Degradation of polychlorinated biphenyl mixtures by the lignin-degrading fungus Phanerochaete chrysosporium
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
9569633
DOI
10.1007/bf02815549
Knihovny.cz E-zdroje
- MeSH
- arochlory metabolismus MeSH
- Basidiomycota metabolismus MeSH
- biodegradace MeSH
- chlordifenyl (54% chloru) MeSH
- endopeptidasy analýza MeSH
- látky znečišťující životní prostředí metabolismus MeSH
- lignin metabolismus MeSH
- peroxidasy analýza MeSH
- polychlorované bifenyly metabolismus MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- 2,4',5-trichlorobiphenyl MeSH Prohlížeč
- arochlory MeSH
- chlordifenyl (54% chloru) MeSH
- endopeptidasy MeSH
- látky znečišťující životní prostředí MeSH
- lignin peroxidase MeSH Prohlížeč
- lignin MeSH
- manganese peroxidase MeSH Prohlížeč
- peroxidasy MeSH
- polychlorované bifenyly 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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