Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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Effect of Plant Growth Regulators on in vitro Micropropagation of Colored Calla Lily(Zantedeschia spp.)

유색칼라 기내 미세번식에 미치는 식물생장조절물질의 영향

  • Lee Young Soon (Kyonggi Agricultural Research & Extension Services) ;
  • Ko Jeong Ae (Horticultural Science Major, Faculty of Biological Resources Sciences, College of Agriculture, Chonbuk National University)
  • Published : 2005.02.01
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Abstract

To establish rapid micropropagation through organogenesis from apices-derived callus or direct adventitious shoot of three calla lily cultivars(Zantedeschia spp, cv. Sunlight, cv. Chiante, cv. Pink Persuation) were cultured on Murashige and Skoog medium supplemented with different plant growth regulators. The formation rate of callus, organogenesis and in viかo tuber production among the three cultivars were tested. Callus was obtained from cvs. Sunlight, Chiante and Pink Persuasion; the best cultivar was Sunlight. Sunlight induced $53.3\%$ callus and Chiante had the highest rate of $56.7\%$ direct shoot regeneration on medium with 2.0 mg/L BA. Regeneration frequencies ranged from 20 to $70\%$ on medium with 2.0-3.0 mg/L BA. The highest percentage of regeneration and the greatest number of shoots were obtained on medium containing 3.0 mg/L BA in three cultivars. Cytokinins induced multiple shoot formation; 1.0 mg/L of 2ip, 5.0 mg/L of BA, and 1.0 m/L of BA induced 16, 14 and 12 multiple shoots in cvs. Sunlight, Chiante and Pink Persuasion, respectivly. 1.0 mg/L of IAA enhanced root growth in cvs. Sunlight and Chiante while cv. Pink Persuasion exhibited enhanced root growth at 2.0 mg/L of IBA. NAA, however, induced no change in root growth. The addition of 90 g/L sucrose enhanced in vitro tuber formation and following tuber expansion in cv. Sunlight, while 70 g/L of sucrose was effective in cvs. Chiante and Pink Persuasion.

유색 칼라 세 품종(Sunlight, Chiante, Pink Persuation)의 기내 급속증식체계를 확립코자 정단분 열조직을 배양함에 있어 callus, 신초 및 뿌리 분화에 미치는 식물생장조절물질의 효과와 sucrose가 기내 괴경 형성 및 비대에 미치는 효과를 조사하였다. 식물체는 캘러스를 통하거나 또는 치상체에서 직접 분화되는 두 경로로 형성되었으며 2.0 mg/L BA 단용 처리에서 Sunlight품종은 $53.3\%$ 캘러스를, Chiante 품종은 $56.7\%$ 직접 신초를 형성하였다. 2.0-3.0 mg/L BA 단용 처리는 품종별로 식물체재 분화 빈도가 $20-70\%$로 차이가 있었으나 세 품종 모두 3.0 mg/L. BA 단용 처리에서 신초 분화가 양호하였다. 다아체 형성에 미치는 cytokinin의 효과는 Sunlight품종은 1.0 mg/L 2ip 처리로 16개체를, Chiante 품종은 5.0 mg/L BA를 처리로 14개체를, Pink Persuasion품종은 1.0 mg/L BA처리로 12개체를 형성하였다. NAA는 세품종 뿌리분화에 효과가 없었으며 Sunlight 와 Chiante 품종은 1.0 mg/L IAA에서, Pink Persuasion 품종은 2.0 mg/L IBA가 효과적이었다. 괴경형성에 미치는 sucrose는 Sunlight 품종은 90 g/L, Chiante 및 Pink Persuasion 품종은 70 g/L 가 괴경 형성 및 비대에 효과적이었다.

Keywords

References

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