• 제목/요약/키워드: Protocorm

검색결과 41건 처리시간 0.025초

새우난초(Calanthe discolor Lindl.)와 금새우난초[C. discolor for. sieboldii (Decne.) Ohwi]의 종간교배에 의한 1대잡종 종자의 기내무균 발아 (Aseptic Germination of F1 Hybrid Seed by Inter-species Pollination of Calanthe discolor Lindl. and C. discolor for. Sieboldii (Decne.) Ohwi)

  • 김광수;김종선;박종환
    • 한국자원식물학회지
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    • 제21권4호
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    • pp.341-345
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    • 2008
  • 원예화 가능성이 매우 높은 왕새우난초($C.{\times}bicolor$)의 기내 대량증식법을 확립하기 위해 새우난초(C. discolor)와 금새우난초(C. discolor for. sieboldii)를 4월 중순에 종간 인공 교배하여 같은 해 10월 중순에 F1 잡종 종자를 획득하여 종자의 전처리 및 여러 가지 배양환경에 따른 발아율 및 기타 생육 특성을 조사하였다. 파종 시 종자의 전처리에 따른 F1 종자의 기내 발아율을 조사한 결과, 종자의 흡습처리와 초음파 처리가 종자의 발아율과 원괴체 형성율을 높일 뿐만 아니라 원괴체의 형성기간도 단축되었다. 또한 파종 후 암배양하는 것이 종자의 발아율 및 원괴체의 형성율이 높았다. 발아 배지에 NAA와 BA 등의 호르몬 첨가는 발아율과 원괴체의 형성율을 촉진하였지만 비정상적 인 유묘가 많이 발생하여 건강한 유묘의 생산에는 적합하지 않았다. 유묘는 활성탄을 $0.5g/L^{-1}$를 첨가한 H3P4배지에 계대배양하여 건강한 새우난초 유식물체를 생산하였으며, 화분에서 성공적으로 순화하여 새우난초와 금새우난초의 인공교배를 통하여 원예성이 높은 왕새우난초을 육성할 수 있음을 확인할 수 있었다.

수분 후 경과일수 및 배지가 심비디움 교배조합의 무균발아에 미치는 영향 (Effects of Days after Pollination and Media on Asymbiotic Germination in Cross Combination of Cymbidium spp.)

  • 김미선;이영란;원제양;김재영;김병현;은종선
    • 원예과학기술지
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    • 제16권2호
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    • pp.236-238
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    • 1998
  • 심비디움의 교배에 의한 신품종 육성시 발아율을 증진시키고 발아기간을 단축시켜 육종 효율을 높이고자 자가 또는 타가수분 후 경과일수에 따라 무균발아에 가장 적합한 수분 후 일수 및 배지에 대해 조사한 결과는 다음과 같다. 자방의 길이 생장은 교배조합에 관계없이 수분후 110일경, 자방의 폭은 교배조합에 따라 다소차이가 있으나 대체로 140일경에 생육이 정지되었다. 자방의 수가 많고 교배된 꼬투리의 교배율이 높은 조합일수록 발아상태가 양호하였다. 수분후 150일 부터 180일 경과된 꼬투리를 배양하는 것이 발아 상태가 가장 양호하였고 발아 소요일수도 짧았다. 무균파종 및 발아 후 생육에 적합한 배지는 하이포넥스 배지로 나타났다.

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철피석곡의 기내 Protocorm Like Bodys(PLBs) 재증식 및 신초형성에 미치는 생장조절제 및 탄소원의 영향 (Effect of plant growth regulators and carbon sources on proliferation and shoot formation of PLBs in Dendrobium candidum)

  • 장지우;김창길;;이도진;정미영
    • Journal of Plant Biotechnology
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    • 제46권1호
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    • pp.9-16
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    • 2019
  • 본 연구는 철피석곡의 PLB 기내 대량증식 방법에 대한 기초자료를 제공함으로써 다양한 분야의 소재활용 수요를 충족시키고 아울러 멸종위기에 처해 있는 철피석곡을 보존하고 수행하였다. 종자유래의 PLB 재 증식에는 H3P4 기본배지에 NAA $0.1mg{\cdot}L^{-1}$과 kinetin $0.1mg{\cdot}L^{-1}$를 혼용한 배지가 가장 적합하였다. H3P4 기본배지 내 탄소원으로 sucrose $10g{\cdot}L^{-1}$를 첨가 했을 때 PLB의 생장이 가장 양호하였다. 재 증식된 PLB로부터 shoot 형성율은 1/4MS 또는 H1P2 배지에 sucrose를 $10g{\cdot}L^{-1}$ 첨가한 배지에서 가장 높았고 shoot의 초장도 길어졌다.

