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Heavy metal tolerance and polychlorinated biphenyl oxidation in bacterial communities inhabiting the Pasvik River and the Varanger Fjord area (Arctic Norway).
- Source :
-
Marine pollution bulletin [Mar Pollut Bull] 2019 Apr; Vol. 141, pp. 535-549. Date of Electronic Publication: 2019 Mar 12. - Publication Year :
- 2019
-
Abstract
- Heavy metals (HMs) and polychlorobiphenyls (PCBs) enter the Arctic environment through a variety of anthropogenic sources with deleterious effects towards biota and public health. Bacteria first transfer toxic compounds to higher trophic levels and, due to the tight link existing between prokaryotic community functions and the type and concentration of contaminants, they may be useful indicator of pollution events and potential toxicity to other forms of life. The occurrence and abundance of HM-tolerant and PCB-oxidizing bacteria in the sub-Arctic Pasvik river area, heavily impacted by anthropogenic modifications, was related to HM and PCB contamination. This latter more likely derived from local inputs rather than a global contamination with higher PCB and HM amounts (and higher bacterial viable counts) that were determined in inner and middle sections of the River. Finally, a panel of bacteria with potential applications in the bioremediation of cold environments were selected and phylogenetically identified.<br /> (Copyright © 2019 Elsevier Ltd. All rights reserved.)
- Subjects :
- Arctic Regions
Bacteria metabolism
Biodegradation, Environmental
Estuaries
Geologic Sediments analysis
Metals, Heavy analysis
Norway
Oxidation-Reduction
Polychlorinated Biphenyls analysis
Polychlorinated Biphenyls toxicity
Water Pollutants, Chemical analysis
Bacteria drug effects
Metals, Heavy toxicity
Polychlorinated Biphenyls metabolism
Rivers microbiology
Seawater microbiology
Water Pollutants, Chemical metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1879-3363
- Volume :
- 141
- Database :
- MEDLINE
- Journal :
- Marine pollution bulletin
- Publication Type :
- Academic Journal
- Accession number :
- 30955766
- Full Text :
- https://doi.org/10.1016/j.marpolbul.2019.01.070