Open AccessAn anamorph of the white‐rot fungus Bjerkandera adusta capable of colonizing and degrading compact disc components
Author(s) -
Romero Elvira,
Speranza Mariela,
GarcíaGuinea Javier,
Martínez Ángel T.,
Martínez María Jesús
Publication year - 2007
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.2007.00876.x
Subject(s) - fungus , geotrichum , peroxidase , biology , microbiology and biotechnology , botany , chemistry , enzyme , biochemistry
A Geotrichum ‐like fungus isolated from a biodeteriorated compact disc (CD) was able to degrade in vitro the components of different CD types. The fungal hyphae inside the CD fragments grew through the aluminium layer and produced the solubilization of this metal. Furthermore, examination of CDs by scanning electron microscopy showed that the fungus was able to destroy the pits and lands structures grooved in the polycarbonate layer, confirming degradation of this aromatic polymer. The fungus secretes aryl‐alcohol oxidase and Mn 2+ ‐oxidizing peroxidase, two kinds of oxidoreductases characteristic of ligninolytic basidiomycetes. Analysis of the ITS region of ribosomal DNA, as well as the morphological characteristics, the lack of sexual forms and the profile of enzymes secreted in liquid medium identified the fungus as a Geotrichum ‐like anamorph of Bjerkandera adusta (Willd.) P. Karst.