Synthesis and regulation of extracellular keratinase in three fungi isolated from the grounds of a gelatin factory,Jabalpur, India |
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Authors: | H. K. Malviya R. C. Rajak S. K. Hasija |
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Affiliation: | (1) Department of Biological Science, R.D. University, 482 001 Jabalpur, India |
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Abstract: | Chrysosporium queenslandicum, Graphium penicilloideus andScopulariopsis brevicaulis were grown on various supplemented basal salts media to compare keratinase induction, activity and repression. All three fungi can utilize keratin as a sole source of carbon, nitrogen and sulfur. Total keratinase activity inC. queenslandicum andS. brevicaulis, was not repressed by supplementation of keratin-containing medium with glucose, ammonium or sulfate. The production of keratinase activity was not derepressible in keratin-free media. Keratin utilization commenced before the detection of significant extracellular keratinase activity which was always associated with mycelial growth. |
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Keywords: | Fungi keratinase regulation synthesis |
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