금새우난초(Calanthe striata f. sieboldii Decne. ex Regel)종자의 비공생 발아 및 신초증식

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배기화;김수영
Bae, Kee Hwa;Kim, Soo-Young

  • 투고 : 2015.05.22
  • 심사 : 2015.09.15
  • 발행 : 2015.09.30

초록

본 연구는 자생 난초과식물인 금새우난초의 기내 비대배 유도, 발아 및 배직경에 미치는 몇 가지 영향(NaOCl, 배지, 식물생장조절제)을 조사하기 위해 수행되었다. 1% NaOCl을 30분간 처리한 후 POM배지에 배양할 경우, 비대배 유도는 28.3%, 발아율은 54.8%, 배직경은 $205.8{\mu}m$로 가장 높게 조사되었다. NaOCl 무처리 종자를 POM배지에 배양할 경우, 비대배 유도는 8.5%, 발아율은 13.4%, 배직경은 $14.6{\mu}m$로 조사되었다. 또한 식물생장조절물질의 처리가 발아에 미치는 영향을 조사한 결과, 1.0 mg/L의 BA 처리구(95.6%)의 발아율은 대조구(54.5%)에 비해 1.75배 높게 조사되었다. AC와 sucrose의 처리 농도가 기내 식물체 생장에 미치는 영향을 조사한 결과, 엽장은 10 g/L의 sucrose 처리구에서 6.8 cm로 가장 길었고, 대조구는 3.3 cm로 가장 짧았다. 근장은 50 g/L의 sucrose 처리구에서 5.8 cm로 가장 길었고, 대조구는 1.7 cm로 가장 짧았다. 생중량과 건중량은 AC와 sucrose 처리구가 대조구에 비해 2~5배 이상 높은 결과를 보였다. 결과적으로 본 연구는 금새우난초의 기내 발아 및 증식에 미치는 몇 가지 요인에 관해 구체적인 결과를 제시하였고, 이러한 결과는 향후 자생 난초과식물의 증식 및 보존전략 개발에 중요한 기초자료로 제공 될 것이다.

키워드

Activated charcoal;in vitro;Medium;Sodium hyporchlorite;Sucrose

참고문헌

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과제정보

연구 과제번호 : 국가 야생식물 종자 확보 및 은행 운영

연구 과제 주관 기관 : 국립생물자원관