Degradative properties of two newly isolated strains of the ascomycetes Fusarium oxysporum and Lecanicillium aphanocladii
Int. microbiol
; 22(1): 103-110, mar. 2019. graf, tab
Artigo
em Inglês
| IBECS
| ID: ibc-184818
Biblioteca responsável:
ES1.1
Localização: BNCS
ABSTRACT
Two ascomycete strains were isolated from creosote-contaminated railway sleeper wood. By using a polyphasic approach combining morpho-physiological observations of colonies with molecular tools, the strains were identified as Fusarium oxysporum Schltdl. (IBPPM 543, MUT 4558; GenBank accession no. MG593980) and Lecanicillium aphanocladii Zare & W. Gams (IBPPM 542, MUT 242; GenBank accession no. MG593981). Both strains degraded hazardous pollutants, including polycyclic aromatic hydrocarbons, anthraquinone-type dyes, and oil. Oil was better degraded by F. oxysporum, but the aromatic compounds were better degraded by L. aphanocladii. With both strains, the degradation products of anthracene, phenanthrene, and fluorene were 9,10-anthraquinone, 9,10-phenanthrenequinone, and 9-fluorenone, respectively. During pollutant degradation, F. oxysporum and L. aphanocladii produced an emulsifying compound(s). Both fungi produced extracellular Mn-peroxidases, enzymes possibly involved in the fungal degradation of the pollutants. This is the first report on the ability of L. aphanocladii to degrade four-ring PAHs, anthraquinone-type dyes, and oil, with the simultaneous production of an extracellular Mn-peroxidase
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Bases de dados nacionais
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Espanha
Base de dados:
IBECS
Assunto principal:
Ascomicetos
/
Madeira
/
Óleos
/
Microbiologia Ambiental
/
Poluentes Ambientais
/
Hypocreales
Idioma:
Inglês
Revista:
Int. microbiol
Ano de publicação:
2019
Tipo de documento:
Artigo
Instituição/País de afiliação:
Russian Academy of Sciences/Russia
/
University of Turin/Italy