Cymbidium sp.의 Protocorm 내 IAA 산화효소 활성변화가 묘조분화에 미치는 영향 (Influence of Change in IAA-Oxidizing Enzyme Activities on Shoot Differentiation in Cymbidium so. Protocorms)

  • 한태진
    • Journal of Plant Biology
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    • 제33권2호
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    • pp.105-110
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    • 1990
  • Physiological gradient of IAA-oxidizing enzyme activities was investigated in order to elucidate the mechanism of shoot differentiation in Cymbidium sp. (‘Jungfrau’) protocorms by using phenolic compounds (2, 4-dichlorophenol, catechol), auxin-inhibitors (PCIB, TIBA), and hormones (GA3, ABA, BA). The activity of IAA oxidase was decreased in protocorms treated with catechol decreased the catalytic activity of IAA oxidase or TIBA but this enzyme activity was increased after a temporary decrease at initial stages in the presence of 2, 4-dichlorophenol or PCIB. The activity of IAA oxidase in BA-treated protocorms (white and crown gall-like) was the highest of all. However, the catalytic activity of peroxidase increased after a temporary decrease at initial period. These results suggest that shoot differentiation and growth may be influenced by effective IAA levels in the protocorms causing IAA-oxidizing enzyme and phenolic compounds.

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Clonal Propagation through Leaf Sheath Culture of Phalaenopsis

  • Jo, Man-Hyun;Ham, In-Ki;Lee, Mi-Ae;Han, Gyu-Heung;Woo, In-Shik
    • Plant Resources
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    • 제5권3호
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    • pp.176-180
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    • 2002
  • This study was conducted to develop the clonal propagation technique through in vitro culture using by leaf sheath explants of Phalaenopsis grown in vitro. The highest frequency of protocorm-like body (PLB) formation was obtained when explants of leaf sheath were cultured on VW medium containing 30g/L sucrose, 500 mg/L activated charcoal, 150 mVL coconut water, 1 mg/L NAA, 1 mg/L 2ip and 2.5 g/L gelrite. The PLB formation rate of VW medium was highest followed by modified Hyponex medium, and lowest in MS medium. Plantlets induced from PLBs transferred to plastic pots including spagnum moss were well developed.

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Effect of Plant Growth Regulators on Clonal Production through Basal Stem Explant Cultures of a Phalaenopsis Hybrid

  • Jo, Man-Hyun;Ham, In-ki;Park, Sang-kyu;Seo, Gwan-Seok;Han, Gyu-Heung;Woo, In-Shik
    • Plant Resources
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    • 제6권2호
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    • pp.89-93
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    • 2003
  • This study was conducted to develop the clonal propagation technique through in vitro culture using basal stem explants in Phalaenopsis hybrid grown in vitro. The highest frequency of protocorm-like body (PLB) formation was obtained when basal stem explants were cultured on VW medium containing 30g/L sucrose, 500 mg/L activated charcoal, 150 ml/L coconut water, 1 mg/L NAA, 5 mg/L 2iP and 2.5g/L gel rite. PLBs transferred to Hyponex medium were regenerated to plantlets. Plantlets transferred to plastic pots containing spagnum moss were developed and successfully acclimatized under greenhouse. The flower was bloomingly opened in plants regenerated from basal stem explants. The flower was not different from both mother plant and plant induced through clonal propagation of Phalaenopsis hybrid.

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Cymbidium sp. Protocorm의 묘조분화시 내생 Polyamine 함량의 변화 (Change of Endogenous Polyamines During Shoot Differentiation in Cymbidium sp. Protocorms)

  • 한태진
    • Journal of Plant Biology
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    • 제33권1호
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    • pp.41-48
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    • 1990
  • Changes in polamine titers during shoot differentiation in Cymbidium sp. (Jungfrau) protocorms were studied in order to investigate the mechanism of shoot differentiation by using auxin-inhibitors(PCIB, TIBA), hormones(GA3, ABA, BA), and phenolic compounds (2,4-dichlorophenol, catechol). The shoot differentiation and propagation of protocorms were promoted by PCIB or 2,4-dichlorophenol, and the growth of differentiated shoot were promoted by TIBA or catechol. In BA-treated protocorms, white or brown protocorms were observed. Putrescine was the most abundant polyamine during the propagation and differentiation processes. As compared with putrescine, spermidine did not show significant changes and spermine was not detected at all. Putrescine titers decreased after a temporary increase, and then again increased in the presence of GA3, ABA, 2,4-dichlorophenol, and then again increased in the presence of GA3, ABA, 2,4-dichlorophenol, catechol, or PCIB. But, in BA-treated protocorms, putrescine level was much lower than spermidine.

