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Plant Production from Desiccated Somatic Embryos of Acanthopanax chiisanensis

지리오가피 (Acanthopanax chiisanensis) 체세포배의 건조처리를 통한 식물체 증식

  • Published : 2003.12.01

Abstract

An efficient method of plant regeneration from Acanthopanax chiisanensis somatic embryos was developed. Cotyledonary somatic embryos were obtained in liquid Murashige and Skoog (MS) medium from embryogenic cell suspension cultures. They were desiccated for 0 to 72 hr and then cultured on MS medium containing NAA, BA, GA$_3$, (0-0.5mg/L). The highest multiple shoots formation (100%) was obtained from 72 hr desiccated somatic embryos on ifs medium with 0.5mg/L NAA+0.5mg/L BA or 0.5 mg/L NAA+0.5mg/L BA+0.5mg/L GA$_3$ after 6 weeks culture. Plant conversion from multiple shoots was not high. The highest plant conversion from multiple shoots was obtained on 1/3MS medium with 1.0mg/L GA$_3$. Converted plantlets were transferred to ex vitro condition and the highest survival rate (70%) of the plantlets was obtained on plastic pots containing vermiculite and sand. These results indicate that micropropagation procedure can be applied for an efficient mass propagation of Acanthopanax chiisanensis.

지리오가피의 체세포배로부터 식물체재생을 위한 효율적인 방법을 개발하였다. 체세포배의 형태형성에 미치는 식물생장 조절물질의 영향을 조사하고자, 접합자 배 유래의 배발생 세포를 MS배지에 현탁배양하고, 이로부터 얻어진 자엽시기의 배를 배양접시에서 건조처리 (0∼72 h)한 후, NAA, BA, GA$_3$(0∼0.5mg/L)가 첨가된 MS배지에 배양하였다. 그 결과, 체세포배를 72시간 동안 배양접시에서 건조처리 후에 0.5mg/L NAA, 0.5mg/L BA 또는 0.5mg/L NAA, 0.5mg/L BA 0.5mg/L GA$_3$가 첨가된 MS배지에 6주간 배양하였을 때, multiple shoot가 100%로서 가장 높게 유도됨을 관찰 할 수 있었다. 가장 높은 식물체의 재생율 (29.1%)은 체세포배를 72시간 건조처리 후에,0.1mg/L NAA, 0.1mg/L BA그리고 0.1mg/L GA$_3$가 첨가된 MS배지에 6주간 이식한 후, 이를 다시 1.0mg/L GA$_3$가 첨가된 1/3MS배지에 6주간 배양하였을 때 이루어졌다. 유식물체를 vermiculite와 sand가 1:1로 첨가된 plastic pot 이식하였을 때 생존율은 약 70%로서 나타났다 이상의 결과는 지리오가피의 계량생산에 활용될 수 있을 것으로 기대된다.

Keywords

References

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