Degradation of polychlorinated biphenyl mixtures by the lignin-degrading fungus Phanerochaete chrysosporium
Language English Country United States Media print
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
9569633
DOI
10.1007/bf02815549
Knihovny.cz E-resources
- MeSH
- Aroclors metabolism MeSH
- Basidiomycota metabolism MeSH
- Biodegradation, Environmental MeSH
- Chlorodiphenyl (54% Chlorine) MeSH
- Endopeptidases analysis MeSH
- Environmental Pollutants metabolism MeSH
- Lignin metabolism MeSH
- Peroxidases analysis MeSH
- Polychlorinated Biphenyls metabolism MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- 2,4',5-trichlorobiphenyl MeSH Browser
- Aroclors MeSH
- Chlorodiphenyl (54% Chlorine) MeSH
- Endopeptidases MeSH
- Environmental Pollutants MeSH
- lignin peroxidase MeSH Browser
- Lignin MeSH
- manganese peroxidase MeSH Browser
- Peroxidases MeSH
- Polychlorinated Biphenyls MeSH
Degradation of lower-chlorinated and higher-chlorinated PCB congeners (Delor 103 and Delor 105 as equivalents of Aroclor 1242 and Aroclor 1254, respectively) by the white-rot fungus Phanerochoete chrysosporium was investigated in N-limited and non-limited media. No degradation of either Delor 103 or Delor 105 was found in a N-limited medium 9 d after their addition whereas in the non-limited medium during the same period their levels dropped by 55 and 58%, respectively. The degradation was non-specific and no significant differences in the degradation of di-, tri-, tetra-, penta-, hexa-, and hepta-congeners were found. No activity of Mn-dependent peroxidase (MnP) or lignin peroxidase (LiP) was detectable in the non-limited medium. We assume that the degradation of PCBs by P. chrysosporium is relatively non-specific, takes place under non-limited conditions and is independent of the activities of MnP or LiP.
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