Relationships between ligninolytic activities of Lentinula spp. and biotransformation of pentachlorophenol in sterile soil |
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| Authors: | BC Okeke A Paterson JE Smith Irene A Watson-Craik |
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| Institution: | Department of Bioscience and Biotechnology, University of Strathclyde, Glasgow, UK |
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| Abstract: | Ligninolytic activities in strains of Lentinula edodes were related to pentachlorophenol biotransformation in sterile soil and activities in L. lepideus. Strains of L. edodes secreting laccase and manganese peroxidase activities also metabolized pentachlorophenol (PCP) significantly ( P < 0.05). Strains of L. lepideus showed neither enzymic activities nor xenobiotic breakdown. Lentinula edodes strains inhibited by PCP at 5 mg 1-1 in agar, tolerated 200 mg kg-1 in soil. Strain LE2 metabolized more PCP in nitrogen-sufficient than nitrogen-limited culture: the reverse was observed with Phanerochaete chrysosporium BKM 1767. Relationships between ligninolytic activities and pentachlorophenol breakdown in L. edodes indicated a suitability for soil bioremediation treatments. |
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