• 제목/요약/키워드: In vitro roots

검색결과 364건 처리시간 0.031초

고생장 인삼 모상근의 선발 (Selection of Active Grow Hairy Root Lines in Ginseng)

  • 양덕춘;김용해;양덕조;민병훈;신성련;최광태
    • 식물조직배양학회지
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    • 제25권6호
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    • pp.525-530
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    • 1998
  • 인삼의 뿌리절편, 줄기, 엽병에 Agrobacterium을 접종하여 고생장 모상근을 선발하고자 수행하였다. 인삼 뿌리 절편에서 A. rhizogenes R1000과 A. rhizogenes $A_4$에 의하여 모상근이 유도되었으며, 인삼의 줄기 및 엽병에서도 모상근이 유도되었다. 유도된 모상근은 rolC및 virC DNA절편의 확인으로 형질전환체임을 확인하였으며, 균이 제거된 모상근을 선발하였다. 선발된 모상근 300 세포주중 성장과 형태적 특징이 뚜렷한 11 모상근을 선발하였다. 이들 모상근은 주근이 비후된 것, 주근이 가는 것, 측근의 돌기가 많은 것, 측근의 생장이 높은 것 등의 특징을 나타내었다. 이들 11 모상근중 주근이 가늘고 측근의 생장이 왕성한 형태가 모상근의 생장이 좋았으며, 주근이 비후되고 측근의 돌기가 많은 형태는 생장이 낮았다. 본 연구에서 인삼 뿌리절편으로부터 고생장 모상근인 KGHR-1, KGHR-5, KGHR-8을 선발하였다.

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소리쟁이 (Rumex crispus)의 부정근과 모상근 배양에 의한 Anthraquinone 생산성 (Anthraquinone Productivity by the Cultures of Adventitious Roots and Hairy Roots from Curled Dock (Rumex crispus))

  • 장석원;김인현;한태진
    • 식물조직배양학회지
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    • 제26권1호
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    • pp.7-14
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    • 1999
  • 형질전환된 소리쟁이 모상근의 기내 배양시 그 생장 특성과 anthraquinone생산성을 조사하기 위하여 소리쟁이의 모상근을 Agrobacterium rhirogenes strain $A_4$ 접종에 의하여 잎 절편으로부터 유기하여 부정근과 비교하였다. 잎 절편에서의 부정근 형성은 5 $\mu$M NAA를 첨가한 MS배지에서 가장 양호하였다. Paper electrophoresis를 통한 opine분석 결과 모상근에서만 mannopine이 검출되고 부정근에서는 검출되지 않았다. 부정근과 모상근 모두에서 2차근인 측근 근단은 호르몬을 첨가하지 않은 배지에서 신장만 할 뿐 분지하지 않았으나, 1차근인 주근의 근단은 많은 측지를 내며 빠르게 생장하였다. Anthraquinone 함량 증대에 따른 부정근과 모상근의 생장에는 MS기본 배지가 가장 양호하였다. 부정근과 모상근 배양시 생장량과 anthraquinone함량은 5% sucrose를 포함한 0.05 $\mu$M NAA와 0.1 $\mu$M kinetin으로 조성된 MS 액체 배지에서 가장 높은 것으로 나타났으며, 모상근의 anthraquinone함량은 배양 일수에 따라 증가하다가 배양 25일 이후에는 감소하였다.

