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Lee, Hye-Jung,Park, Jung-An,Auh, Chung-Kyoon,Lee, Kyeong-Yeoll,Kim, Chang-Seok,Lee, Gwan-Seok,Soh, Hyun-Cheol,Choi, Hong-Soo,Lee, Suk-Chan The Korean Society of Plant Pathology 2011 Plant Pathology Journal Vol.27 No.4
Tomato yellow leaf curl virus (TYLCV), a member of genus Begomovirus, was isolated in Korea in 2008. We sequenced and analyzed the DNA-A of 51 TYLCV isolates from Korea, and 13 of the TYLCV isolates were selected as type representatives of TYLCV from six Korean provinces. The 13 TYLCV isolates were classified into Korea Group 1 (KG1, nine isolates) and Korea Group 2 (KG2, four isolates) based on the results of phylogenetic analysis and genome size (2774 and 2781 nucleotides, respectively). A recombination detection program 3 (RDP3) revealed two recombinations between the TYLCV Korea isolates and other TYLCV isolates [Thailand (AF206674), Iran (AJ132711), and Israel (X76319)]. TYLCV Jeju isolate was characterized by two recombination events (E1 and E2) caused by the presence of E1 in ORF V1 and C3, which may seem to be the mutations of the high nucleotide transversion and transition rate. Collectively, our results suggest that the occurrence of nucleotide transversions and transitions in TYLCV DNA-A might have induced novel recombination events within the TYLCV Korea isolates.
Identification of natural weed hosts of Tomato chlorosis virus in Korea by RT-PCR with root tissues
Kil, Eui-Joon,Lee, Ye-Ji,Cho, Seungchan,Auh, Chung-Kyoon,Kim, Donggiun,Lee, Kyeong-Yeoll,Kim, Mi-Kyeong,Choi, Hong-Soo,Kim, Chang-Seok,Lee, Sukchan Springer-Verlag 2015 European Journal of Plant Pathology Vol.142 No.2
Altered Sulfate Metabolism of Arabidopsis Caused by Beet Severe Curly Top Virus Infection
Honggun Lee,이석찬,Sunghee Park,Donggiun Kim,Taek-Kyun Lee,Seungshic Yum,Chung-Kyoon Auh 한국식물병리학회 2005 Plant Pathology Journal Vol.21 No.4
Sulfur, an important component of plants, is regulated by a variety of stresses in sulfate assimilation and metabolism. Increase has been observed in the expression of O-acetylserine(thiol)lyase (OASTL) through two-dimensional electrophoresis with the shoot tips of Arabidopsis infected by beet severe curly top geminivirus (BSCTV). With the three- to six-fold increases in the transcript expression of OASTL, serine acetyltransferase (SAT) and γ-glutmylcysteine synthetase (GSH) were induced over the mock-inoculated organization in each organization through real-time RT-PCR analysis.The expression of those genes might affect the accumulation of anthocyanin in symptomatic tissues and the induction of abnormal callus-like structures formed by additional cell divisions as typical disease symptoms of BSCTV-infected Arabidopsis. This is the first report to describe the collaborative induction of OASTL, SAT,and GSH in virus-infected plants. The changed expressions of OASTL, SAT, and GSH in Arabidopsis infected with BSCTV raises new aspects regarding the biological function of symptomatic tissues related to sulfate metabolism.
세라믹 담체에 적용된 해양박테리아 4종의 저농도 질소-인 제거
이건섭(Lee, Gun-Sup),김소정(Kim, So-Jung),정영재(Chung, Young-Jae),김동균(Kim, Dong-Giun),이상섭(Lee, Sang-Seob),오정균(Auh, Chung-Kyoon),이택견(Lee, Taek-Kyun) 한국산학기술학회 2012 한국산학기술학회논문지 Vol.13 No.10
세라믹담체에 적용한 4종의 해양박테리아 (Aeromonas hydrophila, Chryseomonas indologenes, Pseudomonas diminuta, Vibrio parahaemolyticus)의 저농도 질소‧인 제거 효율의 변화를 분석하였다. 해양박테리아는 광양만에서 분 리 동정하였다. 담체에 적용한 4종의 해양박테리아 모두 대조군에 보다 약 3배 정도의 성장률이 증가하였으며, 암모 니아서 질소 제거효율도 30% 이상 증가하였다. 질산성 질소의 제거 효율은 A. hydrophila 균주가 가장 높았으며, 인 의 제거는 P. diminuta 균주가 가장 높은 것으로 나타났다. 본 연구의 결과는 세라믹담체는 질소-인 제거 효율 증진 에 좋은 재료이며, 분리된 해양박테리아는 현장의 저농도 질소-인 조절에 유용할 수 있음을 보여준다. Changes of low concentrated nitrogen-phosphate removal efficiency were investigated in 4 strains of marine bacteria applied to ceramic media. Marine bacteria were isolated and identified from Gwangyang bay. Growth rates and removal efficiencies of NH<sub>3</sub>-N of 4 strains of marine bacteria applied to ceramic media were increased approximately 3 fold and over 30% than control group, respectively. A. hydrophila and P. diminuta had highest NO<sub>3</sub>-N and phosphate removal efficiencies, respectively. This results showed that ceramic media is very nice material for improvement of nitrogen-phosphate removal efficiency and isolated marine bacteria may be useful to control nitrogen-phosphate at low concentration in field.
