Long-Term Cold Storage and Plant Regeneration of Suspension Cultured Somatic Embryos of Eleutherococcus senticosus Maxim

가시오갈피 현탁배양 체세포배의 저온장기저장 및 식물체 재분화

  • Li, Cheng Hao (Forest Genetics and Tree Breeding Lab., College of Foresry, Mortheast Forestry Uni.) ;
  • Lim, Jung-Dae (Division of Applied Plant Sci., Kangwon Natl. Univ.) ;
  • Heo, Kwon (Division of Applied Plant Sci., Kangwon Natl. Univ.) ;
  • Kim, Myong-Jo (Division of Applied Plant Sci., Kangwon Natl. Univ.) ;
  • Lee, Chan-Ok (Division of Applied Plant Sci., Kangwon Natl. Univ.) ;
  • Lee, Jae-Geun (Division of Applied Plant Sci., Kangwon Natl. Univ.) ;
  • Cui, Xue Shu (Division of Applied Plant Sci., Kangwon Natl. Univ.) ;
  • Yu, Chang-Yeon (Division of Applied Plant Sci., Kangwon Natl. Univ.)
  • 이성호 (동북임업대학 임학원, 임목유전육종실험실) ;
  • 임정대 (강원대학교 농업생명과학대학 식물응용과학부) ;
  • 허권 (강원대학교 농업생명과학대학 식물응용과학부) ;
  • 김명조 (강원대학교 농업생명과학대학 식물응용과학부) ;
  • 이찬옥 (강원대학교 농업생명과학대학 식물응용과학부) ;
  • 이재근 (강원대학교 농업생명과학대학 식물응용과학부) ;
  • 최학숙 (강원대학교 농업생명과학대학 식물응용과학부) ;
  • 유창연 (강원대학교 농업생명과학대학 식물응용과학부)
  • Published : 2004.12.31

Abstract

A method for long-term conservation of somatic embryos of Eleutherococcus senticosos was described. Suspension cultured globular somatic embryos were successfully conservated for 36 months at $4^{\circ}C$. The embryos resumed growth within two weeks when returned to MS liquid medium containing $0.2\;mg/{\ell}$. 2,4-dichlorophenoxy acetic acid. The optimal condition for cell proliferation was achieved when somatic embryos cultured at $32^{\circ}C$ in 1/3 MS liquid medium, and about 1.2 g of embryogenic cell was induced from 150 globular embryos after 6 weeks of suspension culture. The embryogenic cells produced from these somatic embryos exhibited normal plant regeneration on auxin-free medium.

체세포배발생을 이용한 가시오갈피 대량증식체계 확립을 위하여 저온처리에 의한 체세포배의 장기저장 실험을 수행하였다. 현탁배양 체세포배의 $4^{\circ}C$에서의 저온저장에는 구형배 이전의 조기단계의 체세포배가 적합하였고 $2\;g/{\ell}$ 이하의 낮은 접종밀도에서는 36개월 이상 저장이 가능하였다. 장기간 저온 저장한 체세포배는 상온에 옮긴 후 2,4-D를 첨가한 배지에서만 성장을 회복하여 배발생캘러스를 형성하였으며 배발생캘러스의 증식속도는 배양온도를 $32^{\circ}C$로 높였을 때에 가장 효율적이였다.

Keywords

References

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