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식물 추출물로 부터 3-hydroxy-3-rnethylglutaryl-Coenzyme A Reductase의 활성저해제 탐색 (In vitro screening of 3-hydroxy-3-methy1g1utaryl-Coenzyme A reductase inhibitor from plant extracts)

  • 이윤형;신용목
    • KSBB Journal
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    • 제6권1호
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    • pp.55-61
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    • 1991
  • The objective of this in vitro study is to screen a possible inhibitor, originated from some chinese herb medicines, of 3-hydroxy-3-methylglutaryl Coenzyme A (HMG-CoA) reductase that is the major regulatory enzyme of hepatic cholesterol biosynthesis. Fourteen kinds of herbal plant were extracted with water and evaporated for prescreening. The methanol extracts of the effective 3 kinds (9 species) were fractionated with chloroform, ethylacetate, butanol and water, and vacuum evaporated. The degree of inhibition of the extracts to HMG-CoA reductase activity was calculated by the spectrophotometric method using microsomal protein of Saccharomyces cerevisiae ATCC 42949 as an enzyme source. Among these samples, marked inhibitory effects were observed in the extracts of ethylacetate and chloroform fractions of the Rosa rugosa roots, and those of butanol, ehtylacetate and water fractions of pine leaves. Also, the inhibitory effects of the extracts obtained from buckwheat shell and the roots of Rosaceae were found.

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Puerarol from the Roots of Pueraria lobata Inhibits the Formation of Advanced Glycation End Products (AGEs) in vitro

  • Kim, Jong-Min;Jang, Dae-Sik;Lee, Yun-Mi;Kim, Young-Sook;Kim, Jin-Sook
    • Natural Product Sciences
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    • 제14권3호
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    • pp.192-195
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    • 2008
  • Three known compounds, puerarol (1), pueroside B (2), and ononin (3), were isolated from an EtOAc-soluble fraction of the roots of Pueraria lobata. The isolates (1 - 3) were subjected to an in vitro bioassay to evaluate their inhibitory activity on the formation of advanced glycation end products (AGEs). Puerarol (1) exhibited a remarkable inhibitory activity on AGEs formation with $IC_{50}$ value of $2.05{\pm}0.32{\mu}M$ as compared with positive control, aminoguanidine ($IC_{50}$ value : $905.32{\pm}7.58{\mu}M$).

기내증식된 지황묘의 기내 및 기외 발근 (In Vivo and In Vitro Rooting of Rehmannia glutinosa Plantlet Regenerated in Vitro)

  • 백기엽;유광진;박상일
    • 식물조직배양학회지
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    • 제24권6호
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    • pp.335-340
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    • 1997
  • 기내에서 증식된 다수의 지황(Rehmania glutinosa)신초를 가장 효율적으로 발근시키기 위해서 기내 및 기외발근 실험을 수행하였다. 오옥신의 종류와 농도를 달리하여 신초와 마디조직을 배양해본 결과 발근율은 거의 100%에 달하였으며 IAA 0.5~1.0 mg/L 처리구에서 절편체당 뿌리형성수가 가장 많았다. 배지내 당의 농도가 증가할수록 신초의 생장은 현저히 감소하였으나 발근율은 100%에 달하였고 형성된 뿌리의 굵기가 커지는 경향이였다. paclobutrazol과chloromequat를 처리해본 결과 마디나 신초조직에 관계없이 발근율은 거의 100%에 달하였으며 절편체당 근형성수도 억제제의 농도에 크게 영향을 받지 않았으며 신초조직에서는 5~7개, 마디조직에서는 3.5~5.0개가 형성되었다. 기외발근시에는 100ppm의 IBA용액에 15분~시간 침지처리하는 것이 타 농도보다 절편체당 근형성수가 증가하였다. 분말로된 발근촉진체를 이용한 경우 신초기부 절단면에 IBA 0.1%를 분말처리하여 버미큘라이트와 퍼얼라이트가 1:1로 혼합된 삽목상에 삽목하는 것이 생존율 및 발근율이 100%에 달하였다.

