Screening and metabolic potential of fungal strains isolated from contaminated soil and sediment in the polychlorinated biphenyl degradation

Polychlorinated biphenyls (PCBs) are widespread persistent pollutants deleterious for environment and very dangerous human kind. As the bioremediation of PCB polluted sites by model white-rot fungi is still unsatisfactory, use efficient native strains which have natural capacity to develop on may constitute a relevant alternative strategy. In this study, we isolated 12 fungal from contaminated soil sediment, improved screening method obtain most ones in biodegradation detoxification PCBs characterized potential underlying enzymatic activities. Four Penicillium chrysogenum, P. citreosulfuratum, canescens Aspergillus jensenii, showed remarkable capacities, greater than 70%. The remaining PCB-toxicity their culture, including that Trametes versicolor Acremonium sclerotigenum, present interesting ecological metabolic properties, was studied. Only able significantly reduce toxicity related metabolites. activities induced were different according strains, namely laccases T. peroxidases Ac. sclerotigenum. Our promising results show can an effective strategy depollution sites.