Decolorization and degradation of xanthene dyes by a white rot fungus, Coriolus versicolor.
The decolorization of six xanthene dyes (conc. 100 microM) by a white rot fungus, Coriolus versicolor (C. versicolor), was investigated in liquid culture. The decolorization of Fluorescein, 4-Aminofluorescein, and 5-Aminofluorescein by the fungus was 85.0, 95.0, and 91.9% after 14 days incubation, respectively. However, no decolorization of Rhodamine B, Rhodamine 123 hydrate, and Rhodamine 6G was observed. The first three dyes also were decolorized with cell-free extracts from C. versicolor. The decolorization activity was 10.2, 6.7, and 7.2 microM min(-1)mg(-1), respectively. Thin layer chromatography (TLC) analyses indicated that degradation of Fluorescein was occurring with the detection of three degradation products.
Nagoya Municipal Industrial Research Institute, Atsuta-ku, Nagoya, Japan. kitoh@nmiri.city.nagoya.jp
Kiyoharu
K
Itoh
Chizuko
C
Yatome
D001487:Basidiomycota / Q000502:physiology*; D002855:Chromatography, Thin Layer; D004396:Coloring Agents / Q000378:metabolism*; D012989:Soil Pollutants / Q000378:metabolism*; D014970:Xanthines / Q000378:metabolism*
D004396:Coloring Agents; D012989:Soil Pollutants; D014970:Xanthines