Abstract
The growth abilities of fifteen fungal strains isolated fromcontaminated areas, in the presence of xenobiotics compounds mixture (overworked cuttingfluid, crude and waste oil) were examined. Strains with the richest growth were chosen for anthracene, phenanthrene and pentachlorophenol biodegradation in Sabouraudmedium (with initial xenobiotic concentration 250 mg/l in cultures with polycyclicaromatic hydrocarbons and 10 mg/l for the chlorinated substrate). Strains IM 1063and IM 6325 were able to attack phenanthrene forming its derivative 9-phenanthrenolwith the yields 5.22 mg/l and 2.82 mg/l, respectively. Strain IM 1063 and IM 6325 transformed pentachlorophenol to an intermediatecompound – pentachloromethoxybenzene. Final content of pentachloromethoxybenzene reached 3.46 mg/l and3.2 mg/l, respectively. Strain IM 6203 (contrary to other strains) released an intermediateproduct of pentachlorophenol metabolism – 2,3,5,6-tetrachlorohydroquinone(8.73 mg/l substrate remaining and 1.2 mg/l 2,3,5,6-tetrachlorohydroquinone forming).The IM 6203 strain was identified as Mucor ramosissimus. The chlorinatedpesticide degradation by M. ramossimus was improved significantly on a medium with overworked oil. Only 8.3% of pentachlorophenol and 4.3% of 2,3,5,6-tetrachlorohydroquinone in relation to the introduced substrate (10 mg/l) were found, after7 days of incubation. The growth of M. ramosissimus on medium with overworked oil in pentachlorophenol presence was associated with oil emulgation,which enhanced fungal growth and the pesticide degradation.
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Szewczyk, R., Bernat, P., Milczarek, K. et al. Application of Microscopic Fungi Isolated from Polluted Industrial Areas for Polycyclic Aromatic Hydrocarbons and Pentachlorophenol Reduction. Biodegradation 14, 1–8 (2003). https://doi.org/10.1023/A:1023522828660
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DOI: https://doi.org/10.1023/A:1023522828660