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카사바 액아배양 시 배지조성이 기내 식물체 발근에 미치는 영향 (Effect of Medium Composition on in vitro Plant Root Regeneration from Axillary Buds of Cassava (Manihot esculenta Crantz))

  • 권영희;최원일;김희규;김경옥;김주형;송용섭
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2021년도 춘계학술대회
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    • pp.24-24
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    • 2021
  • The Cassava (Manihot esculenta Crantz) is one of the major food crops in the tropical or subtropical regions. Recently, clean planting materials of improved cassava cultivars are in high demand. Problems in the propagation of cassava are virus vulnerable and low rates of seed germination. Thus, the study was undertaken to develop an efficient in vitro mass propagation protocol of Manihot esculenta Crantz. So we tried to optimize protocols for mass production from axillary buds of Cassava. Young and actively growing stem segments were excised from adult plants of cassava. Samples were cut into a 3~4 cm nodal segments with axillary buds, and cultivated in the different medium supplemented with various plant growth regulators for 4 weeks. For shoot multiplication, axillary buds approximately 1 cm in length were taken from in vitro derived shoots and subcultured. After 4~6 weeks, the shoot generation rate showed 55.6%. The shoot number and its length was 1.0/explant and 2.3 cm in the most favorable medium composition. The auxin β-indolebutyric acid(IBA) 0~2.0 mg/L was proved to be effective on root development. Plantlets with fibrous roots easily generated tuberous roots in vitro. The tuberous roots were induced only when both kinetin and IBA were used in combination. after 8 weeks, the root generation rate showed 100%. The root number and its length was 17.2/explant and 2.2 cm in the most promising medium composition. Our experiments confirmed that in vitro growth and multiplication of plantlets could depend on its reaction to the different medium composition, and this micropropagation techniques could be a useful system for healthy and vigorous plant production.

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Comparison of Bioactive Compounds and Antioxidant Activity according to Culture Systems in Artemisia fukudo

  • Eun Bi Jang;Jong-Du Lee;Hyejin Hyeon;Yong-Hwan Jung;Weon-Jong Yoon
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2022년도 추계학술대회
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    • pp.99-99
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    • 2022
  • Artemisia fukudo is a biennial plant and has been reported to have anticancer, anti-melanogenesis, and anti-inflammatory effects. However, it is difficult to produce biomass from A. fukudo, so it is not used as a material for cosmetics or pharmaceuticals. In vitro culture can stably produce biomass throughout the year. In this study, the culture system for producing the highest biomass and bioactive substances was compared. Ex vitro plants were collected in Pyoseon-eup, Jeju island in May 2021, and in vitro culture was harvested after culturing for 8 weeks (plantlet) and 4 weeks (adventitious roots), respectively. After harvest, total polyphenol content (TPC), total flavonoid content (TFC), and DPPH scavenging activity were analyzed. In biomass production, adventitious roots (FW: 5.1 g·100 ml-1, DW: 0.6 g·100 ml-1) were about 4 times higher than that of plantlets (FW: 1.8 g·200 ml-1, DW: 0.3 g·200 ml-1). Both TPC and TFC were highest in ex vitro plants (9.2 ㎍·mL-1, 31.6 ㎍·mL-1), and were 3.0 times and 1.8 times higher than those of plantlets (3.0 ㎍·mL-1, 17.8 ㎍·mL-1), respectively. The IC50 value of DPPH scavenging activity was also the best in ex vitro plants (69.8 ㎍·mL-1), followed by root root (184.4 ㎍·mL-1) and plants (325.3 ㎍·mL-1) in that order. Through additional elicitor treatment, scale-up, and advanced compounds analysis such as HPLC, it can be used as an industrial material.

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백하수오(白何首烏)의 항산화활성(抗酸化活性)과 amino acid의 분포(分布)에 관한 실험적(實驗的) 연구(硏究) (Study on the Antioxidative Effects and Amino Acid Contents of the Roots of Cynanchum Wilfori)

