국화의 엽절편 배양에 의한 식물체 재생

Plant Regeneration from Leaf Segment Cultures of Chrysanthemum(Dendranthema grandiflora grandiflora Tzvelev)

  • 발행 : 1999.01.01

초록

국화 '남전'의 기내배양된 엽절편으로부터 신초 기관형성을 통한 효율적인 식물체 재생 체계를 확립하였다. 엽절편으로부터의 부정지 형성은 생장조절제 조성, 잎의 연령, 광조건, 배양용기당 절편체 수 및 치상방향에 의해 많은 영향을 받는 것으로 나타났다. 효율적인 부정지 형성을 위해서는 MS배지에 생장조절제 BA 0.5 ㎎/L 와 NAA 2.0 ㎎/L를 첨가하는 것이 가장 좋았으며, 엽절편체는 완전히 전개된 신초 상부의 1∼2번째 잎을 채취하여 4면을 절단한 다음 잎의 향축면이 배지에 닿도록 하여 Petri-dish당 8개의 엽절편을 치상하여 배양초기 1주간 암조건에서 배양하다가 명조건으로 옮겨주는 것이 가장 효과적이었다. 이와 같은 조건에서 엽절편체로부터 신초 재생률 100%, 절편체당 신초수 13.7개의 양호한 재생 이 이루어졌다. 재생된 신초는 NAA 0.1 ㎎/L를 첨가한 MS배지에서 성공적으로 발근이 이루어져 소식물체가 얻어졌다. 엽절편체로부터 얻어진 소식물체를 인공토양 (Vermiculite: Perlite=1:1)에서 활착시켜 온실에서 재배하였는데, 외견상 정상적으로 개화하였다.

Efficient plant regeneration via shoot organogenesis from in vitro cultured leaf segments of chrysanthemum (Dendranthema grandiflora Tzvelev cv. Namjeon) was achieved. Adventitious shoot formation from leaf explants was greatly influenced by plant growth regulator, leaf age, light condition, explant number per culture vessel, and explant orientation. Leaf segments, obtained from fully expanded young 1-2nd leaves and inoculated 8 explants per petri-dish with adaxial surface contact with MS medium supplemented with 0.5 mg/L BA and 2.0 mg/L NAA, produced 100% regeneration frequency and 13.7 shoots per explant. Regenerated adventitious shoots were successfully rooted in MS medium with 0.1 mg/L NAA. The plantlets were acclimatized in artificial soil mixtures (Vermiculite:Perlite=1:1), and transferred to greenhouse for flowering. The regenerated plants showed normal phenotypes.

키워드

참고문헌

  1. Plant Growth Reg v.15 Polyamine metabolism and in vitro cell multiplication and differentiation in leaf explants of Chrysnthenum morifolium Arabaud M;Carre M;Martin-Tanguy J
  2. Hort Science v.7 Rapid multiplication of Chrysanthemum plants by stem tip proliferation Ben-Jaacov J;Langhans RW
  3. Amer J Bot v.63 Plantlets from petal segments, petal epidrmis and shoot tips of the periclinal chimera, Chrysanthenum morifolium Bush SR;Earle ED;Langhans RW
  4. Physiol Mol Plant Pathol v.39 Cultivar-strain specificity between Chrysanthemum morifolium and Agrobacterium tumefaciens Bush AL;Pueppke SG
  5. Bio/Tech v.12 Modification of flower color in florist's chrysanthemum: Production of white-flowering variety through molecular genetics Courtney-Gutterson N;Napoli C;Lemieux C;Morgan A;Riroozabady E;Robinson KEP
  6. Euphytica v.35 Induced changes in growth and flowering of chrysanthemum after irradiation and in vitro culture of pedicels and petal epidermis De Jong J;Clusters JBM
  7. Theor Appl Genet v.43 Genetic studies of self incompatibility in the garden chrysanthemum Chrysanthemum morifolium Ramat Drewlow LW;Ascher PD;Widmer RE
  8. J Amer Soc Hort Sci v.99 Propagation of Chrysanthemum in vitro Ⅱ. Production, growth, and flowering of plantlets from tissue cultures Earle ED;Langhans RW
  9. Plant Cell Tiss Org Cult v.21 Shoot regeneration from stem and leaf explants of Dendranthema grandiflora Tzvelev (syn. Chrysanthemum morifolium Ramat.) Kaul V;Miller RM;Hutchinson JF;Richards D
  10. Plant Cell Tiss Org Cult v.41 an improved micropropagation system for chrysanthemum based on Pluronic F-68-supplemented media Khehra M;Lowe KC;Davey MR;Power JB
  11. Plant Cell Rep v.10 Regeneration and Agrobacterium-mediated transformation of chrysanthemum Ledger SE;Deroles SC;Given NK
  12. Plant Cell Rep v.8 Effect, direct plant regeneration from stem segments of chrysanthemum (Chrysan-themum morifolium Ramat. cv. Royal Purple) Lu C;Nugent G;Wardley
  13. J Amer Soc Hort Sci v.116 Somatic embryogenesis and plant regeneration from of Dendranthema grandiflora May RA;Trigiano RN
  14. Physiol Plant v.15 A revised medium for rapid growth and bioassays with tobacco tissue culture Murashige T;Skoog F
  15. J Amer Soc Hort Sci v.114 Direct shoot regeneration from stawberry leaf disks Nehra NS;Stushnoff C
  16. Sci Hort v.3 Vegetative propagation of Chrysanthemum morifolium Ram Roest S;Bokelmann GS
  17. Ann Bot v.40 Abnormalities in chrysanthemum regenerated from long term cultures Sutter E;Langhans RW