Mycobiology

  • 제34권2호
  • /
  • Pages.83-91
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  • 2006
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  • 1229-8093(pISSN)
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  • 2092-9323(eISSN)
한국균학회 (The Korean Society of Mycology)
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Observations on Some of the Mycelial Growth and Pigmentation Characteristics of Cordyceps militaris Isolates

  • Shrestha, Bhushan (Green Energy Mission/Nepal, Anam Nagar, Kathmandu) ;
  • Lee, Won-Ho (Entomopathogenic Fungal Culture Collection (EFCC), Department of Applied Biology, Kangwon National University) ;
  • Han, Sang-Kuk (Entomopathogenic Fungal Culture Collection (EFCC), Department of Applied Biology, Kangwon National University) ;
  • Sung, Jae-Mo (Entomopathogenic Fungal Culture Collection (EFCC), Department of Applied Biology, Kangwon National University)
  • 발행 : 2006.06.30
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초록

Characteristic growth patterns of Cordyceps militaris isolates on various media, under varying light conditions and at varying incubation periods were examined. Light was found to be the most critical single factor in determining the density, texture, and pigmentation of the mycelial culture of the fungus. However, under the light condition, the degree of pigmentation and mycelial density were found to be affected by the incubation period and type of medium. Irrespective of the variations in medium type or incubation period, there was no pigmentation of the mycelium under dark condition. Radial growth of the mycelium was faster under dark incubation rather than under light incubation. Abundant mycelial density and darkest pigmentation of C. militaris isolates were produced in nutritionally rich media like SDAY, SMAY and CZYA, suggesting that these media may fulfill all the requirements for vegetative growth of the fungus. Growth characteristics of C. militaris isolates could be easily observed by the simple agar culture method, which would be useful to characterize the phenotypic characteristics of large number of pure cultures of the fungus under given conditions of growth factors such as medium, light and temperature.

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