  • 한기선;신길조;이원철;이종형
    • 대한한방내과학회지
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    • 제19권2호
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    • pp.411-430
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    • 1998
  • The aim of the presents study is to investigate and compare the antioxidative effects and qualities of the cultivating root of Cynanchum Wilfori, which is increasingly used in recent days, with those of the wilding root, which has mainly been used in the past in oriental medicine for a tonic and also for prevention and treatment of various geriatric diseases including aging progress. For comparison of their antioxidative effects, the activities of the total extracts on lipid peroxidation and the activity of aldehyde oxidase(EC 1.2.3.1) as well as xanthine oxidase(EC 1.2.3.2) were investigated in vitro. In addition, their inhibitory effects on the activity of 5-lipoxygenase, which is known to induce inflammation and concerned with free radicals, were also determined in vitro. Furthermore, the amino acid contents of both roots were analyzed in order to compare their qualities. The results are as follows: 1. The wilding root inhibited significantly the activity of 5-lipoxygenase, showing five times more portent than the cultivating root. 2. Both of the wilding root and the cultivating root inhibited aldehyde oxidase activity in a dose-dependant manner. The wilding root was more effective than the other. 3. Both of the wilding root and the cultivating root dose-dependently suppressed lipid peroxidation in rat brain, kidney, and liver. 4. The anti-peroxidative effects of both roots appeared to be most strong in brain and least in liver. In particular, the cultivating root exhibited a significant inhibition on brain lipid peroxidation. 5. The cultivating root contained 15 amino acids including five essential amino acids in contrast with the less contents in the wilding root.

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Rapid Propagation through Tissue Culture of Cudrania tricuspidata, Medicinal Plant

  • Lee, Cheul-Ho;Min, Ji-Yun;Jung, Ha-Na;Kim, Kyu-Sick;Choi, Myung-Suk
    • 한국약용작물학회지
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    • 제15권5호
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    • pp.315-318
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    • 2007
  • An effective rapid propagation method was established through in vitro cultures of the medicinal plant, Cudrania tricuspidata. In vitro plantlets were obtained from in vitro germinated seeds. The various levels of cytokinins (BAP, Kinetin and TDZ) were tested on multiple shoot formation from plantlets. BAP (1.0 mg/l) treatment induced highest number of multiple shoots. Single shoot cultures gave higher initial shoot numbers than 5 shoots per culture. Among the various culture media, the shoot elongation was optimal on 2 MS basal medium without growth regulators. The IAA (2.0 mg/l) treatment induced highest number of roots. IBA (2.0 mg/l) treatment more promoted in vitro root growth than other concentrations. Rooted shoots were transferred directly to small pots with an artificial soil and successfully acclimatized.

하늘타리 형질전환근의 생장 및 Trichosanthin의 생합성을 위한 최적화 (Optimal Culture Conditions for Transformed Root Growth and Trichosanthin Formation in Trichosanthes kirilowii Max.)

  • 황성진;나명석
    • 한국약용작물학회지
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    • 제15권1호
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    • pp.46-50
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    • 2007
  • 하늘타리 (Trichosanthes kirilowii)로부터 조직배양 기법을 이용하여 약리작용을 나타내는 생리활성물질인 trichosantin을 생산하기 위한 연구로 Agrobacterium rhizogenes ATCC15834 의 감염을 통하여 기내 배양된 유묘의 잎절편으로부터 형질전환 모상근을 유도하였다. 유도된 모상근 clones으로부터 성장속도와 분지화 정도가 빠르며 단백질 합성능이 가장 우수한 TR-03 clones을 선발하였으며, 이를 사용하여 생체량과 배지내 가용성 단백질의 생산을 최대로 높일 수 있는 최적 배양조건을 조사하였다. TR-03 clone을 4% sucrose가 첨가된 MS 배지에 초기 접종농도 2 g (생중량)을 접종하여 100 rpm으로 배양시 생중량과 배지내 가용성 총단백질의 함량이 플라스크당 약 2.4 g (건중량)과 $28.3ug/\ell$으로 최대치를 나타내었다. 한편, 배지내 가용성 단백질에 대한 RIP활성 검정에서 배양 4주 후 21.3 unit로 최대치를 보였다.