Environmental factors influencing the biodegradation of petroleum hydrocarbons in cold seawater

Siron, Robert; Pelletier, Émilien; Brochu, Charles

doi:10.1007/bf00211621

Cited by 85 publications

(30 citation statements)

References 36 publications

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“…There are reports of low-temperature degradation of jet fuel hydrocarbons and straight-chain aliphatic compounds by psychrotolerant organisms (47) and by polar soil communities (2,6,31,32). There are only a few reports of growth on PAHs or PAH biodegradation at low temperature (1,27,41,45,46). Reports concerning anaerobic degradation of PAHs under sulfate-reducing (11,29,37,40) and nitrate-reducing conditions (3,20,28,30,36,37,40) exist, but these processes were studied at temperatures between 20 and 30°C.…”

mentioning

confidence: 99%

Degradation of Polycyclic Aromatic Hydrocarbons at Low Temperature under Aerobic and Nitrate-Reducing Conditions in Enrichment Cultures from Northern Soils

Eriksson

Södersten

et al. 2003

Appl Environ Microbiol

225

108

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The potential for biodegradation of polycyclic aromatic hydrocarbons (PAHs) at low temperature and under anaerobic conditions is not well understood, but such biodegradation would be very useful for remediation of polluted sites. Biodegradation of a mixture of 11 different PAHs with two to five aromatic rings, each at a concentration of 10 g/ml, was studied in enrichment cultures inoculated with samples of four northern soils. Under aerobic conditions, low temperature severely limited PAH biodegradation. After 90 days, aerobic cultures at 20°C removed 52 to 88% of the PAHs. The most extensive PAH degradation under aerobic conditions at 7°C, 53% removal, occurred in a culture from creosote-contaminated soil. Low temperature did not substantially limit PAH biodegradation under nitrate-reducing conditions. Under nitrate-reducing conditions, naphthalene, 2-methylnaphthalene, fluorene, and phenanthrene were degraded. The most extensive PAH degradation under nitrate-reducing conditions at 7°C, 39% removal, occurred in a culture from fuel-contaminated Arctic soil. In separate transfer cultures from the above Arctic soil, incubated anaerobically at 7°C, removal of 2-methylnaphthalene and fluorene was stoichiometrically coupled to nitrate removal. Ribosomal intergenic spacer analysis suggested that enrichment resulted in a few predominant bacterial populations, including members of the genera Acidovorax, Bordetella, Pseudomonas, Sphingomonas, and Variovorax. Predominant populations from different soils often included phylotypes with nearly identical partial 16S rRNA gene sequences (i.e., same genus) but never included phylotypes with identical ribosomal intergenic spacers (i.e., different species or subspecies). The composition of the enriched communities appeared to be more affected by presence of oxygen, than by temperature or source of the inoculum.

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mentioning

confidence: 99%

Degradation of Polycyclic Aromatic Hydrocarbons at Low Temperature under Aerobic and Nitrate-Reducing Conditions in Enrichment Cultures from Northern Soils

Eriksson

Södersten

et al. 2003

Appl Environ Microbiol

225

108

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“…In comparison to non-petroleum oils, numerous works has been done to study the environmental factors influencing the biodegradation of petroleum hydrocarbons in marine waters (Atlas and Bartha, 1972;Atlas and Bartha, 1973;Siron et al, 1995;Sharma and Pant, 2000;Tango and Islam, 2002). The processes of spreading, evaporation, dispersion, emulsification and dissolution are most important during the early stages of a spill whilst oxidation, sedimentation and biodegradation are more important later on and determine the ultimate fate of the oil (Blumer et al, 1973).…”

Section: M Al-darbi Et Almentioning

confidence: 99%

Biodegradation of Natural Oils in Seawater

et al. 2005

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“…Oil entrapped in and under ICC will be difficult to follow and nearly impossible to recover with present recovery systems. The effectiveness of dispersants and bioremediation will also be reduced due to the low temperatures and lack of nutrients (Mackay 1985;Engelhardt 1994;Siron et al 1995).…”

Section: Oil Spills In Arctic Ice-filled Watersmentioning

confidence: 99%

Potential Effects on Seabirds and Marine Mammals of Petroleum Activity in the Northern Barents Sea

Anker-Nilsson¹,

Isaksen²,

Bakken³

et al. 1998

Colonial Waterbirds

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Environmental factors influencing the biodegradation of petroleum hydrocarbons in cold seawater

Cited by 85 publications

References 36 publications

Degradation of Polycyclic Aromatic Hydrocarbons at Low Temperature under Aerobic and Nitrate-Reducing Conditions in Enrichment Cultures from Northern Soils

Degradation of Polycyclic Aromatic Hydrocarbons at Low Temperature under Aerobic and Nitrate-Reducing Conditions in Enrichment Cultures from Northern Soils

Biodegradation of Natural Oils in Seawater

Potential Effects on Seabirds and Marine Mammals of Petroleum Activity in the Northern Barents Sea

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