Oxidation of chlorinated dibenzo-p-dioxin and dibenzofuran by white-rot fungus, Phlebia lindtneri.
The actions of a white-rot fungus on two chlorinated aromatic compounds, known to be persistent environmental contaminants, were studied. Two models, both-ring chlorinated dioxin, 2,7-dichlorodibenzo-p-dioxin (2,7-diCDD) and 2,8-dichlorodibenzofuran (2,8-diCDF), were metabolized by the white-rot fungus Phlebia lindtneri. 2,7-DiCDD disappeared linearly in the culture of P. lindtneri; over a 20-day incubation period, with only 45% remaining in the culture. One of the metabolites produced by P. lindtneri from a 5-day incubated culture with 2,7-diCDD or 2,8-diCDF was identified by gas chromatography-mass spectrometry. P. lindtneri was shown to metabolize 2,7-diCDD and 2,8-diCDF to hydroxy-diCDD and hydroxy-diCDF, respectively.
Mori
Toshio
T
Department of Forest and Forest Products Sciences, Faculty of Agriculture, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
Kondo
Ryuichiro
R
D001487:Basidiomycota / Q000378:metabolism*; D001572:Benzofurans / Q000378:metabolism*; D001673:Biodegradation, Environmental; D002849:Chromatography, Gas; D004147:Dioxins / Q000378:metabolism*; D004785:Environmental Pollutants / Q000378:metabolism; D006900:Hydroxylation; D013058:Mass Spectrometry; D010084:Oxidation-Reduction; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives / Q000737:chemistry / Q000378:metabolism
D001572:Benzofurans; D004147:Dioxins; D004785:Environmental Pollutants; D000072317:Polychlorinated Dibenzodioxins; C023614:dibenzofuran; C020887:dibenzo(1,4)dioxin