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Effect of Medium Components and Culture Methods on Shoots Regeneration from Athyrium niponicum

개고사리의 기내 포자체 재생에 미치는 배지구성물질 및 배양방법의 영향

  • Shin, So-Lim (Department of Horticultural Science, Chungbuk National University) ;
  • Lee, Cheol-Hee (Department of Horticultural Science, Chungbuk National University)
  • 신소림 (충북대학교 응용생명환경학부 원예과학과) ;
  • 이철희 (충북대학교 응용생명환경학부 원예과학과)
  • Received : 2010.08.24
  • Accepted : 2010.12.09
  • Published : 2011.04.30

Abstract

Present studies are carried out to find media components and culture methods for in vitro propagation of Athyrium niponicum and to establish the optimal economic masspropagation systems. Among pinnae, petiole and rhizome segments only rhizome segments produced young plants. Rhizome segments showed vigorous plant regeneration on 1/2MS medium and supplement to 1% sucrose and 50 $mg{\cdot}L^{-1}$ $NaH_2PO_4$ were promoted the plant regeneration from rhizome segments. Kinetin was better than BA for plant regeneration and combination with 2 ${\mu}M$ kinetin and 5 ${\mu}M$ IBA was most efficient for plant regeneration. Solid or liquid medium with or without 0.1% qactivated charcoal in modified 1/2MS medium (1% sucrose, 50 $mg{\cdot}L^{-1}$ $NaH_2PO_4$, 2 ${\mu}M$ kinetin, 5 ${\mu}M$ IBA, pH 5.8) were used to find the optimal culture methods. The plant regeneration from rhizome segments were most vigorous on solid medium without activated charcoal. The addition of activated charcoal were inhibited the plant regeneration from rhizome segments not only on solid medium but also liquid stationary or suspension culture.

본 연구는 개고사리의 기내 조직배양 시 적정 배지구성 물질과 배양방법을 구명하여 효율적인 대량생산체계를 구축하기 위하여 시행하였다. 개고사리의 엽신, 엽병 및 근경의 절편 중 근경의 절편에서만 포자체가 분화되었다. 근경의 절편으로부터 포자체의 재생을 촉진시키기 위해서는 1/2MS 배지가 가장 적합하였으며, 배지 내 sucrose는 1%, $NaH_2PO_4$는 50 $mg{\cdot}L^{-1}$으로 첨가하는 것이 가장 효과적이었다. 생장조절물질은 BA보다 kinetine을 첨가하는 것이 포자체의 분화를 촉진하는데 적합하였으며, kinetin 2 ${\mu}M$와 IBA 5 ${\mu}M$를 혼용하여 첨가하는 것이 근경의 절편으로부터 포자체를 형성하는데 가장 효과적이었다. 포자체 형성에 가장 효과적인 것으로 나타난 변형 1/2MS배지(sucrose는 1%, $NaH_2PO_4$는 50 $mg{\cdot}L^{-1}$, kinetin 2 ${\mu}M$와 IBA 5 ${\mu}M$, pH 5.8)에 활성탄을 0 또는 0.1% 첨가하여 고체 또는 액체배지에서 배양한 결과, 개고사리 근경의 절편은 고체배지에서 포자체의 재생 및 생육이 가장 우수하였다. 배지에 활성탄을 첨가하는 것은 고체, 액체 정치 및 액체 현탁배양 모두에서 근경절편의 포자체 분화를 억제하였다.

Keywords

References

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