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벼 흰잎마름병균(Xanthomonas oryzae pv. oryzae)의 병원성 유전자의 분자유전학적 연구현황 및 비교유전체 분석
강희완,박영진,이병무,Kang, Hee-Wan,Park, Young-Jin,Lee, Byeong-Moo 한국미생물학회 2008 미생물학회지 Vol.44 No.1
본 논문은 벼 흰 잎마름병균인 Xanthomonas oryzae pv. oryzae(Xoo)의 병원성 유전자의 분자유전학적 연구현황을 기술하고자 한다. 또한 국내 고유 벼 흰 잎마름병균 KACC10331의 유전체해독 정보를 기반으로 다른 Xanthomonas의 유전체와 비교 분석함으로써, Xoo의 주요 병원성 유전자의 분자구조를 구명하고자 한다. 이를 통해 Xoo 고유 병원성 유전자 탐색 및 기능 해석을 위한 기초자료를 제공하는데 목적이 있다. Xoo 유전체에는 5개 과(family)에 속하는 9 type의 Insertion sequence(IS)가 611 copy로 존재하고 있으며, 주로 병원성 관련 유전자군 주위에 많이 분포하고 있는 것으로 나타났다. 현재까지 연구가 수행된 주요 병원성 관련 유전자인 hypersensitive response and pathogenicity (hrp) 유전자, extracellular polysaccharide (EPS) 유전자, extracellular enzyme 유전자, lipopolysaccharides (LPS) 유전자, 그리고 avilulence 유전자의 분자유전학적 연구현황을 기술하였다. Xanthomonas oryzae pv. oryzae (Xoo) is the causal agent of bacterial blight on rice. In this paper, current status on molecular genetic study of major virulence genes, hypersensitive response and pathogenicity (hrp), productions of extracellular polysaccharide (EPS), extracellular enzymes and lipopolysaccharides (LPS), avr genes were reviewed. The IS elements with 611 copies including 133 ORF IS were inserted in various regions of the Xoo genome and in expecially regions franking virulence genes. Whole genome sequence of X. oryzae pv. oryzae KACC10331 were used for defining genetic organization of the virulence genes. Futhermore, the virulence genes in Xoo genome were compared to those of other Xanthomonas species in Blast GenBank data base.
100 kg/day 액화수소 제조시설용 Ortho-Para 변환기의 설계 및 성능평가
양성민(Seong Min Yang),박주형(Joo Hyoung Park),이병무(Byeong Moo Lee),김서영(Seo Yong Kim),홍동희(Dong Hui Hong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
This Ortho-Para hydrogen converter was designed for application to actual hydrogen liquefaction facility. The conversion device converts Ortho hydrogen into Para hydrogen after heat exchange of between hydrogen and liquefied nitrogen in a pre-cooler before liquefaction. The performance of this converter was evaluated by the enthalpy change between the inlet line and the out line. The converter is filled with 600 cc by selecting iron oxide(Fe₂O₃) as a catalyst. The conversion rates were compared for each flow range[0.1 to 0.6 m3/min (H₂ @ 293 K, 1 atm)]. Overall, as the flow rate of hydrogen increased, the conversion rate decreased. However, as the flow rate increased, a slight temperature decrease of hydrogen occurred, and there were a section in which the conversion rate increased due to an increase in the equilibrium point of ratio of Para.
100 kg/day 액화수소 제조시설용 Ortho-Para 변환기의 설계 및 성능평가
양성민(Seong Min Yang),박주형(Joo Hyoung Park),이병무(Byeong Moo Lee),김서영(Seo Yong Kim),홍동희(Dong Hui Hong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
This Ortho-Para hydrogen converter was designed for application to actual hydrogen liquefaction facility. The conversion device converts Ortho hydrogen into Para hydrogen after heat exchange of between hydrogen and liquefied nitrogen in a pre-cooler before liquefaction. The performance of this converter was evaluated by the enthalpy change between the inlet line and the out line. The converter is filled with 600 cc by selecting iron oxide(Fe₂O₃) as a catalyst. The conversion rates were compared for each flow range[0.1 to 0.6 m3/min (H₂ @ 293 K, 1 atm)]. Overall, as the flow rate of hydrogen increased, the conversion rate decreased. However, as the flow rate increased, a slight temperature decrease of hydrogen occurred, and there were a section in which the conversion rate increased due to an increase in the equilibrium point of ratio of Para.
100 kg/day 액화수소 제조시설용 Ortho-Para 변환기의 설계 및 성능평가
양성민(Seong Min Yang),박주형(Joo Hyoung Park),이병무(Byeong Moo Lee),김서영(Seo Yong Kim),홍동희(Dong Hui Hong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
This Ortho-Para hydrogen converter was designed for application to actual hydrogen liquefaction facility. The conversion device converts Ortho hydrogen into Para hydrogen after heat exchange of between hydrogen and liquefied nitrogen in a pre-cooler before liquefaction. The performance of this converter was evaluated by the enthalpy change between the inlet line and the out line. The converter is filled with 600 cc by selecting iron oxide(Fe₂O₃) as a catalyst. The conversion rates were compared for each flow range[0.1 to 0.6 m3/min (H₂ @ 293 K, 1 atm)]. Overall, as the flow rate of hydrogen increased, the conversion rate decreased. However, as the flow rate increased, a slight temperature decrease of hydrogen occurred, and there were a section in which the conversion rate increased due to an increase in the equilibrium point of ratio of Para.