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상사화의 기내증식에 미치는 배양부위와 생장조절물질의 영향

Effects of Explant Parts and Plant Growth Regulators on the in vitro Propagation of Lycoris squamigera

  • 은종선 (전북대학교 농과대학 생물산업연구소) ;
  • 김영선 (남도대학 원예산업과) ;
  • 박종숙 (전북대학교 농과대학 생물산업연구소) ;
  • ;
  • Eun, Jong-Seon (Research Institute of Bioindustry, Chonbuk National University) ;
  • Kim, Young-Seon (Dept. of Horticultural Industry, Namdo Provincial College of Jeonnam) ;
  • Park, Jong-Suk (Research Institute of Bioindustry, Chonbuk National University) ;
  • JIN, Song Nan (Research Institute of Bioindustry, Chonbuk National University) ;
  • CAO, Hounan (Horticultural Dept., Agricultural College of Yanbian University)
  • 발행 : 2002.09.01

초록

상사화의 기내 대량증식에 미치는 배지의 조성을 구명하기 위하여 생장조절물질의 첨가량을 달리한 MS기본배지에 disk, 인경구내의 잎과 인편조직을 배양한 후 캘러스의 발생과 shoot 및 뿌리의 재분화양상을 조사하였다. Disk조직의 배양에서는 인편 사이의 기부조직에서 shoot가 발생하였으며, 2,4-D 혹은 NAA 1.0 mg/L + BA 혹은 kinetin 2.0 mg/L가 혼용첨가된 배지에서 절편체당 4∼6개의 shoot가 발생되어 가장 좋은 반응을 보였다. 인편 내측의 잎절편을 배양한 경우 NAA 1.0 mg/L + TDZ 2.0 mg/L 혼용구와 2,4-D 1.0 mg/L + BA 1.0∼2.0 mg/L 혼용구에서는 잎조직의 기부에서 캘러스가 왕성하게 발생한 후 3∼6개의 shoot가 재분화하였다. 인편조직은 기부조직에서 캘러스가 발생하였으며 2,4-D 1.0mg/L와 BA 1.0∼2.0 mg/L처리구에서 왕성하였다 NAA 1.0mg/L와 TDZ 2.0 mg/L의 혼용처리구와 2,4-D 1.0 mg/L와 BA 1.0∼2.0 mg/L 혼용구에서는 최고 10∼12개의 shoot가 분화하여 가장 양호한 결과를 보였다. 뿌리는 각 배양체 모두 NAA 1.0 mg/L와 kinetin 2.0 mg/L 혼용구에서 가장 왕성하게 발생되었다. Shoot의 재분화는 disk나 잎조직에 비해 인편 조직을 배양한 경우가 적합한 배양부위로 조사되었는 바 유식물체의 대량증식에 가장 바람직한 방법은 인편조직을 이용하여 shoot를 재분화시킨 후 뿌리발생 배지에 계대배양하는 것이 적합하다고 판단되었다.

This study was carried out to investigate the influence of medium composition for in vitro mass propagation of Lycoris squamigera Max. After the disks of short stems, segments of leaf within bulb and scale were cultured on MS basal medium supplemented with various plant growth regulators, they were examined for the extent of callus formation, shoot and root regeneration. In the culture of stem disks, adventitious shoots were regenerated from the basal tissue of bulb scales, and combined medium of 1.0 mg/L 2,4-D or NAA+2.0 mg/L BA or kinetin showed the the best response and 4∼6 shoots per explant formed. In the culture of leaf segments within bulbs, both MS medium supplemented with 1.0 mg/L NAA+2.0 mg/L TDZ and with 1.0 mg/L 2,4-D+1.0∼2.0 mg/L BA were produced callus profusely on the base of leaf tissue and 3∼6 shoots were regenerated per explant. In the scale segments culture, calli were produced on the basal tissue on medium with 1.0 mg/L 2,4-D+1.0∼2.0 mg/L BA. The best result were shown on MS medium with 1.0 mg/L NAA+2.0 mg/L TDZ, and 1.0 mg/L 2,4-D+1.0∼2.0 mg/L BA. Maximum number of regenerated shoots was up to 10∼12. Adventitious root formation from explants were formed profusely on MS medium with 1.0 mg/L NAA+2.0 mg/L kinetin. The most desirable method for mass propagation of plantlets was the shoot regeneration from scale segments then subsequently subcultured on medium for rooting.

키워드

참고문헌

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