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Agrobacterium rhizogenes 에 의하여 유도된 도라지 ( Platycodon grandiflorum DC. ) Hairy Root 의 배양
김병로(Byung Ro Kim),이재혁(Jae Hyuk Lee),황백(Baik Hwnag) 한국식물학회 1990 Journal of Plant Biology Vol.33 No.3
Induction and culture of hairy roots by Agrobacterium rhizoenes A_4 were carried out in Platycodon grandiflorum DC. After 2-4 weeks of inoculation with Agrobacterium rhizogenes hairy roots were formed at root segments in the balloon flower. Optimized growth of hairy roots was obtained in hormone-free MS medium, 6% sucrose and pH 5.8. The pattern of ginsenoside in the transformed roots was not different with that in the ordinary roots.
김민지 ( Min-ji Kim ),서정욱 ( Jeong-wook Seo ),김병로 ( Byung-ro Kim ) 한국목재공학회 2018 목재공학 Vol.46 No.1
본 연구는 우리나라에서 주요 용재로 사용되고 있는 소나무의 생장지역에 따른 해부학적 특성을 조사하기 위하여 실시하였다. 지역 간 비교를 위해 태백산맥을 기준으로 영동(고성), 영서(홍천), 영남(봉화) 세 지역을 선정하였다. 같은 연도에 형성된 연륜을 사용하기 위해 연륜연대학의 크로스데이팅법으로 벌채연도를 분석한 결과, 고성, 홍천 및 봉화 산 목재의 벌채연도가 각각 2014, 2012, 2014년으로 나타났다. 분석된 벌채연도를 토대로 각 지역에서 채취된 소나무의 미성숙재(수부터 20번째 연륜까지), 심재(연륜 생성연도: 1955∼1964y), 변재(연륜 생성연도: 2002∼2011y)를 대상으로 가도관 길이와 직경을 측정하였다. 산지 간 가도관 길이는 미성숙재에서는 차이를 보이지 않았으나 심재와 변재부에서는 봉화, 홍천 고성 산 순으로 나타났다. 가도관 직경의 경우도 봉화 산이 높게 나타났다. 가도관 길이의 방사방향변이는 약 20년 전후에 증가하다가 안정되는 경향을 보였다. 현미경을 이용한 목재해부학적 관찰에 따르면 세 지역 모두 전형적인 소나무의 특성을 보였다. This study was fulfilled to investigate the anatomical characteristics according to provinces. In order to compare anatomical characteristics between provinces we selected Goseong, Hongcheon, and Bonghwa as experimental sites. To use the tree rings formed at the same years we dated all tree rings by cross-dating method used in dendrochronology and the cutting years were successfully dated in 2014, 2012, and 2014 for woods from Goseong, Hongchen, and Bonghwa, respectively. Based on the cutting years tracheid lengths and widths were measured considering juvenile wood (tree rings between the pith and first 10 years), heartwood (tree rings formed between 1955 and 1964), and sapwood (tree rings formed between 2002 and 2011). According to the results about differences between tracheid lengths from three provinces, juvenile wood did not show a difference, statistically, but heartwood and sapwood showed differences as the tracheid lengths following Bonghwa, Hongcheon, and Goseong. Bongwha also showed the largest value in the trachied width among three provinces. The tracheid lengths in the radial direction increased up to around the first 20 years, and then they showed stabilized. All wood samples showed typical Korean red pine’s characteristics in anatomical observation under a light microscope.
김민지(Min Ji Kim),김병로(Byung Ro Kim) 한국펄프·종이공학회 2017 펄프.종이技術 Vol.49 No.2
To efficient use of Amur cork tree (Phellodendron amurense Rupr.), wood anatomy was investigated. Vessel arrangement of amur cork tree was ring-porous structure, but small vessel in latewood was diffuse-porous structure. Big vessels of 2 or more in radial pore multiple were present in earlywood pore zone. The length of vessel elements was longer in earlywood than latewoo, but there was no difference in diameter of vessel elements. The length of wood fiber was longer in latewood than earlywood, which opposite trend compared with vessel length. There was no difference in the lengths of vessels elements from juvenile and mature wood. Earylwood was composed with wood fiber (52%) and vessel elements (37%) as main component with ray cell (11%) as minor component, but latewood main component was wood fiber( 85%) with vessel element (6%) and ray cell(9%) as minor component. Due to higher wood fiber and lower vessel element in Amur cork tree, it is useful for papermaking raw material.
김춘규(Choon Kyu Kim),권국환(Kuk Hwan Kwon),박정수(Cheong Soo Park),김병로(Byung Ro Kim) 대한소화기학회 1984 대한소화기학회지 Vol.16 No.1
N/A Ulcerative colitis is a diffuse inflammatory disease of the mucosal lining of the colon and rectum without apparent cause. Ulcerative colitis is relatively frequent in the western countries but is extremely rare in Korea. This report is an analysis of 26 cases of ulcerative colitis which treated in the Yonsei Medical Center from Jan. 1970 to Aug. 1983. The results were as following: 1) The most prevalent age group was 5th decade and male to female ratio was 1.36:1%. 2) The most common clinical manifestation was bloody diarrhea. 3) According to the ariatomical site of the lesion, pancolitis was most common but proctitis was relatively rare than other reports. 4) By medical treatment, improvement was noted in 68.2%. 5) Operations were performed in 8 cases, and its indications were intractability 1 case, massive bleeding 1 case, suspected carcinoma 2 cases, toxic megacolon 2 cases and perforation 2 cases. 6) Postoperative mortality was 62.5% but all of the 5 cases, treated by emergency, were died and all of the 3 cases, treated by elective operation, were survied. 7) Cause of death was sepsis in all.