[Low-temperature microbial degradation of crude oil products differing in the extent of condensation].
Out of the 30 strains capable of oil degradation at 4-6 degrees C, four were selected by the ability to degrade 40% of the oil substrate present in the growth medium: Rhodococcus spp. DS-07 and DS-21 and Pseudomonas spp. DS-09 and DS-22. We studied the activity of these strains as degraders of oil products of various condensation degrees (crude oil, masut, petroleum oils, benzene resins and ethanol-benzene resins) at 4-6 degrees C. The maximum degrees of degradation of masut and ethanol-benzene resins were observed in Pseudomonas spp. DS-22 (17.2% and 5.2%, respectively). The maximum degradation of petroleum oils and benzene resins was observed in Rhodococcus spp. DS-07 (40% and 16.6%, respectively). The strains provide a basis for developing biodegrader preparations applicable to bioremediation of oil-polluted sites under the conditions of cold climate.
Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, Moscow oblast, 142290 Russia.
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Belousova
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AN
Shkidchenko
D001554:Benzene / Q000737:chemistry / Q000378:metabolism; D001673:Biodegradation, Environmental; D003080:Cold Temperature; D004785:Environmental Pollutants / Q000378:metabolism; D000431:Ethanol / Q000737:chemistry / Q000378:metabolism; D010578:Petroleum / Q000378:metabolism*; D011549:Pseudomonas / Q000378:metabolism*; D012240:Rhodococcus / Q000378:metabolism*; D013379:Substrate Specificity
D004785:Environmental Pollutants; D010578:Petroleum; D000431:Ethanol; D001554:Benzene