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

Autor: Marie-Noëlle Binet, Muriel Raveton, Joaquim Germain, Bello Mouhamadou
Přispěvatelé: Laboratoire d'Ecologie Alpine (LECA ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)
Rok vydání: 2020
Předmět:
Enzymatic activities
Health
Toxicology and Mutagenesis
[SDV]Life Sciences [q-bio]
010501 environmental sciences
01 natural sciences
Environmental pollution
Fungal Proteins
03 medical and health sciences
chemistry.chemical_compound
Bioremediation
Humans
Soil Pollutants
GE1-350
Soil Microbiology
030304 developmental biology
0105 earth and related environmental sciences
Trametes versicolor
Laccase
0303 health sciences
biology
Toxicity
Chemistry
Public Health
Environmental and Occupational Health
Fungi
Polychlorinated biphenyl
food and beverages
General Medicine
15. Life on land
Biodegradation
biology.organism_classification
Penicillium chrysogenum
Pollution
Soil contamination
Polychlorinated Biphenyls
Environmental sciences
Native fungal strains
biodegradation
Biodegradation
Environmental
TD172-193.5
Peroxidases
13. Climate action
Environmental chemistry
Aspergillus jensenii
Zdroj: Ecotoxicology and Environmental Safety, Vol 208, Iss, Pp 111703-(2021)
Ecotoxicology and Environmental Safety
Ecotoxicology and Environmental Safety, Elsevier, 2021, 208, pp.111703-. ⟨10.1016/j.ecoenv.2020.111703⟩
ISSN: 1090-2414
0147-6513
DOI: 10.1016/j.ecoenv.2020.111703⟩
Popis: Polychlorinated biphenyls (PCBs) are widespread persistent pollutants deleterious for environment and very dangerous for human kind. As the bioremediation of PCB polluted sites by model white-rot fungi is still unsatisfactory, the use of efficient native strains which have the natural capacity to develop on polluted sites may constitute a relevant alternative strategy. In this study, we isolated 12 fungal strains from PCB contaminated soil and sediment, improved the screening method to obtain the most efficient ones in biodegradation and detoxification of PCBs and characterized potential underlying enzymatic activities. Four strains Penicillium chrysogenum, P. citreosulfuratum, P. canescens and Aspergillus jensenii, showed remarkable biodegradation capacities, greater than 70%. The remaining PCB-toxicity of their culture, including that of Trametes versicolor and Acremonium sclerotigenum, which present interesting ecological and metabolic properties, was studied. Only P. canescens was able to significantly reduce the toxicity related to PCBs and their metabolites. The enzymatic activities induced by PCBs were different according to the strains, namely laccases in T. versicolor and peroxidases in Ac. sclerotigenum. Our promising results show that the use of native fungal strains can constitute an effective strategy in the depollution of PCB polluted sites.
Databáze: OpenAIRE
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