Journal of Mushroom (한국버섯학회지)

The Korean Society of Mushroom Science (한국버섯학회)
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Varietal characteristics of cross-bred Cordyceps militaris 'Dowonhongcho'

교배육종에 의한 밀리타리스 동충하초 '도원홍초'의 품종특성

  • Lee, Byung-joo (Crop Research Division, Chungcheongnam-do Agricultural Research & Extension Services) ;
  • Lee, Mi-Ae (Crop Research Division, Chungcheongnam-do Agricultural Research & Extension Services) ;
  • Kim, Yong-Gyun (Crop Research Division, Chungcheongnam-do Agricultural Research & Extension Services) ;
  • Lee, Kwang-won (Crop Research Division, Chungcheongnam-do Agricultural Research & Extension Services) ;
  • Choi, Young-sang (Yedang Mushroom Institute) ;
  • Lee, Byung-eui (Department of Chemistry, College of Natural Science, Soonchunghyang University)
  • 이병주 (충청남도농업기술원 작물연구과) ;
  • 이미애 (충청남도농업기술원 작물연구과) ;
  • 김용균 (충청남도농업기술원 작물연구과) ;
  • 이광원 (충청남도농업기술원 작물연구과) ;
  • 최영상 (예당버섯) ;
  • 이병의 (순천향대학교 화학과)
  • Received : 2015.07.27
  • Accepted : 2015.08.07
  • Published : 2015.09.30
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Abstract

Cordyceps militaris is being studied and cultivated as a medicinal mushroom having many valuable biological and pharmaceutical activities. In the breeding of new C. militaris mushroom, single ascospores were isolated and examined their mycelial growth, mycelial density, and production of stroma and perithecia. Among them selected isolates were crossed and hybrids were produced showing high quality fruiting bodies on artificial media. Mycelial growth rate of new strain 'Dowonhongcho' was higher than that of better on 'Yedang 3' on SDAY at $10-25^{\circ}C$. The stromata of new strain were club-shaped and bright orange-red. Its height was 6.1 cm and the cordycepin content was 0.34% on average. The new strain showed 9% higher yield than 'Yedang 3' with producing firmer fruit bodies. The optimum temperature for mycelial growth was $22{\sim}25^{\circ}C$ and the optimum temperature for stroma development was $18{\sim}22^{\circ}C$. Fruiting bodies were began to produce 45 days later after inoculation. This new cultivar may serve as a valuable one for artificial cultivation and industrial-scale production of C. militaris.

밀리타리스 동충하초는 다양한 생리적 및 약리적 가치를 가지고 있는 약용버섯으로 인정받으며 많은 연구가 있어왔다. 교배를 위해 자낭포자를 분리한 후 균사생장, 균사밀도, 자실체 및 자낭각 형성 여부 등에 대한 검토를 하였고, 그 중에서 우수한 특성의 균주를 이용하여 교배와 선발과정을 거쳐 신품종 '도원홍초'를 육성하였다. 신품종 '도원홍초'는 SDAY배지 및 $10{\sim}25^{\circ}C$ 온도조건에서 균사 생장이 양호하였다. 신품종의 자실체는 곤봉형이고 밝은 주황색을 띠었으며 코디세핀 함량은 0.34% 였고 자좌의 평균길이는 6.1 cm였다. '예당 3호'와 비교할 때, 새로운 품종 '도원홍초'의 수량은 9% 증수되었고 자실체의 경도가 높은 특징을 보였다. 균사생장 적온은 $22{\sim}25^{\circ}C$였고, 버섯 발생 적온은 $18{\sim}22^{\circ}C$였으며 접종에서부터 자실체 발생까지의 기간은 45일이 소요되었다. 신품종 '도원홍초'는 동충하초 인공재배 및 산업적 생산에 기여할 것으로 판단된다.

Keywords

References

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