Ecotoxicological assessment of PAHs and their dead-end metabolites after degradation by Mycobacterium sp. strain SNP11.
Mycobacterium sp. SNP11 has a high PAH biodegradation potential. In this paper, the toxicity of pyrene, fluoranthene, phenanthrene, and their dead-end metabolites, accumulated in the media after biodegradation by Mycobacterium sp. SNP11, were evaluated by a screening battery of acute, chronic, and genotoxic tests. According to the bioassays, performed on bacteria (Vibrio fischeri, Salmonella typhimurium strains TA1535/pSK1002, TA97a, TA98, TA100), algae (Pseudokirchneriella subcapitata), and crustaceans (Daphnia magna, Ceriodaphnia dubia), total disappearance or a very significant reduction of the (geno)toxic potential was observed after PAH degradation by Mycobacterium sp. SNP11.
Pagnout
Christophe
C
Laboratoire Ecotoxicité, Santé Environnementale, CNRS UMR 7146, Université Paul Verlaine Metz, rue du Général Delestraint, F-57070 Metz, France.
Rast
Claudine
C
Veber
Anne-Marie
AM
Poupin
Pascal
P
Férard
Jean-François
JF
D048908:Aliivibrio fischeri / Q000187:drug effects; D000818:Animals; D001673:Biodegradation, Environmental; D002851:Chromatography, High Pressure Liquid; D003445:Crustacea / Q000187:drug effects; D017753:Ecosystem; D056890:Eukaryota / Q000187:drug effects; D008970:Molecular Weight; D009161:Mycobacterium / Q000254:growth & development*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000493:pharmacokinetics / Q000633:toxicity; D012486:Salmonella typhimurium / Q000187:drug effects; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000032:analysis* / Q000493:pharmacokinetics / Q000633:toxicity
D011084:Polycyclic Aromatic Hydrocarbons; D012989:Soil Pollutants