of microplastics in the terrestrial environment. Environmental Pollution [Internet]. 2020;260:114093. 访问链接
Zhang MJ., Chai LW. JWQGJBHY. Deciphering the archaeal communities in tree rhizosphere of the Qinghai-Tibetan plateau. BMC Microbiology. 2020;20:235.
b b b a b b Jie Wang a, 1 XQJGWJQWMZYH1 *. Evidence of selective enrichment of bacterial assemblages and antibiotic resistant genes by microplastics in urban rivers. Jie Wang a, 1, Xiao Qin b, 1, Jiabao Guo b, Weiqian Jia b, Qian Wang a, Mengjun Zhang b, Yi Huang b, * [Internet]. 2020;183:116113. 访问链接
b a a a b Jie Wang a, ⁎ MHQWYSYZYH. LDPE microplastics significantly alter the temporal turnover of soil microbial communities. Science of the Total Environment [Internet]. 2020;726:138682-. 访问链接

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