Diversity and Metabolic Potential of a PAH-Degrading Bacterial Consortium in Technogenically Contaminated Haplic Chernozem, Southern Russia

Polycyclic aromatic hydrocarbons (PAHs) are chemically recalcitrant carcinogenic and mutagenic compounds with primarily anthropogenic origin. The investigation of the effects emissions from energy enterprises on soil microbiomes is a high priority for modern science. In this study, metagenomic profiling technogenic contaminated soils was carried out based bioinformatic analysis shotgun metagenome data PAH-degrading genes identification. use prokaryotic consortia has been often used as one bio-remediation approaches to degrade PAHs different molecular weight. Since process PAH degradation predominantly includes non-culturable or yet-to-be cultured species, highly recommended studying composition metabolic abilities microbial communities. whole sequencing DNA two varying levels performed. control site, total content 12 262 µg kg?1. background in polluted site 3 more rings exceeded this, at 800 abundance taxa associated these sites were estimated. Despite differences concentrations up 1200 kg?1, individual operon-organized almost equally abundant diverse pristine areas. most numerous both spots actinobacteria Terrabacteria group. addition well-known degraders such Gordonia Rhodococcus, corresponding found Azoarcus, Burkholderia Variovorax. shows non-specificity multifunctionality pathways encoded microorganisms.