• 제목/요약/키워드: cultured media

검색결과 1,133건 처리시간 0.03초

뽕나무 화아의 기내배양에 있어서 생장조절물질이 기관분화에 미치는 영향 (Effects of Plant Growth substances on Organ Regeneration from in virto cultured Flower Buds of Mulberry(Morus alba L., Morus bombycis Koidz.))

  • 남혁우;문재유;김호락
    • 한국잠사곤충학회지
    • /
    • 제30권1호
    • /
    • pp.1-7
    • /
    • 1988
  • 뽕나무의 화아의 기내배양을 실시할 경우 배지종류 및 생장조절물질의 농도가 각 기관의 생장 및 분화에 미치는 영향을 조사한 결과를 요약하면 다음과 같다. 1. Murashige and Skoog 배지는 Greshoff and Doy 및 Wolter and Skoog 배지에 비하여 자웅화아의 생장에 양호한 결과를 나타내었으며 자화의 성장은 2.0ppm BAP 농도에서 양호하였다. 2. 자화 및 웅화의 화아를 가지고 있는 삽수를 7일간 삽목하여 발아시킨 후 배양한 구가 삽목을 하지 않고 직접 치상한 구보다 화아의 발육이 양호하였다. 3. 고농도 Kinetin과 저농도 IAA를 혼용 첨가한 M.S. 배지에서 생장이 양호하여 발화되었고 건전한 주두 및 약을 얻을 수 있었다.

  • PDF

Cryopreservation of Embryo by Concentration of Ethylene Glycol and Day 6, 7, 8, 9 Embryo in Korean Native Cattle (Hanwoo)

  • Park, Joung-Jun;Yoo, Han-Jun;Choi, Hye-Won;Cheong, Ki-Soo;Kim, Ji-Tae;Park, Choon-Keun;Yang, Boh-Suk
    • 한국수정란이식학회지
    • /
    • 제27권4호
    • /
    • pp.253-258
    • /
    • 2012
  • This study was carried out to effects of ethylene glycol concentration, sucrose and culture day of in vitro production embryo on slow-down freezing in Hanwoo. 6, 7, 8 and 9 day embryos produced in vitro were frozen using 1.8M EG+0.1M sucrose, 1.8M EG+0.5% BSA and 1.5M EG+0.1M sucrose media. Survivability was confirmed after frozen-thawed 24 and 48h and ICM, TE cell number were counted by Hoechst 33342 and PI staining after frozen-thawed 24h. As a result, 1.8M EG+0.1M sucrose group was most significantly (p<0.05) higher compared with the other treatment groups on survivability, TE and total cell number after frozen-thawed 24h ($94.2{\pm}2.6%$, $94.67{\pm}3.4$ and $129.67{\pm}5.5$). ICM number did not found significant (p<0.05) differences between the three treatment groups. in 6, 7, 8 and 9 day of embryos using three types of freezing media, frozen-thawed, 1.8M EG+0.1M sucrose groups with embryos cultured 8 day was significantly (p<0.05) highest survivability to $98.3{\pm}1.7%$ after frozen-thawed 24h. 1.5M EG+0.1 sucrose group with embryos cultured 9 day was significantly higher survivability than group of embryos cultured 8 day after frozen-thawed 24 and 48h. In conclusion, 1.8M EG+0.1M sucrose media is considered to be effective to cryopreservation of embryos cultured 8 and 9 day.

천연물을 이용한 큰느타리 균사배양 및 Angiotensin Converting Enzyme 저해활성 (Mycelial Growth Using the Natural Product and Angiotensin Converting Enzyme Inhibition Activity of Pleurotus eryngii)

