Journal of
Yeast and Fungal Research

  • Abbreviation: J. Yeast Fungal Res.
  • Language: English
  • ISSN: 2141-2413
  • DOI: 10.5897/JYFR
  • Start Year: 2010
  • Published Articles: 111

Full Length Research Paper

Benzo[a]pyrene degradation by soil filamentous fungi

M. Cristina Romero1*, M. Inés Urrutia2, H. Enso Reinoso1 and M. Moreno Kiernan3
1Facultad de Ciencias Veterinarias, calle 60 y 119, s/nº, Universidad Nacional de La Plata, 1900 La Plata, Argentina. 2Facultad de Ciencias Agrariasy Forestales, calle 60 y 119, s/nº, Universidad Nacional de La Plata, 1900 La Plata, Argentina. 3Minist. Salud. Prov. B.A., calle 60 y 119, s/nº, Universidad Nacional de La Plata, 1900 La Plata, Argentina.
Email: [email protected]

  • Article Number - 6BA90B32307
  • Vol.1(2), pp. 025-029, March 2010
  •  Accepted: 30 December 2009
  •  Published: 31 March 2010

Abstract

The fungal ability to biotransform xenobiotics had received attention due to their dominance, ubiquity and different pathways that detoxificate aromatic hydrocarbons. The filamentous fungi Aspergillus flavus and Paecilomyces farinosus showed a significant degradation activity on benzo[a]pyrene with and without C16 as cosubstrate. 14CO214C-volatile organic, 14C-extractable, 14C-nonextractable, 14C-biomass and 14C-aqueous fractions were determined with [7, 10]14C-BaP assays, with A. flavus, Cladosporium cladosporioides, Gliocladium viride, P. farinosus and Talaromyces rotundus. However, the activity of A. flavusand P. farinosus were higher. These non-ligninolytic fungi degraded BaP by cometabolism in C16 presence, were adapted to toxicants and dominant in polluted habitats, so they could play an important role in self- bioremediation processes.

 

Key words: Benzo[a]pyrene biodegradation, cometabolism, mycoremediation,PAHs mixture, polluted sites, soil filamentous fungi.

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