안영하(Young-Ha An),서순택(Soon Taek Seo),우제창(Jechang Woo),오정균(Chung-Kyoon Auh),엄애용(Aeyong Eom) 미국헌법학회 2014 美國憲法硏究 Vol.25 No.2
생명에 관한 연구는 인간 및 생명체를 직접 연구대상으로 함에 따라 과학성과 함께 윤리성의 확보가 전제되어야 한다. 급속한 과학기술의 발달에 따라 현재 진행되고 있는 생명에 관한 연구는 인류에게 큰 도움을 줄 수 있는 반면에, 윤리성이 결여된 연구는 인류에게 심각한 재앙을 초래할 위험성도 동시에 지니고 있기 때문이다. 본 논문은 우리의 실정에 맞는 생명윤리관련 법제의 구축과 정착을 목적으로 한 연구의 일환이다. 우리의 현실에 맞는 법제도의 구축 및 정착을 위한 1단계로서 생명윤리 법제 전반에 걸쳐 나타나고 있는 법적 문제점을 기존의 연구를 중심으로 검토하였다. 이를 위하여 생명윤리 및 안전에 관한 법률을 기초로 하여, 생명에 관한 연구에 대한 헌법적 문제와 생명윤리법 자체에 내제된 문제, 연구윤리와 관련된 조직의 문제 및 윤리위반에 관한 처벌의 형사정책적 문제로 구분하여 살펴보았다. 세부적으로는 헌법적 기본권과 관련하여 (1) 배아의 헌법상의 지위, (2) 인간의 존엄성과 관련된 문제, (3) 미국의 헌법상의 기본권과 관련된 생명윤리 및 연구지원정책에 대하여 검토하였다. 또한 생명윤리에 대한 기본법이라 할 수 있는 생명윤리 및 안전에 관한 법률에 대하여 다음과 같은 내용을 검토하였다. 생명윤리심의위원회(국가생명윤리심의위원회 및 기관생명윤리위원회), 인간을 대상으로 한 연구에서 피험자 보호문제(인간대상연구 및 유전자검사의 동의), 배아 등 생성과 연구관련사항의 정비, 인체유래물은행, 유전자 검사기관에 대한 문제, 인체유래물의 개념과 범위, 위임입법의 한계, 법규위임체계상의 문제, 생명윤리법의 적용 범위의 문제 등에 관하여 검토하였다. 마지막으로 생명윤리에 관한 처벌규정상의 문제와 관련하여 (1) 벌칙규정의 상한제한방식 및 (2) 법정형의 형평성에 대하여 검토하였다. 검토 결과 현행 생명윤리 법제는 헌법적 문제뿐만 아니라 생명윤리 및 안전에 관한 법률 자체에서도 여러 문제점을 내포하고 있음을 확인하였다. 여기서 제기된 문제점들을 바탕으로 이를 해결할 수 있는 생명윤리법제를 정비할 필요성이 있다. Ethicality and scientific character are required for researches on human beings or living animals, for those researches can result in a terrible disaster if they are devoid of ethicality as well as high-tech those researches will bring about a great improvement in human lives. The purpose of this study is to establish the life research related laws that is appropriate for Korean society. First, we examined generally legal problems in existing bioethics legislation based on the bioethics and safety act of Korea, focusing on constitutional and legal problems, bioethics institution, and penalty of bioethics violations. Furthermore, the following are studied in regard to constitutional fundamental rights: constitutional status of the embryos, respect of human dignity, protection of human subject, human genome study, and protection of human rights. Second, we also examined the bioethics and safety act closely to study the following: national bioethics committee and institutional bioethics committee, protection of human subject in the human subjects research project (consent to human subjects research and genetic test), prohibition of human cloning, rules on production and research of embryos, human material bank, genetic testing institution, concept and scope of human materials, limit of delegated legislation, and applicative scope of the bioethics and safety act. Lastly, we examined maximum sentences of penal provisions and fairness of legal penalty in regard to the bioethics punishment regulations. In this study, we found that the current bioethics and safety act has several problems, constitutionally or legally. Therefore, it may be necessary to revise the bioethics legislation partly from the results of this study.
Lee, Kyung-Min,Oh, Taek-Joo,Kim, So-Hyun,Kim, Hye-Youn,Chung, Hyunmi,Min, Daniel Seungwook,Auh, Joong-Hyuck,Lee, Hong Jin,Lee, Jaehwi,Choi, Hyung-Kyoon Korean Society of Food Science and Technology 2016 Food Science and Biotechnology Vol.25 No.4
In this study, comprehensive metabolic profiles of mulberry fruits (Morus alba Linnaeus) at various maturation stages were determined using GC-MS and HPLC. In total, 48 compounds, including 3 alcohols, 16 amino acids, 7 organic acids, 2 sugars, 4 phenolics, 2 terpenes, 3 vitamins, 9 fatty acids, and 2 cyanidins were identified in the mulberry samples. Levels of chlorogenic acid, cryptochlorogenic acid, neochlorogenic acid, ascorbic acid, and ${\delta}-tocopherol$, and total fatty acid content were significantly higher in the semi-matured mulberry fruits. Furthermore, levels of glycerol, citrate, fructose, glucose, 3-O-glucoside, and cyanidin-3-O-rutinoside were significantly higher at the fully matured stage than at the other stages. Twelve biosynthetic pathways were suggested as major pathways involved in mulberry fruit maturation. The information obtained in this study will provide a basis for future investigations toward quality control or metabolic engineering for development of mulberry fruits possessing commercially valuable characteristics.