Journal of Plant Biotechnology

  • 제31권2호
  • /
  • Pages.139-143
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  • 2004
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  • 1229-2818(pISSN)
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  • 2384-1397(eISSN)
한국식물생명공학회 (The Korean Society of Plant Biotechnology)
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네리네(Nerine bowdenii)의 기내 인편배양시 자구형성에 미치는 생장조절제와 Sucrose 농도의 영향

Effects of Growth Regulators and Sucrose Concentrations on the Bulblet Formation through In Vitro Culture of Scale Segment in Nerine bowdenii

  • 이승엽 (원광대학교 식물자원과학부 생명자원과학연구소) ;
  • 안정호 (원광대학교 식물자원과학부 생명자원과학연구소) ;
  • 박윤점 (원광대학교 식물자원과학부 생명자원과학연구소)
  • 발행 : 2004.06.01
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초록

네리네의 인편 배양에 의한 기내 증식을 위하여, 쌍인편으로부터 자구형성에 미치는 NAA와 BA 및 sucrose 농도의 영향을 조사하였다. 네리네의 쌍인편으로부터 기내 자구형성에 가장 적합한 배지는 1.0mg/L NAA와 2.0mg/L BA를 첨가한 MS배지였다. 적정 sucrose 농도는 30 g/L에서 가장 양호하였으며, 90g/L 이상의 sucrose 첨가배지에서의 자구형성은 심하게 억제되었다. 비대된 인편을 단축경과 함께 5mm크기로 잘라 60일 간격으로 1, 2, 3차 계대 배양한 결과, 절편당 자구수는 6.5, 7.3, 8.2개로 다수의 기내자구를 지속적으로 생산할 수 있었다. 기내 형성된 3mm 이상의 자구는 생장조절제를 첨가하지 않은 MS배지에 옮겨 60일간 생육시킨 후, 초장 50mm이상 자란 식물체를 버미큐라이트와 펄라이트를 1:1 혼합한 배양토에 순화시켰을 때, 생존율은 95% 이상으로 높았다.

The twin-scale segments of nerine (Nerine bowdenii) were cultured to investigate the influence of NAA, BA and sucrose concentrations on in vitro bulblet formation. The formation of bulblets from twin-scale segments showed a good response both the percentage of bulblet formation and the number of bulblets per explant on MS medium supplemented with 1mg/L NAA and 2 mg/L BA. Formation of bulblet showed the highest efficiency on medium containing 30g/L, and the formation of bulblets was strongly inhibited on medium containing over 90g/L. When the twin-scale segments formed bulblets were subcultured three times to the same medium by 60 day subculture interval, the number of bulblets per explant was 6.5, 7.3 and 8.2 in order of first, second and third. The bulblets over 3mm in diameter were hypertrophied and rooted after transferring to the hormone-free MS medium. The plantlets over 50mm in height were successfully acclimatized in the soil mixed with the same volume of vermiculite and perlite, and the survival rate was over 95％.

키워드

참고문헌

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