The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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The Characteristics of Cultural Conditions for the Mycelial Growth and Fruiting Body Formation of Paecilomyces sinclairii

매미눈꽃동충하초(Paecilomyces sinclairii)의 균사 생장과 자실체 형성 조건의 특성

  • Published : 2003.04.30
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Abstract

The fruiting body of Paecilomyces sinclairii was collected in Baekyangsa, Jeollanam-Do, Korea. Cultural conditions for the mycelial growth and fruiting body formation were investigated. Its optimum mycelial growth was obtained at 25℃ and pH 8 on potato dextrose agar and Hamada media among the various media tested. The carbon and nitrogen sources for the optimum mycelial growth were dextrin and glutamine, respectively. The optimum C/N ratio was about 20:1 in case that 1% glucose was supplemented to the basal medium as a carbon source. The favorable mycelial growth was obtained from corn meal extract medium mixed with 30% (w/v) milk solution. The maximum fruiting body was formed in unpolished rice medium supplemented with 20% (w/w) silkworm pupae at $25^{\circ}C$ under 500lux.

매미누꽃동충하초(Paecilomyces sinclairii)를 전라남도 백양사의 인근 숲에서 채집하여 균주를 순수 분리하고 균사의 최적 배양조건과 특성을 조사하였다. 균사생장에 적합한 pH는 $5{\sim}9$의 범위였으며 pH 8에서 가장 왕성한 균사생장을 보였고, 온도는 $25{\circ}C$가 적합하였다. 균사생장에 가장 적합한 배지는 Hamada 배지였으며 탄소 영양원은 dextrin, 질소 영양원은 glutamine인 것으로 조사되었다. 균사의 생장은 C/N비가 20:1일 때, 옥수수추출물과 우유가 혼합한 배지에서 가장 양호하였다. 자실체는 20%의 누에번데기가 첨가된 현미배지에서 500lux, $25{\circ}C$의 조건으로 배양할 때 가장 자실체 형성이 우수하였다.

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References

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