Changes in phenol oxidases and superoxide dismutase during fruit-body formation of Pleurotus on sawdust culture |
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| Institution: | 1. Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr el Aini St., P.B. 11562, Cairo, Egypt;2. Pharmacognosy Department, Faculty of Pharmacy, Mansoura University, Egypt;1. Department of Biochemistry and Microbiology, University of Chemistry and Technology, Prague, Technická 3, CZ-166 28 Prague, Czech Republic;2. Institute of Molecular Genetics, v.v.i., Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague 4, Czech Republic;3. Institute of Microbiology, v.v.i., Academy of Sciences of the Czech Republic, Vídeňská 1083, CZ-142 20 Prague 4, Czech Republic;1. Department of Biochemistry and Microbiology, University of Chemistry and Technology, Prague, Technická 3, 166 28 Prague 6, Czech Republic;2. Institute of Geology of the Czech Academy of Sciences, Rozvojová 269, 165 00 Prague 6, Czech Republic;3. Nuclear Physics Institute of the Czech Academy of Sciences, Hlavní 130, 250 68 Husinec-?e?, Czech Republic;1. Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, South Korea;2. Department of Food Science and Engineering, Ewha Womans University, Seoul 120-750, South Korea |
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| Abstract: | Peroxidase and laccase activities increased rapidly up to the formation of primordia and then declined throughout the entire stage of fruiting. In the case of Pleurotus ostreatus, the level of Mn-dependent peroxidase was very low in primordia and fruiting stages but gradually increased with the growth of the fruit-body, whereas no activity was detected in Pleurotus sajor-caju during all growth stages. Superoxide dismutase activity was observed mainly at the fruiting stages. These results show that changes in concentration of lignin-related enzymes are associated with the fruiting process. |
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| Keywords: | Fruit-body Lignin-degrading enzymes Phenol oxidase Superoxide dismutase |
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