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오미정(Mi-Joung Oh),최준영(Jun-Young Choi),형남인(Nam-In Hyung) 한국차학회 2004 한국차학회지 Vol.10 No.1
The efficient micropropagation system using shoot cultures of tea plant(Camellia sinensis (L.) O. Kuntze) was established. For shoot multiplication and root formation, effects of plant growth regulators, medium and sucrose were investigated. Among BA and IBA combination treatments, the highest number of shoot was obtained with 2.0mg/L BA and 0.2mb/L IBA. MS medium was more effective on shoot length, shoot number, fresh weight than 1/2MS and WPM. Shoot multiplication was more effective on 30g/L sucrose than 20g/L and 40g/L. The optimal concentration for the rooting of shoot cuttings was 3.0mg/L IBA, in which 88.9% rooting frequency was obtained. The plantlets were transferred to soil mixtures with vermiculite and perlite, and successfully acclimatized.
사과 '후지'의 잎 절편체로부터 신초 기관형성을 통한 식물체 재생에 적합한 배지조성
이윤경,권영주,형남인,Lee, Yoon Kyung,Hyung, Nam-In 한국식물생명공학회 2019 식물생명공학회지 Vol.46 No.4
Plant regeneration protocols for adventitious shoot organogenesis from apple (Malus domestica 'Fuji') leaf explants were developed in the present study. The effects of different basal media, types and concentrations of carbon sources, and concentrations of plant growth regulators were evaluated to determine the optimal shoot regeneration conditions for 'Fuji' apple leaf explants. On different treatments involving combinations of basal media, LS and N6 media, and different types and concentrations of cytokinins, 6-benzyl-adenine (BA) and thidiazuron (TDZ), shoot regeneration rates were the highest in the N6 medium combined with BA. Among the plant growth regulator and carbon source combination treatments, 5.0 mg/L BA, and 0.1 mg/L α-naphthalene acetic acid (NAA) with 40 g/L sorbitol was the optimal combination for shoot regeneration. In addition, the optimal sorbitol concentrations for shoot regeneration were 40 g/L and 60 g/L. The highest regeneration (81.8%) was achieved using 40 g/L sorbitol. The regenerated shoots elongated and rooted on rooting medium, consisting of 1/4 MS medium with 0.2 mg/L indole-3-butyric acid (IBA). The plantlets were acclimatized and the regenerated plants exhibited normal phenotypes. 사과 '후지'의 잎 절편체로부터 신초 기관형성을 통한 효율적인 식물체 재생 시스템을 확립하기 위하여 배지조성 중 식물생장조절제, 기본배지와 당의 종류 및 농도를 달리하여 실험을 실시하였다. 식물생장조절제 NAA가 첨가된 상태에서 기본배지 중 N6와 LS, cytokinin 중 BA와 TDZ를 비교하였을 때, N6 배지에 BA 5.0 mg/L를 사용하는 것이 신초 형성율과 절편체당 재생 신초수에서 효과적이었다. BA보다 신초 형성에 효과적인 것으로 알려진 TDZ는 본 실험에서는 전반적으로 신초 형성율이 낮았다. 탄소 공급원과 식물생장조절제의 조합 처리에서는 sorbitol 40 g/L의 처리가 신초 형성율 67.3%, 절편체당 신초수 4.3개로 가장 좋았고, 식물생장조절제는 BA 5.0 mg/L와 NAA 0.1 mg/L의 혼합처리가 가장 효과적이었다. 암조건에서 3주간 배양한 후 명조건으로 옮겨 총 8주간 배양하여 재생된 신초는 1/4MS에 IBA 0.2 mg/L가 첨가된 배지에서 발근을 유도한 후 활착시켜 온실에서 재배하였을 때 정상적인 표현형을 보여주었다.
차나무의 마디배양에 의한 신초 증식에 영향을 미치는 요인
오미정(Mi-Joung Oh),최준영(Jun-Young Choi),형남인(Nam-In Hyung) 한국차학회 2002 한국차학회지 Vol.8 No.1
To investigate the optimal conditions for shoot multiplication from node culture in tea plant (Camellia sinensis (L.) O. Kuntze), the effects of plant growth regulators, medium and sucrose were tested. Shoot proliferation was largely affected by plant growth regulators. Among plant growth regulator treatments, the best shoot multiplication was obtained at 3.0.mg/L BA and 0.5mg/L IBA combination treatmet, which produced normally elongated 4.6 shoots. In proportional to BA concentration increment, shoot length was reduced. Comparing medium kinds, MS and 1/2MS medium was superior to WPM on shoot number and growth. On sucrose concentration treatments, 30g/L sucrose was effective on shoot number and fresh weight. Consequently, these results showed that shoot multiplication through tea node cultures could be successfully carried out on MS medium supplemented with 3.0mg/L BA. 0.5mg/L IBA, and 30g/L sucrose.