Colonization characteristics and dynamic transition of archaea communities on polyethylene and polypropylene microplastics in the sediments of mangrove ecosystems
文献类型： 外文期刊
作者： Wang, Qiong 1 ; Zheng, Gang 1 ; Ni, Lingfang 1 ; Wang, Heng 5 ; Li, Weiye 1 ; Guo, Peng 3 ; Wang, Yi 3 ; Zheng, Daoqiong 1 ; Wu, Jiaping 1 ; Zhang, Dongdong 1 ;
作者机构： 1.Zhejiang Univ, Inst Marine Biol & Pharmacol, Ocean Coll, Zhoushan 316021, Zhejiang, Peoples R China
2.Donghai Lab, Zhoushan 316021, Zhejiang, Peoples R China
3.Hubei Acad Agr Sci, Inst Agr Prod Proc & Nucl Agr Technol Res, Wuhan 430064, Hubei, Peoples R China
4.Xianghu Lab, Hangzhou 311231, Zhejiang, Peoples R China
5.Key Lab Hlth Risk Factors Seafood Zhejiang Prov, Zhoushan 316021, Zhejiang, Peoples R China
关键词： Mangrove sediments; Microplastics; Archaeal biomarker; Methanogens; Assembly mechanism
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：13.6； 五年影响因子：12.7 ）
ISSN： 0304-3894
年卷期： 2024 年 471 卷
页码：
收录情况： SCI
摘要： Microplastics are a growing concern in mangrove ecosystems; however, their effects on archaeal communities and related ecological processes remain unclear. We conducted in situ biofilm-enrichment experiments to investigate the ecological influence of polyethylene (PE) and polypropylene microplastics on archaeal communities in the sediments of mangrove ecosystems. The archaeal community present on microplastics was distinct from that of the surrounding sediments at an early stage but became increasingly similar over time. Bathyarchaeota, Thaumarchaeota, Euryarchaeota, and Asgardaeota were the most abundant phyla. Methanolobus, an archaeal biomarker, was enriched in PE biofilms, and significantly controlled by homogeneous selection in the plastisphere, indicating an increased potential risk of methane emission. The dominant archaeal assembly process in the sediments was deterministic (58.85%-70.47%), while that of the PE biofilm changed from stochastic to deterministic during the experiment. The network of PE plastispheres showed less complexity and competitive links, and higher modularity and stability than that of sediments. Functional prediction showed an increase in
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