한국약용작물학회지 (Korean Journal of Medicinal Crop Science)
- 제8권1호
- /
- Pages.41-48
- /
- 2000
- /
- 1225-9306(pISSN)
- /
- 2288-0186(eISSN)
큰용담의 기내증식에서 multiple shoot의 유기
Multiple Shoot Formation of Gentiana axillariflora Leveille by in Vitro Culture
- Lim, Jung-Dae (Division of Applied plant Science, College of Agriculture and Life Science, Kangwon National University) ;
- Yu, Chang-Yeon (Division of Applied plant Science, College of Agriculture and Life Science, Kangwon National University)
- 발행 : 2000.03.31
초록
큰용담을 대상으로 실시한 체세포배의 형성, 재분화 체계의 확립 및 multiple shoot의 형성 등의 대량증식에 관한 일련의 실험의 결과는 다음 몇 가지로 요약된다. 큰용담의 잎절편을 2, 4-D 2 mg/ l 에 배양한 경우 callus 형성율이 90%, embrogenic callus 형성율이 70% 로 높은 형성율을 나타내었으나 실제 형성되는 체세포배의 발생 숫자를 조사하였을 때 2,4-D 단독처리시 보다 2, 4-D 0.5 mg/ l 와 BAP 0.5 mg/ l이 조합처리 시 잎절편체 당 18.8 개의 높은 체세포배가 형성되었다. 큰용담의 줄기와 마디를 배양한 결과 캘러스의 형성은 단독처리시
This study was aimed to proliferate Gentiana axillariflora Leveille which is one of the important medicinal and ornamental plants, by establishment of multiple shoot formation and embryogenesis through tissue culture technique. Callus was formed on MS (Murashige and Skoog) medium supplemented with 2,4-D, CPA, but not formed with BAP. The addition of 2,4-D 2 mg/ l into the medium was effective for callus formation and the rate of callus formation was about 90%. Somatic embryos were obtained on MS medium for two months. When callus was cultured on MS medium with combination treatment of 2,4-D 0.5 mg/ l and BAP 0.5 mg/ l, the number of embryo formed was better than that of other single or combination treatments and the total numbers of embryo a were 18.8 (number of total embryo/number of explants incubated = 753/40) at mean. Callus induction from stem and node explants was increased by addition of TDZ 2 mg/ l in the presence of 2,4-D 2 mg/ l, respectively. The best result about the differentiation of shoots was obtained on MS medium added BAP 2 mg/ l from node culture. Multiple shoots from shoot apex were induced on MS medium containing BAP 1 mg/ I and TDZ 1 mg/ l , BAP 2 mg/ l and TDZ 1 mg/ l. The number of multiple shoots per one explant was above seventy plants. It was the most effective regeneration system for rapid multiplication of Gentiana axillariflora Leveille.