Journal of Plant Biotechnology

  • 제31권3호
  • /
  • Pages.203-207
  • /
  • 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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구기자나무(Lycium chinense Mill.) 유식물체의 자엽하배축으로부터 고효율의 부정아 형성과 식물체 재생

High Frequency Shoot Formation and Plant Regeneration from Cotyledonary Hypocotyl Explants of Boxthorn (Lycium chinense Mill.) Seedlings

  • 조만현 (충청남도농업기술원 원예연구과) ;
  • 함인기 (충청남도농업기술원 원예연구과) ;
  • 이봉춘 (충청남도농업기술원 청양구기자시험장) ;
  • 김재훈 ((주)마이크로프랜츠) ;
  • 이원석 ((주)마이크로프랜츠) ;
  • 권석윤 (한국생명공학연구원 환경생명공학연구실) ;
  • 이행순 (한국생명공학연구원 식물세포공학연구실) ;
  • 곽상수 (한국생명공학연구원 환경생명공학연구실)
  • 발행 : 2004.09.01
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초록

두 품종 (청양재래, 명안)의 구기자나무 (Lycium chinense Mill.) 유식물체를 자엽하배축의 자엽 일부분만 남기고 절단 후, 절단면이 1.0 mg/L zeatin이 첨가된 MS배지에 접하도록 하여 암소에서 3주 배양한 후 명소로 옮겨 배양하였을 때 자엽하배축 절단면으로부터 부정아가 고빈도 (80% 이상)로 유도되었다. 그러나 자엽하배축절편을 암소에서 전 배양하지 않고, 명소에서만 배양 하였을 경우 부정아는 유도되지 않았다. 자엽하배축 절단면에서 유도된 부정아를 분리하여 1.0 mg/L IAA가 함유된 발근배지에서 4주간 배양하여 뿌리를 유도하였다. 잎과 뿌리가 잘 발달한 소식물체는 화분에 옮겨 키웠을 때 정상적인 형태의 재분화 식물체로 성장하였다.

To establish high frequency shoot formation from two cultivars (Cheongyangjaerae and Myungan) of boxthorn (Lycium chinense Mill.), hypocotyl segments with cotyledons from seedlings were used as explants. High frequency adventitious shoot formation (more than 80%) were obtained from hypocotyl segments with cotyledon on MS medium supplemented with 1.0 mg/L zeatin, when precultured for 3 weeks under dark conditions followed by transfer to light conditions. But there was no shoot induction in the explants cultured without preculture under dark conditions. Roots were induced from the shoots when transferred to rooting medium supplemented with 1.0 mg/L IAA for 4 weeks. Regenerated plantlets were grown to normal mature plants in soil.

키워드

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