PMID- 34846850 OWN - NLM STAT- MEDLINE DCOM- 20220106 LR - 20220106 IS - 1520-5851 (Electronic) IS - 0013-936X (Linking) VI - 55 IP - 24 DP - 2021 Dec 21 TI - Characterization of Microplastic-Associated Biofilm Development along a Freshwater-Estuarine Gradient. PG - 16402-16412 LID - 10.1021/acs.est.1c04108 [doi] AB - Microplastic contamination is an increasing concern worldwide. Biofilms rapidly develop on surfaces in aquatic habitats, but the processes of biofilm formation and variation in bacterial community succession on different microplastics introduced into freshwater and estuarine environments are not well understood. In this study, the biofilm bacterial communities that developed on three different types of microplastics that are prevalent in the environment, high-density polyethylene (HDPE), polyethylene terephthalate (PET), and polystyrene (PS), was investigated. Virgin microplastics were incubated in microcosms over a period of 31 days with water collected along a freshwater-estuarine gradient of the Raritan River in New Jersey. Through long-read MinION sequencing of bacterial ribosomal operons, we were able to examine biofilm bacterial communities at a species- and strain-level resolution. Results indicated that both salinity level and microplastic type impacted biofilm formation and promoted colonization by distinct microbial communities. Limnobacter thiooxidans was found to be one of the most abundant microplastics colonizing-bacteria, and it is hypothesized that different types of microplastics could select for different strains. Our findings indicate that multiple groups of highly similar L. thiooxidans rRNA operons could be discerned within the community profiles. Phylogenetic reconstruction further established that various Linmobacter species uniquely colonized the different microplastics from the different sampling sites. Our findings indicate that microplastics support abundant and diverse bacterial communities and that the various types of microplastics can influence how different bacterial biofilms develop, which may have ecological impacts on aquatic ecosystems. FAU - Qiang, Liyuan AU - Qiang L AD - Department of Biochemistry and Microbiology, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, 76 Lipman Drive, New Brunswick, New Jersey 08901-8525, United States. AD - College of Mechanical and Electrical Engineering, Shihezi University, Xinjiang 832003, China. AD - State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China. FAU - Cheng, Jinping AU - Cheng J AUID- ORCID: 0000-0003-3585-6645 AD - Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), State Key Laboratory of Marine Pollution & Department of Ocean Science, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China. FAU - Mirzoyan, Seda AU - Mirzoyan S AD - Department of Marine and Coastal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, 71 Dudley Road, New Brunswick, New Jersey 08901-8521, United States. AD - Department of Zoology, Faculty of Science, Charles University, Prague 128 00, Czech Republic. FAU - Kerkhof, Lee J AU - Kerkhof LJ AUID- ORCID: 0000-0001-9107-8695 AD - Department of Marine and Coastal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, 71 Dudley Road, New Brunswick, New Jersey 08901-8521, United States. FAU - Haggblom, Max M AU - Haggblom MM AUID- ORCID: 0000-0001-6307-7863 AD - Department of Biochemistry and Microbiology, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, 76 Lipman Drive, New Brunswick, New Jersey 08901-8525, United States. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20211130 PL - United States TA - Environ Sci Technol JT - Environmental science & technology JID - 0213155 RN - 0 (Microplastics) RN - 0 (Plastics) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Biofilms MH - Environmental Monitoring MH - *Microbiota MH - Microplastics MH - Phylogeny MH - Plastics MH - Rivers MH - *Water Pollutants, Chemical/analysis OTO - NOTNLM OT - Oxford Nanopore MinION OT - aquatic OT - bacterial community analysis OT - biofilm OT - microplastics EDAT- 2021/12/01 06:00 MHDA- 2022/01/07 06:00 CRDT- 2021/11/30 17:11 PHST- 2021/12/01 06:00 [pubmed] PHST- 2022/01/07 06:00 [medline] PHST- 2021/11/30 17:11 [entrez] AID - 10.1021/acs.est.1c04108 [doi] PST - ppublish SO - Environ Sci Technol. 2021 Dec 21;55(24):16402-16412. doi: 10.1021/acs.est.1c04108. Epub 2021 Nov 30.