Korean Journal of Plant Tissue Culture (식물조직배양학회지)

The Korean Society of Plant Biotechnology (한국식물생명공학회)
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Characteristics in Tissue Cultured Plants of Chinese foxglove(Rehmannia glutinosa)

지황 조직배양주의 수량성과 성분함량 특성

  • Published : 1999.07.01
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Abstract

Chinese foxglove(Rehmannia glutinosa) is receiving much attention as one of the principal medicinal crops and the crud drug. This study was conducted to obtain the basic breeding information of Chinese foxglove derived from tissue culture. To compare plant characteristics between local variety and tissue cultured seedlings, plant growth and root yield has been investigated. In addition, catalpol and free sugar contents were also analized. The ability for the storage of root stock originated from tissue culture seedlings were better than that of local variety. The growth and root yield of in vitro propagated plants were superior to those of conventionally propagated plants. Root yield of 1-year-old and 2-year-old seedlings investigated 112% and 246% respectively than Seacheon local shows 384 kg/10 a. Although there were no significant different between tissue culture seedlings and conventionally propagated one, slight decline of component contents in tissue culture plants were still existed. Investigated sugar content among Seocheon local, 1-year-old tissue culture seedlings, and 2-year-old tissue culture seedlings were 1.86%, 1.21%, and 1.10% respectively. Catalpol content as one of standard materials indicates 0.46% in Seocheon local and 0.40% in tissue cultured ones.

지황 (Rehmannia glutinosa) 우량종묘 생산을 위하여 조직배양에 의해 생산된 종묘의 포장수량성을 평가하고 지표성분인 Catalpol과 유리당 함량 특성을 비교한 결과는 다음과 같다. 조직배양주의 종근저장성은 재래종에 비하여 약간 양호한 경향이었다. 또한 근장, 근경 등의 뿌리생육이 왕성하여 조직배양주의 수량성은 서천재래종 384kg/10 a에 비하여 1년차 묘는 112%, 2년차 묘는 246%까지 증수되는 결과를 보였다. 성분함량 특성비교에서는 총당함량이 서천재래 1.86%에 비하여 조직배양 1, 2년차 묘는 각각 1.21, 1.10%를 보였고, 지표성분인 Catalpol도 서천재래 0.46%에 비하여 조직배양 1, 2년차묘는 0.4%로 약간 감소되는 경향이었다. 이상의 결과에서 지황 조직배양주의 수량성은 재래종에 비하여 증수되는 특성을 보였다. 그러나 유리당과 Catalpol 함량은 약간 감소되는 경향이었는데 모본식물과 큰 차이를 보이지는 않았다.

Keywords

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