Bogatyrenko E.A., Kim A.V., Polonik N.S., Dunkai T.I., Ponomareva A.L., Dashkov D.V.
Океанология 2022; 62(3): 439-445
Five strains of psychtrophic hydrocarbon-oxidizing bacteria were isolated from the bottom sediments of the Peter the Great Bay of the Sea of Japan and classified as the following species: Rhodococcus erythropolis, Rhodococcus sp., Sphingomonas sp., Pseudomonas sp. and Alcanivorax sp. All the bacteria under study showed a high oxidizing ability in relation to the decomposition of n-alkanes (C9–C27), phytane, pristane and polycyclic aromatic hydrocarbons at 5°C and 22°C. At the same time at 5°C the degradation of hydrocarbons was more intense. Despite the different taxonomic affiliation of the obtained microorganisms all strains primarily utilized short- (C9–C13) and long-chain (C21–27) alkanes, as well as polycyclic aromatic hydrocarbons. The greatest hydrocarbon-oxidizing effect was demonstrated by the Rhodococcus erythropolis AP_291 strain, which utilized more than 50% of all hydrocarbons in the model mixture at 5°C during the first week of the experiment.
