Degradation of organic sulfur compounds by a coal-solubilizing fungus.
Paecilomyces sp. TLi, a coal-solubilizing fungus, was shown to degrade organic sulfur-containing coal substructure compounds. Dibenzothiophene was degraded via a sulfur-oxidizing pathway to 2,2'-dihydroxybiphenyl. No further metabolism of that compound was observed. Ethyl phenyl sulfide and diphenyl sulfide were degraded to the corresponding sulfones. A variety of products were formed from dibenzyl sulfide, presumably via free radical intermediates. Diphenyl disulfide and dibenzyl disulfide were cleaved to the corresponding thiols and other single-ring products. It was concluded that degradation of organic sulfur compounds by Paecilomyces involves an oxidative attack localized at the sulfur atom.
Faison
B D
BD
Oak Ridge National Laboratory, TN 37831-6194.
Clark
T M
TM
Lewis
S N
SN
Ma
C Y
CY
Sharkey
D M
DM
Woodward
C A
CA
D001673:Biodegradation, Environmental; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D003031:Coal; D008401:Gas Chromatography-Mass Spectrometry; D015394:Molecular Structure; D010143:Paecilomyces / Q000378:metabolism*; D013440:Sulfides / Q000378:metabolism*; D013455:Sulfur / Q000378:metabolism*
D003031:Coal; D013440:Sulfides; D013455:Sulfur