Nitrogen regulation of lignin peroxidase and manganese-dependent peroxidase production is independent of carbon and manganese regulation in Phanerochaete chrysosporium |
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| Authors: | M. W. Van der Woude K. Boominathan C. Adinarayana Reddy |
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| Affiliation: | (1) Department of Microbiology, Michigan State University, 48824-1101 East Lansing, MI, USA;(2) NSF Center for Microbial Ecology, Michigan State University, 48824-1101 East Lansing, MI, USA |
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| Abstract: | In this study, a N-deregulated mutant (der8-5) of Phanerochaete chrysosporium was used as a tool to investigate the interrelationships between N, C, and Mn(II) regulation of LIP and MNP production in this organism. The results showed that LIP and MNP production by der8-5 was blocked in excess C medium but not in excess N medium. Furthermore, LIP and MNP production in this organism was subject to Mn(II) regulation regardless of the fact whether it is grown in low N medium or in high N medium. These and other results indicate that N regulation of LIP and MNP production in P. chrysosporium is independent of C and Mn(II) regulation.Abbreviations LIP lignin peroxidase - MNP manganese-dependent peroxidase - WT wild-type - der8-5 nitrogen-deregulated mutant |
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| Keywords: | Phanerochaete chrysosporium White rot fungus Lignin-degrading fungus Enzyme regulation Lignin peroxidase Manganese-dependent peroxidase Nitrogen-deregulated mutants der Mutants |
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