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Tolerance of Fucus vesiculosus exposed to diesel water-accommodated fraction (WAF) and degradation of hydrocarbons by the associated bacteria
Ryzhik, I.; Pugovkin, D.; Makarov, M.; Roleda, M.Y.; Basova, L.; Voskoboynikov, G. (2019). Tolerance of Fucus vesiculosus exposed to diesel water-accommodated fraction (WAF) and degradation of hydrocarbons by the associated bacteria. Environ. Pollut. 254(Part B): 113072. https://dx.doi.org/10.1016/j.envpol.2019.113072
In: Environmental Pollution. Elsevier: Barking. ISSN 0269-7491; e-ISSN 1873-6424, meer
|  |
| Trefwoorden |
Fucus vesiculosus Linnaeus, 1753 [WoRMS]
Marien/Kust |
| Author keywords |
Barents Sea; Oil pollution; Bioremediation; Algal-bacterial association; Hydrocarbon-oxidising bacteria; Fucus vesiculosus |
| Auteurs | | Top |
- Ryzhik, I.
- Pugovkin, D.
- Makarov, M.
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- Roleda, M.Y.
- Basova, L.
- Voskoboynikov, G.
|
|
| Abstract |
The viability and physiological state of brown macroalgae Fucus vesiculosus and its associated epiphytic bacteria exposed to diesel water-accommodated fraction (WAF), as well as the capacity of this association to deplete petroleum hydrocarbons (HCs) were experimentally tested. After a 6-day exposure treatment, the algal-surface associated bacteria were identified as primarily hydrocarbon-oxidising bacteria (HOB), and the algal-HOB association was able to deplete petroleum hydrocarbons from the diesel WAF by 80%. The HOB density on the algal surface exposed to diesel WAF was 350% higher compared to the control (i.e. HOB density on the algal surface exposed to ambient seawater), which suggest that they actively proliferated in the presence of hydrocarbons and most likely consumed hydrocarbons as their primary organic substrate. Exposure to diesel WAF did not affect the metabolic activity of F. vesiculosus. Higher lipid peroxidation was observed in F. vesiculosus exposed to diesel WAF while catalase concentration decreased only during the first day of exposure. Results suggest F. vesiculosus is tolerant to oil pollution and the algal-HOB association can efficiently deplete petroleum hydrocarbons in oil-contaminated seas. |
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