  • 강태수;정헌상;이명렬;박희정;조택상;지성택;신명근
    • 한국균학회지
    • /
    • 제31권3호
    • /
    • pp.175-180
    • /
    • 2003
  • 새로운 건강기능성 식품소재를 개발하고자 현미, 가시오가피 및 인진쑥을 기질로 하여 큰느타리버섯 균사의 고체배양 조건을 검토하였으며, 배양산물의 성분분석 및 추출물의 ACE 저해 활성을 조사하였다. 가시오가피와 인진쑥을 현미배지에 첨가시 농도가 증가함에 따라 균사의 생육속도는 감소하였으며, 특히 가시오가피의 첨가가 인진쑥에 비해 큰느타리 균사의 생육에 미치는 영향이 컸다. 배양산물의 성분분석 결과, 수분함량은 $10.9{\sim}12.0%$ 범위이었고, 조단백질, 지질 및 섬유질은 현미배지에서 가장 높았으며, 무기질(칼슘, 칼륨 및 인) 함량은 가시오가피 첨가배지가 가장 높았다. 추출수율은 인진쑥 첨가배지가 4.80%로 가장 높았으며, 추출물의 pH는 현미배지가 pH 6.1로 가장 낮았다. 세가지 시료 추출물의 명도는 $85.8{\sim}87.1$ 범위이었고, 적색도는 현미와 가시오가피 첨가배지가 높았으며, 반면, 황색도는 인진쑥 첨가배지가 가장 높았다. 당 성분을 thin layer chromatography로 분석한 결과, 세가지 시료 모두 2개의 spot가 검출되었고, 이들은 각각 glucose와 maltose로 판단되었다. Angiotensin converting enzyme에 대한 저해율을 측정한 결과, 가시오가피 첨가배지가 시료농도 $0.2{\sim}1.0\;mg/ml$에서 가장 높은 활성을 나타내었다.

FAME Analysis to Monitor Impact of Organic Matter on Soil Bacterial Populations

  • Kim, Jong-Shik;Joo, Jin-Bee;Weon, Hang-Yeon;Kang, Chang-Seong;Lee, Si-Kyung;Yahng, Chahng-Sool
    • Journal of Microbiology and Biotechnology
    • /
    • 제12권3호
    • /
    • pp.382-388
    • /
    • 2002
  • In order to assess the effects of organic fertilizer on soil microbial community structure and diversity in the greenhouse fields, fatty acid methyl ester (FAME) was analyzed by the MIDI (Microbial ID, Inc., Newark, DE, U.S.A.) system and enumerations were performed. In relation to bacterial division of each sample, low GC Gram-positive bacteria were predominant among bacteria cultured on aerobic bacteria media. On the other hand, alpha subdivision was predominant on proteobacteria of control and OM (organic matter) 1 treated plot, and Flavobacterium spp. existed in OM2 plot on crystal violet media of all samples. Shannon-weaver Index (H) of OM1 plot varied most by 1.9 and 5.0 among bacteria cultured on aerobic bacteria media and crystal violet media, respectively. Our results revealed that addition of the organic wastes to soil led to a highly diverse microbial community, but the excessive amounts of organic and mineral fertilizer applied in the greenhouse fields produced excess nutrients in soil and led to simplification on bacterial populations.

Role of Advanced Glycation End Products in TGF-β1 and Fibronectin Expression in Mesangial Cells Cultured under High Glucose

  • HA Hunjoo;KIM Hwa-Jung;LEE Hi Bahl
    • Biomolecules & Therapeutics
    • /
    • 제13권3호
    • /
    • pp.190-197
    • /
    • 2005
  • Advanced glycation end products (AGE) have been implicated in the pathogenesis of diabetic complications including nephropathy. However, the role of AGE in the activation of mesangial cells cultured under high glucose has not been elucidated. The effects of aminoguanidine, which prevents formation of AGE and protein cross-linking, on the synthesis of $TGF-{\beta}1$ and fibronectin by rat mesangial cells cultured under high glucose for 2 weeks were examined and compared with the effects of $N^G$-nitro-L-arginine methyl ester (NAME), a selective nitric oxide synthase inhibitor, because aminoguanidine also inhibits the inducible nitric oxide synthase. Culture of mesangial cells in 30 mM (high) glucose for 2 weeks induced 1.5-fold (ELISA) and 1.9-fold (Western blot analysis) increase in AGE in the culture media compared to 5.6 mM (control) glucose. Northern blot analysis revealed 1.5-fold increase in $TGF-{\beta}1$ and 1.7-fold increase in fibronectin mRNA expression in cells cultured under high glucose compared to control glucose. Increases in mRNA expression were followed by increased protein synthesis. Mink lung epithelial cell growth inhibition assay revealed 1.4-fold increase in $TGF-{\beta}1$ protein in high glucose media compared to control. Fibronectin protein also increased 2.1-fold that of control glucose by Western blot analysis. Administration of aminoguanidine suppressed AGE formation in a dose dependent manner and at the same time suppressed $TGF-{\beta}1$ and fibronectin synthesis by mesangial cells cultured in both control and high glucose. In contrast, NAME did not affect high glucose-induced changes. These findings support a role for AGE in high glucose-induced upregulation of $TGF-{\beta}1$ and fibronectin synthesis by mesangial cells.

