دورية أكاديمية
Long-term patterns of hydrocarbon biodegradation and bacterial community composition in epipelagic and mesopelagic zones of an Arctic fjord.
| العنوان: | Long-term patterns of hydrocarbon biodegradation and bacterial community composition in epipelagic and mesopelagic zones of an Arctic fjord. |
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| المؤلفون: | Kampouris ID; Arctic Research Centre, Department of Biology, Aarhus University, Aarhus, Denmark; Section for Aquatic Biology, Department of Biology, Aarhus University, Aarhus, Denmark. Electronic address: ioannis.kampouris@bce.au.dk., Gründger GF; Arctic Research Centre, Department of Biology, Aarhus University, Aarhus, Denmark; Section for Aquatic Biology, Department of Biology, Aarhus University, Aarhus, Denmark., Christensen JH; Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Copenhagen, Denmark., Greer CW; National Research Council Canada, Energy, Mining and Environment Research Centre, Montreal, Canada., Kjeldsen KU; Section for Microbiology, Department of Biology, Aarhus University, Aarhus, Denmark., Boone W; Flanders Marine Institute, 8400 Oostende, Belgium., Meire L; Department of Estuarine and Delta Systems, Royal Netherlands Institute of Sea Research, Yerseke 4401 NT, the Netherlands; Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk 3900, Greenland., Rysgaard S; Arctic Research Centre, Department of Biology, Aarhus University, Aarhus, Denmark; Section for Aquatic Biology, Department of Biology, Aarhus University, Aarhus, Denmark; Centre for Earth Observation Science, University of Manitoba, Winnipeg, MB, Canada., Vergeynst L; Arctic Research Centre, Department of Biology, Aarhus University, Aarhus, Denmark; Centre for Water Technology (WATEC), Department of Biological and Chemical Engineering, Aarhus University, Aarhus, Denmark. Electronic address: leendert.vergeynst@bce.au.dk. |
| المصدر: | Journal of hazardous materials [J Hazard Mater] 2023 Mar 15; Vol. 446, pp. 130656. Date of Electronic Publication: 2022 Dec 28. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 9422688 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-3336 (Electronic) Linking ISSN: 03043894 NLM ISO Abbreviation: J Hazard Mater Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Amsterdam : Elsevier, |
| مواضيع طبية MeSH: | Petroleum Pollution* , Petroleum*/metabolism, Estuaries ; RNA, Ribosomal, 16S/genetics ; RNA, Ribosomal, 16S/metabolism ; Seawater/microbiology ; Hydrocarbons/metabolism ; Bacteria/genetics ; Bacteria/metabolism ; Biodegradation, Environmental |
| مستخلص: | Oil spill attenuation in Arctic marine environments depends on oil-degrading bacteria. However, the seasonally harsh conditions in the Arctic such as nutrient limitations and sub-zero temperatures limit the activity even for bacteria capable of hydrocarbon metabolism at low temperatures. Here, we investigated whether the variance between epipelagic (seasonal temperature and inorganic nutrient variations) and mesopelagic zone (stable environmental conditions) could limit the growth of oil-degrading bacteria and lead to lower oil biodegradation rates in the epipelagic than in the mesopelagic zone. Therefore, we deployed absorbents coated with three oil types in a SW-Greenland fjord system at 10-20 m (epipelagic) and 615-650 m (mesopelagic) water depth for one year. During this period we monitored the development and succession of the bacterial biofilms colonizing the oil films by 16S rRNA gene amplicon quantification and sequencing, and the progression of oil biodegradation by gas chromatography - mass spectrometry oil fingerprinting analysis. The removal of hydrocarbons was significantly different, with several polycyclic aromatic hydrocarbons showing longer half-life times in the epipelagic than in the mesopelagic zone. Bacterial community composition and density (16S rRNA genes/ cm 2 ) significantly differed between the two zones, with total bacteria reaching to log-fold higher densities (16S rRNA genes/cm 2 ) in the mesopelagic than epipelagic oil-coated absorbents. Consequently, the environmental conditions in the epipelagic zone limited oil biodegradation performance by limiting bacterial growth. Competing Interests: 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. (Copyright © 2023 Elsevier B.V. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Arctic; Microbiome; Oil biodegradation; Oil-degrading bacteria |
| المشرفين على المادة: | 0 (RNA, Ribosomal, 16S) 0 (Hydrocarbons) 0 (Petroleum) |
| تواريخ الأحداث: | Date Created: 20230105 Date Completed: 20230126 Latest Revision: 20230202 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1016/j.jhazmat.2022.130656 |
| PMID: | 36603421 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1873-3336 |
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| DOI: | 10.1016/j.jhazmat.2022.130656 |