Enrichment culture of nitrifying bacteria isolated from soil contaminated with polycyclic aromatic hydrocarbons
An enrichment culture of nitrifying microorganisms was obtained from coal dump soils contaminated with PAHs. The culture consisted of approximately 38% Nitrosomonas and Nitrolancea. The activity of ammonium oxidation was 30.3±2.8 µg N/h/g, and nitrite oxidation – 14.7±0.0 µg N/h/g. All the genes necessary for ammonium and nitrite oxidation (amoCAB and nxrAB) were found in the genomes of the nitrifiers.