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DOI | 10.1038/s41467-020-16235-3 |
Microplastics affect sedimentary microbial communities and nitrogen cycling | |
Seeley, Meredith E.; Song, Bongkeun; Passie, Renia; Hale, Robert C. | |
2020-05-12 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2020 |
卷号 | 11期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Microplastics are ubiquitous in estuarine, coastal, and deep sea sediments. The impacts of microplastics on sedimentary microbial ecosystems and biogeochemical carbon and nitrogen cycles, however, have not been well reported. To evaluate if microplastics influence the composition and function of sedimentary microbial communities, we conducted a microcosm experiment using salt marsh sediment amended with polyethylene (PE), polyvinyl chloride (PVC), polyurethane foam (PUF) or polylactic acid (PLA) microplastics. We report that the presence of microplastics alters sediment microbial community composition and nitrogen cycling processes. Compared to control sediments without microplastic, PUF- and PLA-amended sediments promote nitrification and denitrification, while PVC amendment inhibits both processes. These results indicate that nitrogen cycling processes in sediments can be significantly affected by different microplastics, which may serve as organic carbon substrates for microbial communities. Considering this evidence and increasing microplastic pollution, the impact of plastics on global ecosystems and biogeochemical cycling merits critical investigation. Plastic pollution has infiltrated every ecosystem, but few studies have quantified the biogeochemical or ecological effects of plastic. Here the authors show that microplastics in ocean sediment can significantly alter microbial community structure and nitrogen cycling. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000537242500013 |
WOS关键词 | SMALL-PLASTIC DEBRIS ; MARINE ; POLYURETHANE ; DEGRADATION ; BIODEGRADATION ; TRANSPORT ; BACTERIAL |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/249948 |
专题 | 资源环境科学 |
作者单位 | Virginia Inst Marine Sci, William & Mary, POB 1346, Gloucester Point, VA 23062 USA |
推荐引用方式 GB/T 7714 | Seeley, Meredith E.,Song, Bongkeun,Passie, Renia,et al. Microplastics affect sedimentary microbial communities and nitrogen cycling[J]. NATURE COMMUNICATIONS,2020,11(1). |
APA | Seeley, Meredith E.,Song, Bongkeun,Passie, Renia,&Hale, Robert C..(2020).Microplastics affect sedimentary microbial communities and nitrogen cycling.NATURE COMMUNICATIONS,11(1). |
MLA | Seeley, Meredith E.,et al."Microplastics affect sedimentary microbial communities and nitrogen cycling".NATURE COMMUNICATIONS 11.1(2020). |
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