화훼연구 (FLOWER RESEARCH JOURNAL)

  • 제18권1호
  • /
  • Pages.15-22
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  • 2010
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  • 1225-5009(pISSN)
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  • 2287-772X(eISSN)
한국화훼학회 (The Korean Society for Floricultural Science)
권호 표지

나무이끼(Climacium japonicum)의 기내배양에 영향을 미치는 몇 가지 요인

Several Factors Affecting In Vitro Propagation of Climacium japonicum

  • Ahmed, Md. Giush Uddin (Department of Horticultural Sciences, Chungbuk National University) ;
  • Lee, Cheol Hee (Department of Horticultural Sciences, Chungbuk National University)
  • 투고 : 2010.01.28
  • 심사 : 2010.02.25
  • 발행 : 2010.03.31
⟨ 이전 논문 다음 논문 ⟩

초록

본 연구는 나무이끼(Climacium japonicum) 배우체의 기내증식에 영향을 미치는 몇 종류의 화학적 및 물리적 환경을 표준화하기 위하여 실시하였다. 초기 배양재료는 멸균한 배우체의 정단을 Knop 배지(1865)의 다량요소와 Nitsch와 Nitsch배지 (1956)의 미량요소를 첨가한 고체배지에 배양하여 획득하였다. 배우체 생산을 위해 좋은 배양재료를 얻기 위하여 다져진 배우체 및 shoot의 정단부와 기저부를 평가하였다. 배우체의 기내생산에 미치는 영향을 검정하기 위해 배지 7종류, 총질소 4농도, sucrose 5농도, 광도와 온도 등의 요인들을 분석하였다. Shoot의 정단부가 배우체 번식을 위해 사용한 3종류의 절편체들 중 가장 우수하였으며, Knop 배지(1865)의 다량요소와 Nitsch와 Nitsch배지 (1956)의 미량요소를 첨가한 배지가 다른 종류의 배지들에 비해 배우체의 증식에 효과적 이었다. Sucrose의 농도가 높아질수록 배우체의 신장 및 증식에 좋은 영향을 미쳤으며, 질소의 결핍 및 과다는 배우체의 생장을 억제하였다. 광도의 강약에 따라 배수체의 수, 길이 및 생체중에 큰 변화를 보였으며, 배우체 생장을 위해 최적의 광도는 3000-4000lx. 인 것으로 생각되었다. 고온 또는 저온 조 건은 배우체의 증식과 생산에 부정적인 영향을 미쳤다. 본 연구에 의해 개발된 생산과정의 단순화, 대량화 및 영양체의 고품질화는 효과적인 이끼의 기내배양 방법으로 생각되었다.

These investigations were conducted to standardize several chemical and physical environments affecting in vitro propagation of gametophytes of Climacium japonicum. Propagation of this moss species was established on basal medium containing Knop macro salts and Nitsch and Nitsch trace elements. Primary cultures were initiated from apical shoots of gametophytes. Gametophyte production was accessed using chopped gametophytes, apical shoots and basal shoots. Seven ty pes of culture media and four concentrations of total nitrogen and five strengths of sucrose were tested for in vitro gametophyte production. Light and temperature factors were also evaluated. Apical shoots were the greatest among three types explants used for gametophyte propagation. Medium containing Knop macro salts and Nitsch and Nitsch trace elements was more effective than other types of media. Higher sucrose concentrations showed a positive effect on the elongation and multiplication of gametophytes. Both nitrogen deficiency and excessiveness inhibited gametophyte growth. Light intensity variation showed highly significant changes in numbers, length and fresh weight of gametophytes. Optimum light intensity for gametophyte growth seemed to be around 3000-4000 lx. Both lower and higher temperature had a negative effect on gametophyte propagation and production. This study will provide large scale and high quality propagules, and effective moss propagation system.

키워드

과제정보

연구 과제 주관 기관 : 한국산업기술평가원

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