title: Biodegradation of polycyclic aromatic hydrocarbons (PAHs) by Cladosporium sphaerospermum isolated from an aged PAH contaminated soil.
abstract: The ability of a Deuteromycete fungus, Cladosporium sphaerospermum, previously isolated from soil of an aged gas manufacturing plant, to degrade polycyclic aromatic hydrocarbons was investigated. This strain was able to degrade PAHs in non-sterile soils (average 23%), including high molecular weight PAHs, after 4 weeks of incubation. In a microcosm experiment, PAH depletion was clearly correlated to fungal establishment. In liquid culture, this strain degraded rapidly benzo(a)pyrene during its early exponential phase of growth (18% after 4 days of incubation). Among extracellular ligninolytic enzyme activities tested, only laccase activity was detected in liquid culture in the absence or in presence of benzo(a)pyrene. C. sphaerospermum might be a potential candidate for an effective bioremediation of aged PAH-contaminated soils.
authors.affiliation: Université du Littoral Côte d'Opale, 50 rue Ferdinand Buisson, BP 699, F-62228 Calais Cédex, France.
authors.forename: Olivier
authors.initials: O
authors.lastname: Potin
authors.forename: Etienne
authors.initials: E
authors.lastname: Veignie
authors.forename: Catherine
authors.initials: C
authors.lastname: Rafin
mesh_terms: D001673:Biodegradation, Environmental; D002963:Cladosporium / Q000502:physiology*; D004787:Environmental Pollution / Q000517:prevention & control; D011084:Polycyclic Aromatic Hydrocarbons / Q000378:metabolism*; D012989:Soil Pollutants / Q000378:metabolism*
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D012989:Soil Pollutants