The Effects of Donor Cell Type and Culture Medium on in vitro Development of Domestic Cat Embryos Reconstructed by Nuclear Transplantation

  • Fahrudin, Mokhamad;Otoi, Takeshige;Karja, Ni Wayan Kurniani;Murakami, Masako;Suzuki, Tatsuyuki
    • Asian-Australasian Journal of Animal Sciences
    • /
    • 제14권8호
    • /
    • pp.1057-1061
    • /
    • 2001
  • In this study we explored the possibility of performing nuclear transfer in the domestic cat and assessed the ability of different culture media to support in vitro development of reconstructed cat embryos. Donor somatic cells were derived from cultured cumulus cells or explants of oviduct tissue, and recipient cytoplasts from in vitro matured oocytes. A higher percentage of cleavage (84.6% and 86.5%) and development to the morula stage (35.9% and 44.2%) was found when reconstructed embryos receiving cumulus or oviduct cells were cultured in MK1 medium, compared with those cultured in CR1aa (58.7% and 72.5%, 13.8% and 13.6%, respectively). There was no significant difference between MK1 and CR1aa media with respect to the proportion developing to the blastocyst stage (15.4% and 17.3% vs 6.8% and 8.6%, respectively, p>0.05). There was no significant effect (p>0.05) of donor cell type (cumulus and oviduct cells) on the rates of fusion (65.0% and 52.5%), cleavage (84.6% and 86.5%), development to the morula (35.9% and 44.2%), and blastocyst (15.4% and 17.3%) stages when reconstructed embryos were cultured in MK1 medium. Similar results were found for the reconstructed embryos cultured in CR1aa medium. These results show that culture medium has a significant impact on the early development of reconstructed cat embryos, whereas donor cell type does not have a significant effect.

베큘로 바이러스 발현 시스템에 의한 곤충세포에서의 인간 트롬보포이에틴 생산 최적화 (Optimization of Human Thrombopoietin Production in Insert Cells Using Baculovirus Expression System)

  • 고여욱;손미영;박상규;안혜경;박승국;박명환;양재명
    • KSBB Journal
    • /
    • 제13권2호
    • /
    • pp.181-186
    • /
    • 1998
  • 부착의존성 세포주인 Trichoplusia ni 의 유래의 BTI-TN5B1-4 (TN5) 곤충세포주를 이용하여 인간 혈소판생성축진인자인 재조합 인간 트롬보포이에틴(rhTPO)의 배양조건 최적화 연구를 수행하였다. 배양배지, 세포감염에 투입되는 재조합 베큘로바이러스와 숙주세포의 비율(MOI),세포감염시 세포밀도, 배지 회수시간 및 배양방법 등이 rhTPO 의 생산에 미치는 효과를 연구하여 60 mm dish로 정체 배양시 10 MOl 이상,$2\times10^6$ cells 의 세포밀도,바이러스 감염 후72 시간에서 rhTP0 의 최대 발현양 (약 12 mg/L)을 나타내었다. 배양 배지로서는 EXCELL FIVE 배지가 SF900II나Insect serum free media-1 Figure 5. Effect of growth phases on rhTPO production. TN5 cells were grown as suspension culture in 1 L spinner flask with 200 mL of SF900II serum free medium at 80 rpm. The cells were infected with AcBac404-2 at MOl of 1. Culture medium was collected at given time intervals and the expression level of rhTPO was analyzed by ELISA (A) or immunoblot analysis (B). Lanes 1 and 7; cell density of $0.6\times10^6$ cells/mL, lanes 2 and 8; cell density of $1.6\times10^6$ cells/mL, lanes 3 and 9; cell density of $2.0\times10^6$ cells/mL, lanes 4 and 10; cell density of $3.0\times10^6$ cells/mL, lane M; prestained molecular weight marker (Bio-Rad). Lanes 1, 2, 3, and 4; culture medium was collected at 48 hpi and lanes 7, 8, 9, and 10; culture medium was collected at 72 hpi. Figure 6. Effect of culture media on rhTPO production. TN5 cells grown with different culture media were infected with AcBac-404-2 at 10 MOL 10$\mu$L of culture medium was run on SDS-PAGE and Immunoblot analysis was performed. Lane ];TN5 cells cultured with SF900II serum free media(Gibco),and lane 3; TN5 cells cultured with EXPRESS FIVE serum free media (Gibco) 에 비해 더 증가된 발현양을 나타내었다. TN5 세포주를 0.2 L 규모 (1 L spinner flask)oJl에서 세포간의 응집현상 없이 부유배양에 적응,배양시킨 후 세포성장 시기에 따른 발현을 조사한 결과 1 MOI의 감염조건 하에서는 $0.6\times10^6$cell/mL의 early exponential시기의 세포밀도에서 72시간 배양하였을 대 최대 발현양을 나타내었다. 나타내었다.