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신규 애주름버섯 NIFOS101을 이용한 천마 종자의 발아효율 증진 (Enhancement of the germination efficiency of Gastrodia elata seeds using a new Mycena species)

  • 이효련;한무호;최미나;이효신;이석우;박응준
    • Journal of Plant Biotechnology
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    • 제44권1호
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    • pp.56-60
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    • 2017
  • 천마는 광합성 기능이 퇴화된 난과식물로 독립적인 생육이 불가능하다. 생장 단계에 따라 애주름버섯균(Mycena)과 뽕나무버섯균(Amillaria mellea)을 이용하여 유성증식법으로 생산한다. 본 연구에서는 신규 발아균주인 NIFOS101과 기존의 KFRI1212를 이용하여 천마종자의 발아효율과 원구경의 생장을 비교하였다. 두 균주를 낙엽미강배지에 접종한 후 천마 종자가 파종된 WA배지에 옮겨 배양하였다. 그 결과 NIFOS101과 KFRI1212를 이용한 발아율은 각각 94%와 70%이었으며, NIFOS101을 이용할 경우 KFRI1212에 비하여 원구경의 발달이 빠른 것으로 확인되었다. 또한 배양온도에 따른 균사의 생장력을 비교한 결과 NIFOS101이 KFRI1212 보다 균사의 생장이 빠른 것을 확인하였다. ITS 영역의 염기서열을 비교한 결과 애주름버섯속에서 NIFOS101은 붉은둘레애주름버섯과 유연관계가 높은 반면에 KFRI1212와는 유연관계가 낮은 것으로 나타났다. 본 연구에서는 천마의 신규 발아균으로 NIFOS101을 동정하고 천마의 기내 발아율 증진과 원구경의 생장 증진을 확인함으로서 향후 천마의 생산성을 높이는데 도움이 될 것으로 판단된다.

멸종위기 흰복주머니란 종자발아에 미치는 요인 분석 (Analysis of factors on the asymbiotic germination of white lady's slipper orchid(Cypripedium macranthos Sw. albiflorum))

  • 이정관;권영희;김희규;김경옥;박재성;정미진;손성원;서강욱
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2019년도 춘계학술대회
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    • pp.53-53
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    • 2019
  • Cypripediums, popularly called lady's slippers or moccasin flowers, are the showiest and most sought after hardy terrestrial orchids, collected and grown by orchid and alpine plant enthusiasts alike. In Korea, 4 species of cypripedium are reported as Cypripedium japonicum, C. macranthos, C. guttatum, and C. calceolus. We had already reported the feasibilities of C. macranthos and C. guttatum with in vitro germination methods from immature seeds. The seeds of white lady's slipper orchid (Cypripedium macranthos Sw. alba) were collected 65 days after pollination in 2018. The green pods were sterilized with flame and sowed immediately on the POM(Phytomax orchid maintenance media(R), Sigma) supplemented with BAP 0, 0.5, 1.0 mg/L and NAA 0, 1, 2mg/L. The germination of seed was observed 90 days after sowing, and the plantlets were subcultured to the same media according to the size of the protocorm with 1~2, 2~3, 3~4, 5~6, 7~8mm. The time of the subculture to the new media seems to be critical factors of forming rhizoids which is the hairy root of the cypripediums. As a results, the protorms of the white lady's slipper orchid was successfully germinated in the POM media supplemented BAP 0.5 and NAA 1.0 mg/L. The roots and rhizoids were formed in 5~6mm protocorms subculture over 95% survival ratio. We also tried to subculture to liquid medium without activated charcoal, however the browning or malformation of the roots was observed in the root. The formation of shoots from the protocorm was effectively enhanced in the POM media with non-additives of plant growth regulators. These results indicate the possibility of high and stable production and practical industrialization of endangered white lady's slipper orchids.

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