Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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Proliferation of Embryogenic Callus of Kalopanax pictus through Suspension Culture System

현탁배양을 통한 음나무(Kalopanax pictus) 배발생 캘러스의 증식

  • 김혜진 (농촌진흥청 고령지농업연구소 원예과) ;
  • 김원배 (농촌진흥청 고령지농업연구소 원예과) ;
  • 유동림 (농촌진흥청 고령지농업연구소 원예과) ;
  • 김수정 (농촌진흥청 고령지농업연구소 원예과) ;
  • 이준구 (농촌진흥청 고령지농업연구소 원예과)
  • Published : 2008.02.27
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Abstract

Kalopanax pictus was cultured in vitro to find out optimal condition for embryogenic cells proliferation in liquid media rapidly. Embryogenic cells were induced from leaves and petiols of Kalopanax pictus. Optimum culture medium appeared to be a 1/2MS medium supplemented with 2.0mg/L 2,4-D and 0.1mg/L BA. To find out optimal conditions, embryogenic cells were cultured some condition as different concentrations of 2,4-D, medium and sucrose. There was cultured on 1/2MS liquid medium containing different concentration of 2,4-D. When embryogenic cells were cultured on 1/2MS liquid medium supplemented with 1.0mg/L 2,4-D, cell propagation rate was higher than other concentration of 2,4-D. When embryogenic cells were cultured on different media that MS, Gambols B5, N6, White, SH medium, observed the highest multiplication rate among Gambols B5 and White medium. To find out of effect of sucrose to embryogenic cells propagation, we tested cells under different concentrations. Optimal concentration of sucrose appeared to be a basal medium added 3% sucrose. Above results suggest that optimal conditions for proliferation of embryogenic cells were established Gambols B5 and White medium added 1.0mg/L 2,4-D and 3% sucrose. There is every possibility achieving embryogenic cells proliferation via bioreactor culture system in Kalopanax pictus.

배발생 캘러스 유도 실험을 통해 음나무의 대량 증식의 가능성을 제시하였다. 절편체의 부위 및 호르몬 농도에 따라 약간의 차이는 보였으나 대부분의 조건에서 배발생 캘러스가 유기되었다. 특히 엽병 절편체에 비하여 잎 절편체에서 배발생 캘러스 유기가 더 활발히 이루어졌으며, 2.0mg/l의 2,4-D와 0.1mg/l의 BA를 혼합 처리한 조건에서 가장 많이 유기됨을 확인할 수 있었다. 배발생 캘러스의 대량 증식을 위하여 현탁배양을 실시한 결과 1.0mg/l의 2,4-D를 첨가한 배양액이 증식에 가장 좋은 것으로 나타났으며, 무기염류를 1/2로 반감한 B5 배지와 White 배지가 적당한 것으로 나타났다. 또한 탄소원은 3%의 농도를 사용하였을 때 캘러스 증식 뿐만 아니라 체세포 배의 발아에도 적당한 것으로 나타났다. 따라서 본 실험 결과는 생물반응기를 이용한 음나무의 대량 생산을 가능하게 하는 기초 자료로 이용될 수 있을 것으로 생각된다.

Keywords

References

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