Effect of Plant Regulators on Direct Shoot Formation and Bulblet Formation from Flower Stalk Culture of Muscari armeniacum 'Early Giant'

무스카리(Muscari armeniacum 'Early Giant')의 화경 조직으로부터 신초형성과 구형성에 미치는 생장조절물질의 영향

  • Jeon, Su-Min (Department of Horticultural Science, Kyungpook National University) ;
  • Chung, Mi-Young (Department of Horticultural Science, Kyungpook National University) ;
  • Kim, Chang-Kil (Department of Horticultural Science, Kyungpook National University)
  • Received : 2011.11.20
  • Accepted : 2011.12.21
  • Published : 2011.12.31

Abstract

This study was carried out to produce multiple shoots and bulblets from flower stalk tissue cultures of Muscari armeniacum LEICHTLIN ex BAKER 'Early Giant', which were cultured in the half strength Murashige & Skoog's (MS) medium supplemented with auxin, NAA in combination with kinetin, BA, and TDZ, alone and/or. In flower stalk tissue culture, upper part explant was the most suitable as a source of culture material. Direct shoot formation was much more favorable in half strength MS medium supplemented with $0.1mg{\cdot}L^{-1}$ NAA and $1.0mg{\cdot}L^{-1}$ TDZ. On the other hand, bulblet formation was increased when cultured in half strength MS medium added with $0.01mg{\cdot}L^{-1}$ NAA and $0.1mg{\cdot}L^{-1}$, $0.2mg{\cdot}L^{-1}$ kinetin. Acclimatized plant flowered during the second year of the growing period without any phenotypic variations and formed average 1.5 bulblets per mother bulb.

화경을 상, 중, 하부로 나누어 신초 및 자구를 유도하기 위하여 NAA와 몇 종류의 cytokinin 첨가 배지에서 각 부위별 화경 절편체를 배양해서 얻은 결과는 다음과 같다. 화경 조직에서 상부, 중부, 하부 중 소화경이 부착된 상부조직에서 다아체 및 자구 형성이 전반적으로 가장 양호 하였다. 다아체 형성은 NAA $0.1mg{\cdot}L^{-1}$와 TDZ $1.0mg{\cdot}L^{-1}$ 혼용배지에서 가장 효율적이었고 자구 형성은 NAA $0.01mg{\cdot}L^{-1}$와 kinetin $0.1mg{\cdot}L^{-1}$ 또는 NAA $0.01mg{\cdot}L^{-1}$와 kinetin $0.2mg{\cdot}L^{-1}$ 혼용배지에서 가장 효율적이었다. 온실에서 순화된 식물체는 정상적으로 개화하였으며 재식 2년차에 1.5개 내외의 자구를 가진 구를 생산할 수 있었다.

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