PMID- 33045590 OWN - NLM STAT- MEDLINE DCOM- 20201218 LR - 20201218 IS - 1873-6424 (Electronic) IS - 0269-7491 (Linking) VI - 268 IP - Pt A DP - 2021 Jan 1 TI - Bacterial communities as indicators of environmental pollution by POPs in marine sediments. PG - 115690 LID - S0269-7491(20)36379-X [pii] LID - 10.1016/j.envpol.2020.115690 [doi] AB - Decades of intensive discharge from industrial activities into coastal systems has resulted in the accumulation of a variety of persistent organic pollutants (POPs) in marine waters and sediments, having detrimental impacts on aquatic ecosystems and the resident biota. POPs are among the most hazardous chemicals originating from industrial activities due to their biotoxicity and resistance to environmental degradation. Bacterial communities are known to break down many of these aromatic compounds, and different members of naturally occurring bacterial consortia have been described to work in syntrophic association to thrive in heavily contaminated waters and sediments, making them potential candidates as bioindicators of environmental pollution. In this study environmental, sampling was combined with chemical analysis of pollutants and high-resolution sequencing of bacterial communities using Next Generation Sequencing molecular biology tools. The aim of the present study was to describe the bacterial communities from marine sediments containing high loads of POPs and to identify relevant members of the resident microbial communities that may act as bioindicators of contamination. Marine sediments were collected from a coastal bay area of the Baltic Sea historically influenced by intense industrial activity, including metal smelting, oil processing, and pulp and paper production. Different types of POPs were detected at high concentrations. Fiberbank sediments, resulting from historic paper industry activity, were found to harbour a clearly distinct bacterial community including a number of bacterial taxa capable of cellulolytic and dechlorination activities. Our findings indicate that specific members of the bacterial communities thrive under increasing levels of POPs in marine sediments, and that the abundances of certain taxa correlate with specific POPs (or groups), which could potentially be employed in monitoring, status assessment and environmental management purposes. CI - Copyright (c) 2020 Elsevier Ltd. All rights reserved. FAU - Rodriguez, Juanjo AU - Rodriguez J AD - Department of Microbiology, University of Helsinki, Helsinki, Finland. Electronic address: jj.rserrano@gmail.com. FAU - Gallampois, Christine M J AU - Gallampois CMJ AD - Department of Chemistry, Umea University, Umea, Sweden. FAU - Haglund, Peter AU - Haglund P AD - Department of Chemistry, Umea University, Umea, Sweden. FAU - Timonen, Sari AU - Timonen S AD - Department of Microbiology, University of Helsinki, Helsinki, Finland. FAU - Rowe, Owen AU - Rowe O AD - Department of Microbiology, University of Helsinki, Helsinki, Finland; Helsinki Commission (HELCOM), Baltic Marine Environment Protection Commission, Helsinki, Finland. LA - eng PT - Journal Article DEP - 20200925 PL - England TA - Environ Pollut JT - Environmental pollution (Barking, Essex : 1987) JID - 8804476 RN - 0 (Environmental Pollutants) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Ecosystem MH - Environmental Monitoring MH - *Environmental Pollutants MH - Environmental Pollution MH - Geologic Sediments MH - *Water Pollutants, Chemical/analysis OTO - NOTNLM OT - Bacterial communities OT - Baltic sea OT - Environmental indicators OT - Environmental pollution OT - Persistent organic pollutants COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2020/10/13 06:00 MHDA- 2020/12/19 06:00 CRDT- 2020/10/12 20:12 PHST- 2019/11/12 00:00 [received] PHST- 2020/08/24 00:00 [revised] PHST- 2020/09/16 00:00 [accepted] PHST- 2020/10/13 06:00 [pubmed] PHST- 2020/12/19 06:00 [medline] PHST- 2020/10/12 20:12 [entrez] AID - S0269-7491(20)36379-X [pii] AID - 10.1016/j.envpol.2020.115690 [doi] PST - ppublish SO - Environ Pollut. 2021 Jan 1;268(Pt A):115690. doi: 10.1016/j.envpol.2020.115690. Epub 2020 Sep 25.