Journal of Plant Biotechnology

The Korean Society of Plant Biotechnology (한국식물생명공학회)
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Somatic Embryogenesis and Plant Regeneration from Stem Tissues of Orostachys japonicus A. Berger

  • Published : 2007.09.29
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Abstract

Orostachys japonicus A. Berger is a Perennial herbaceous plant which has been traditionally used as an anti-inflammatory agent to treat hepatitis and as an anticancer agent. The objective of this study was 1) to establish and proliferate in vitro plant of O. japonicus 2) to induce indirect somatic embryogenesis from O. japonicus. General calli and embryogenic calli in all ranges of 2,4-D and BA combination, were induced and were best at 22% (embryogenic cell) in 5.0 mg/L 2,4-D and 0.5 mg/L BA combination. Embryogenic cell line was maintained by subculture at 2 week intervals and transferred to solid and liquid medium for embryo formation. In solid medium culture, globular and heart shaped embryos were observed in MS medium containing 5.0 mg/L 2,4-D and 0.5 mg/L BA combination. The number of embryos was 6.5 per 0.5 g cell, and then the immature embryos transferred to MS basal medium for embryo development. In a suspension culture of embryogenic cells, globular and heart shaped embryos were emerged in MS medium supplemented with 3.0 mg/L 2,4-D and 0.3 mg/L BA combination after 10 days of incubation. The embryo formation rate was about 33% by suspension culture. The ratio of embryo germination was 60.9%, on the other side, the root formation rate was 74.3% in 1/2 MS continuously.

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References

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