Screening for fungi intensively mineralizing 2,4,6-trinitrotoluene

Abstract

Within a screening program, 91 fungal strains belonging to 32 genera of different ecological and taxonomic groups (wood- and litter-decaying basidiomycetes, saprophytic micromycetes) were tested for their ability to metabolize and mineralize 2,4,6-trinitrotoluene (TNT). All these strains metabolized TNT rapidly by forming monoaminodinitrotoluenes (AmDNT). Micromycetes produced higher amounts of AmDNT than did wood- and litter-decaying basidiomycetes. A significant mineralization of [14C]TNT was only observed for certain wood- and litter-decaying basidiomycetes. The most active strains, Clitocybula dusenii TMb12 and Stropharia rugosa-annulata DSM11372 mineralized 42 % and 36 % respectively of the initial added [14C]TNT (100 μM corresponding to 4.75 μCi/l) to 14CO2 within 64 days. Micromycetes (deuteromycetes, ascomycetes, zygomycetes) proved to be unable to mineralize [14C]TNT significantly.

DOI: 10.1007/s002530051075

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@article{Scheibner1997ScreeningFF, title={Screening for fungi intensively mineralizing 2,4,6-trinitrotoluene}, author={K. Scheibner and M. Hofrichter and A. Herre and J. Michels and W. Fritsche}, journal={Applied Microbiology and Biotechnology}, year={1997}, volume={48}, pages={431-431} }