• Title/Summary/Keyword: Kuehneromyces mutabilis

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The physiological characteristics of Kuehneromyces mutabilis. (무리우산버섯의 생리적 특성)

  • 채정기;황태익;서승현;김현석;장경수;문형률;강민아;박병인
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2002.11b
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    • pp.61-61
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    • 2002
  • This study was excuted to decide the physiological characteristics of Kuehneromyces mutabilis. K. mutabilis was tested to select pertinent substract, temperature and pH range for the growth. Mycelial growth of K. mutabilis was mostly supported on MYPA among other tested synthetic or semi-synthetic media. The temperature range for pertinent mycelial growth was about 25~32$^{\circ}C$ and mostly stimulated at $25^{\circ}C$. And the pertinent pH range of MYPA was 5.0~6.0. The required carbon and nitrogen source for mycelial growth of K. mutabilis was tested. The mycelial growth was mostly stimulated by soluble starch at content. The carbon sources for pertinent mycelial growth was mannose or glucose. And the nitrogen source for pertinent mycelial growth was yeast extract or peptone.

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The Effects of Wood Rotting Fungi and Laccase on Destaining of Dyes and KP Bleaching Effluen

  • Cho, Nam-Seok;Park, J.M.;Choi, T.H.;Matuszewska, A.;Jaszek, M.;Grzywnowicz, K.;Malarczyk, E.;Trojanowski, K.;Leonowicz, A.
    • Journal of the Korean Wood Science and Technology
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    • v.27 no.4
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    • pp.72-79
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    • 1999
  • The ability of several wood rotting fungi for decolorization of two anthracene derivatives, Carminic acid (CA) and Remazol brilliant blue R (RBBR), and hardwood KP bleaching liquor (BL) as well as laccase activities in these fungi were studied. The enzyme activity appeared exclusively in fungi destaining RBBR and CA, but in the case of BL, such relationship was not observed. The laccase enzyme was released into the decolorization media and its inducible (but not constitutive) forms shown destaining activity. The purified inducible forms of Kuehneromyces mutabilis and Pleurotus ostreatus laccase destained CA. Thus the possible differentiation between specificity of particular LAC forms was confirmed. In addition the nitrogen starvation induced both laccase and CA destaining activities, but the increase was higher for decolorization of CA than LAC activity. Probably LAC would be only partly responsible for decolorization of this dye. This results suggested that purified LACs decolorize CA, however its destaining activities were considerably lower than the activities on syringaldazine.

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The cultivate characteristics and the wood rotting ability and type of the Kuehneromyces mutabilis Sing. et A. H. Smith (무리우산버섯균의 배양적 특징과 목재부후 특성 파악)

  • Yun, Dae-Ryoung;Chai, Jyung-Ki
    • Journal of Mushroom
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    • v.2 no.4
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    • pp.192-199
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    • 2004
  • The mycelial mass of K. mutabilis greatly increased at pH 5.5~6.0 but decreased pH 6.0. The linear mycelial growth wsa mostly supported on sawdust of Quercus accutisima and the mycelial density wsa high on sawdust of Q. accutisima and corn cob. Much mycelial distribution could be showen in ray parenchyma cell and ray tracheid. Severe degradation of ray parenchyma cell was found but little degradation of ray tracheid cell was found. The dry weight loss wsa 5.9% after agar-block test. And the pH wsa acidified from 6.07 to 4.31 and hot water extractives was decreased after degradation of Q. serrata sawdust by K. mutabilis.

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