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KMID : 0379120000280020097
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Korean Journal of Mycology
2000 Volume.28 No. 2 p.97 ~ p.102
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The Characteristics of Thermophilic Fungi in Relation to Growth - Promoting Effect on the Mycelium of Pleurotus ostreatus
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Lee Young-Keun
Hyun Sung-Hee
Kim Jun-Ho
Min Bong-Hee
Lee Ho-Yong
Kim Won-Rok
Song In-Geun
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Abstract
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The mycelial growth of Pleurotus ostreatus in compost is strongly stimulated by solid-state fermentation with thermophilic fungi which were isolated from oyster mushroom compost. The biochemical characteristics of these thermophilic fungi were investigated. Cellulase and ligninase activities were not detected by clear zone effect on CMC and lignin media. All of thermophilic fungi grew well with high mycelial density on xylan media and the growing rate of Sepedonium sp. S-2 observed very high. In results of MUF-test, extracellular enzyme activity of Sepedonium sp. S-2, and S-5 measured very high. On the compost after high temperature fermentation with Sepedonium sp. S-2 and S-5, the mycelial growing rate of Pleurotus ostreatus was increased about 50% and it also showed the inhibiting effect on mycelial growth of Trichoderma sp. SJG-51. Isolated thermophilic fungi, Sepedonium sp. S-2 and S-5 were expected as very useful organism for making oyster mushroom compost.
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KEYWORD
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Enzyme activity, Growth-promoting, Oyster mushroom, Pleurotus ostreatus, Sepedonium sp., Thermophilic fungi
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