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Photo Diode Array형의 휴대용 근적외 분광기와 FT 근적외 분광기를 이용한 Hairless Mouse 피부 수분 정량
서은정,우영아,김효진,Suh, Eun-Jung,Woo, Young-Ah,Kim, Hyo-Jin 대한약학회 2005 약학회지 Vol.49 No.2
In this study, the performance of a portable NIR system and a FT NIR spectrometer were compared to determine water content of hairless mouse skin. The stratum corneum parts wer e separated from the epidermal tissues by trypsin solution. NIR diffuse reflectance spectra of hairless mouse skin were acquired using a fiber optic probe. In the near infrared, water molecules show two clear absorption bands at 1450 nm from first overtone of O-H stretching and 1940 nm from the combination involving O-H stretching and O-H deformation. It was found that the variations of O-H absorption band according to water content. Partial least squares regression (PLSR) was applied to develop a calibration model. The PLS model showed a good correlation between NIR predicted value and the absolute water content of separated hairless mouse skin, in vitro. For both the portable and the FT NIR spectrometer, These studies showed the possibility of a rapid and nondestructive skin moisture measurement using NIR spectroscopy. The portable NIR spectrometer with a photodiode arrays-microsensor could be more rapidly applied for the determination of water content with comparable accuracy with the performance of a FT spectrometer .
서은정(Eun-Jung Suh),한봉희(Bong Hee Han),이연희(Yeon-Hee Lee),이성곤(Seong-Kon Lee),홍준기(Joon Ki Hong),김경환(Kyung Hwan Kim) 한국원예학회 2015 원예과학기술지 Vol.33 No.6
To select suitable spray chrysanthemum cultivars for Agrobacterium-mediated transformation, thirty-nine (39) spray cultivars bred in the National Institutes of Korea and a standard cultivar Jinba from Japan were collected and tested for regeneration rate and Agrobacterium infection assays. MS medium with 0.5 ㎎·L<SUP>-1</SUP> IAA and 1.0 ㎎·L<SUP>-1</SUP> BAP was used for shoot regeneration from leaf disks and internodes. The shoot regeneration rate in leaf disks was the highest in cultivar BRM, followed by cultivars VS, WW and YTM. The cultivar JB (Jinba) used as a transformation material in previous reports ranked similarly to cultivars PK and SPP. In shoot regeneration from internodes, the shoot regeneration rate was the highest for cultivar PA, followed by cultivar WW. The infection rate of leaves and internodes of 40 chrysanthemum cultivars with agrobacterium was investigated. Cultivars WPP, YNW, VS, PP, WW, FA, PA and YMN showed the highest infection levels in leaves, whereas cultivars WPP, PA, PK and YNW had the highest infection levels in internodes. Considering all of these results, cultivars VS and WW were the most appropriate for gene transformation of chrysanthemum using leaves, while cultivar PA was for internodes.
아카풀코나리에서 Differential Slot Blot을 이용한 약발현 유전자 목록작성
서은정(Eun-Jung Suh),유희주(Hee Ju Yu),한봉희(Bong Hee Han),임용표(Yong Pyo Lim),정미정(Mi-Jeong Jeong),이성곤(Seong-Kon Lee),김동헌(Dong-hern Kim),장안철(An-Cheol Chang),예병우(Byeong Woo Yae) 한국원예학회 2013 원예과학기술지 Vol.31 No.5
Anther is the major organ of flower in responsible to reproduction and outward appearance. From anther- specific cDNA library of Lilium Oriental Hybrid ‘Acapulco’, 2000 expressed sequence tags were selected randomly. Differential slot blot analysis with cDNA probes from the anther and leaf was used to get antherexpressed clone and 570 non-redundant ESTs were obtained and sequenced. Compared to the GenBank database using BLASTX algorithm, 191 clones showed significant similarity but others (66.5%) did not measured to known sequence. Functional categories according to gene ontology (GO) annotation included sequence representing a significant portion of protein in cell and cell part respectively. A transcriptional analysis at 7 different organs and developmental stage was performed using northern blot with thirty ESTs as putative anther specific gene. This report suggest that selection of anther expressed clone using differential slot blot was considered as very effective tool and our current study can provide fundamental information on the lily anther including pollen furthermore.
생물반응기를 이용한 Lilium longiflorum ′Geogil′의 대량번식
한봉희,서은정,예병우,유희주,Han, Bong-Hee,Suh, Eun-Jung,Yae, Byeoung-Woo,Yu, Hee-Ju 한국식물생명공학회 2004 식물생명공학회지 Vol.31 No.3
자구를 형성 및 비대시키기 위하여 BA 0.5 mg/L와 IAA 0.5 mg/L가 첨가된 MS 배지에서 Lilium longiflorum 'Geogia'의 신초를 증식하였다. 증식된 신초 cluster를 5 L air lift 생물반응기에 배양하였다. 자구비대는 sucrose 60 g/L 및 1∼2배 사이의 MS 배지 염류농도에서 효과적이었다. 재료 투입량은 100 g을 투입하는 것이 자구형성 및 자구비대에 적절하였다. 배양방법은 air-lift 방법이 자구의 형성 및 비대를 촉진하였으며, 주입공기량은 200∼300 mL$.$$min^{-1}$을 주입하는 것이 자구비대에 효과적이었다. Shoot clusters were induced from bulb scales of Lilium longiflorum 'Geogia', and proliferated on medium containing 0.5 mg/L BA and 0.5 mg/L IAA. Thereafter, these shoot clusters were cultured in 5 L air-lift bioreactors to form and grow normal bulblets. Number of bulblets increased on medium with 30 g/L sucrose, but growth of bulblets was effective on medium with 60 g/L sucrose. The number of bulblets from shoot clusters had no differences, though bulblet growth was very effective on medium with between full and double strength of MS salts. The inoculation of 100 g shoot clusters as a cultural material was suitable for formation and growth of bulblets in 5 L bioreactors. Air-lift type was more effective for the formation and growth of bulblets than that in ebb and flood one, and 200∼300 mL$.$min$^{-1}$ injection of air was suitable in growth of bulblets.