SYNTHESIS AND REGULATION OF EXTRACELLULAR KERATINASE IN 3 FUNGI ISOLATED FROM THE GROUNDS OF A GELATIN FACTORY, JABALPUR, INDIA

被引:30
作者
MALVIYA, HK
RAJAK, RC
HASIJA, SK
机构
[1] Department of Biological Science, R.D. University, Jabalpur
关键词
FUNGI; KERATINASE; REGULATION; SYNTHESIS;
D O I
10.1007/BF00578494
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Chrysosporium queenslandicum, Graphium penicilloideus and Scopulariopsis 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 in C. queenslandicum and S. 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.
引用
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页码:1 / 4
页数:4
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