Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
권호 표지

Structural Characteristics of Shoot Apex Developed from Somatic Embryos of Daucus carota L.

당근의 체세포배로부터 발생한 경정부의 구조적 특성

  • 홍성식 (전남대학교 사범대학 생물교육과) ;
  • 소웅영 (전북대학교 자연과학대학 생물과학부)
  • Published : 1999.06.01
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Abstract

The structure of shoot apex in zygotic and somatic embryos of Daucus carota L. cv. Hongshim was observed by using SEM and longitudinal sections. Shoot apex of zygotic embryo was of an inverted boat shape, and these of two, three and four cotyledon somatic embryos were of an inverted boat shape, a pyramid shape and a convex diamond shape, respectively. In zygotic embryo shoot apex is consisted of small cells which are arranged in layers (tunica) and show corpus in central region. In somatic embryos shoot apices are consisted of somewhat large cells which are arranged in irregularly or slight regularly.

당근(Daucus carota L. cv. Hongshim)의 접합자배와 체세포배의 경정부의 구조는 주사전자현미경과 종단면 관찰을 통하여 이루어졌다. 접합자배의 경정부는 도립된 보우트형이고, 2ㆍ3ㆍ4자엽 체세포배의 경정부는 각각 도립된 보우트형, 피라미드형 및 볼록한 다이아몬드형으로 나타났다. 접합자배의 경정부는 다소 작은 세포들로 구성되어 있고, 초층과 내체의 구별이 된다. 체세포배의 경정부는 다소 큰 세포들이 불규칙하게 배열되어 있다.

Keywords

References

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