  • PDF

Changes in Cell Cycle-related Genes Expression of Chineses Hamster Ovary Cells cultured using Serum-free Media

  • Seo, Sung-Keum;Park, Hong-Woo;Choe, Tae-Boo
    • 한국생물공학회:학술대회논문집
    • /
    • 한국생물공학회 2003년도 생물공학의 동향(XIII)
    • /
    • pp.153-158
    • /
    • 2003
  • The genome-wide program of gene expression during the cell division cycle response to serum free media in chinese hamster ovary(CHO) cells was characterized using cDNA microarrays. Many transcripts of genes showed variation during the cell cycle. Characterization is critical step toward understanding the basic cell cycle processes and serum-free media role in CHO cells

  • PDF

Ebb & Flow 시스템에서 기린초 분화재배에 적합한 배지 선발 (Optimum Media of Sedum kamtschaticum for Pot Culture in an Ebb & Flow System)

  • 김수정;장동칠;서종택;이응호
    • 화훼연구
    • /
    • 제16권3호
    • /
    • pp.205-210
    • /
    • 2008
  • 본 연구는 ebb & flow 방식에서 기린초를 분화재배할 때 적당한 배지를 선발하기 위한 것으로서 분화용 양액 (Sonneveld액)을 관주한 후 생육과 양분흡수특성을 분석하였다. 피트모스와 펄라이트를 5:5 또는 7:3(v/v)으로 혼합한 배지는 코이어와 펄라이트를 동일한 비율로 혼합한 상토보다 가비중과 건물함량은 높았지만 수분함량은 낮았고 그 밖의 물리적 특성은 차이가 없었다. 피트모스 혼합 배지는 코이어 혼합 배지보다 pH는 낮고(5.4) EC는 높으며 ($0.3dS{\cdot}m^{-1}$), $NH_4-N$, $NO_3-N$, K, Ca의 함량이 많아서 기린초의 초장, 엽장, 분지수 등의 생육이 촉진되었다. 반면 코이어 혼합 배지는 양분함량, 특히 질소 함량이 낮아서 배양액을 공급하더라도 생육이 저조하였다. 그러므로 기린초의 분회용 배지는 피트모스와 펄라이트를 혼합한 것이 좋으며 최적 혼합 비율은 7:3과 5:5(v/v)가 모두 적당한 것으로 판단되었다.

NCSU-23과 PZM 배양액내 첨가된 Macromolcule이 돼지 체외수정란의 발육에 미치는 영향 (Effect of Macromolecules Supplemented to NCSU-23 and PZM Culture Media on in vitro Development of Porcine Embryos)

  • 김수;이소현;김대영;강성근;이병천;황우석
    • 한국수정란이식학회지
    • /
    • 제18권1호
    • /
    • pp.35-41
    • /
    • 2003
  • 본 연구에서 배양액 내 첨가된 macromolecule이 돼지 체외수정란의 체외 발달율에 미치는 영향과 배양소적 내 첨가된 FBS가 후기배발달에 미치는 영향에 대하여 알아보았다. 이에 대한 결과를 요약 하면 다음과 같다. 1. NCSU-23을 기본 배양액으로 사용시 BSA (4mg/ml), FBS (10%), PVA (3 mg/ml)가 각각 첨가되었을 경우 배발달에 큰 차이를 보이지 않았다. 2. PZM을 기본 배양액으로 사용시 BSA (4mg/ml)가 첨가하였을 경우 2-세포 수정란 발달율과 배반포 발달율이 가장 높았으며, 이것은 NCSU-23에 비하여 PZM 배양액에는 후기배의 에너지원으로 사용하는 글루코스가 포함되어 있지 않기 때문으로 사료 된다. 본 연구를 통하여 돼지 수정란의 체외배양에 사용되는 배양액은 종류와 조성에 따라 적절한 macromolecule이 첨가되어 초기배와 후기배의 발달을 모두 촉진시킬 수 있어야 함을 알 수 있었다.