Plant breeding in the 21st century: Molecular breeding and high throughput phenotyping

Sorrells Mark E. 한국작물학회 2017 한국작물학회 학술발표대회 논문집 Vol.2017 No.-

Overexpression of BrCIPK1 Gene Enhances Abiotic Stress Tolerance by Increasing Proline Biosynthesis in Rice

Abdula, Sailila E.,Lee, Hye-Jung,Ryu, Hojin,Kang, Kwon Kyoo,Nou, Illsup,Sorrells, Mark E.,Cho, Yong-Gu Springer-Verlag 2016 Plant molecular biology reporter Vol.34 No.2

<P>The calcineurin B-like protein (CBL)-CBL-interacting protein kinase (CIPK) pathway is emerging as a major signaling pathway in plants. To understand the function of CIPK, the gene named BrCIPK1 from Brassica rapa were introduced into rice. Characterization of BrCIPK1 gene showed a 1982 bp, containing 1509 bp coding region and 502 amino acids. Green fluorescent protein (GFP)-tagged BrCIPK1 was observed exclusively in the cytoplasmic and peripheral regions in the plant cell. Gene expression showed that its messenger RNA (mRNA) transcription in B. rapa was differentially accumulated in the presence of cold, salinity, and drought, indicating its biological roles in multiple stress response pathways in plants. Furthermore, Ubi-1::BrCIPK1 rice lines showed significantly higher biomass, water content, and proline and free sugar content relative to those in the wild-type Gopum. The BrCIPK1 interacted with rice calcineurin B-like protein 1 and 5 (OsCBL1, OsCBL5), suggesting that it is activated by Ca2+-bound CBLs in the cytosol by calcium spiking and regulates its downstream target proteins in these regions to increase abiotic stress tolerance. The results imply that BrCIPK1 gene may be involved in stress adaptations through the activation of pyrroline-5-carboxylate synthase in the proline biosynthetic pathway. In this paper, a hypothetical mechanism of elevated tolerance to cold, drought, and salinity is presented.</P>

Symposium (1) : Recent Progress in Hepatology ; Liver Transplantation for Hepatocellular Carcinoma

( Michael F. Sorrel ) 대한소화기학회 1997 SIDDS Vol.4 No.-

Biliary Sepsis : Reviewing Treatment Options

Munro, R.,Sorrell, T.C. Medical Publications Korea 1986 Medical Progress Vol.8 No.10

서태평양(西太平洋) 및 동북아(東北亞)의 군사적(軍事的) 배비(配備)

찰스소렐스 ( Charles A. Sorrels ) 국방대학교 안보문제연구소 1977 국방연구 Vol.20 No.2

Study on Bioceramics : Effect of TiO₂ on Crystallisation in MgO-CaO-SiO₂-P₂O_(5) glass MgO-CaO-SiO₂-P₂O_(5) 유리의 結晶化에 미치는 TiO₂의 影響

Park, Hee Chan,Sorrell, C. C. 부산대학교 공과대학 1993 工大論文集 Vol.45 No.-

DTA 熱分析을 利用하여 MgO-CaO-SiO₂-P₂O_(5) 유리에 TiO₂를 添加하였을 때와 添加하지 않았을 때 核生成 速度 溫度를 決定하기 위하여 核生成 溫度 대 DTA 結晶化 봉우리의 最大값에 해당하는 溫度의 逆數를 프로트하였다. 活性化 에너지와 아브라미 지수를 決定하기 위하여 여러 가지 加熱速度(5-25℃/min)에서 얻어진 核生成된 시료의 DTA 봉우리 溫度 데이터를 利用하였다. 이 유리의 最大 結晶化 速度를 갖게하는 溫度는 TiO₂가 增加할수록 減少하였다. TiO₂를 添加한 유리의 아브라미 지수, m값은 TiO₂를 添加하지 않은 유리보다 큰 값을 보였다. 이 유리에서 TiO₂가 體積 核生成劑로 作用함을 確認하였다.

Domestic Greenhouse Gas Emissions Trading Schemes

( Yong Gun Kim ),( Erik F. Haites ),( Steve Sorrell ),( Tae Yong Jung ),( Poul Erik Morthorst ),( Myung Kyoon Lee ),( Jong Soo Lim ) 한국환경연구원 2003 수시연구보고서 Vol.2003 No.-

선진국에 대한 양적 감축의무 부과와 국제 배출권 거래제도의 도입을 핵심 내용으로 하는 교토의정서의 채택은 국제 온실가스 배출권 거래시장의 출범을 예고하고 있으며, 각국 정부는 이에 대응하기 위한 국내정책기반을 강화하고 있다. 덴마크와 영국 등 일부 선진국은 이미 국가 차원의 온실가스 배출권 거래제도를 시행하고 있으며, 유럽연합은 2005 년부터 역내 모든 국가가 참여하는 강제적인 온실가스 배출권 거래제도의 도입을 결정한 바 있다. 일본, 캐나다 등 비유럽 선진국에서도 온실가스 배출권 거래제의 도입을 적극 추진중이며, 교토의정서 참여를 거부하고 있는 미국에서도 주정부와 민간기업의 자율적인 배출권 거래제 도입이 확산되고 있으며 특히 미국 의회는 강제적인 감축목표 설정과 전국적인 배출권 거래제도의 도입을 전통적인 대기관리정책과 연계하여 추진하고 있다. 본 연구는 교토의정서에 명시되어 있는 국제 온실가스 배출권 거래제도와 함께 상호 호환거래가 가능한 청정개발체제 및 공동이행 사업의 크레딧 거래와 관련하여 최근까지의 협상결과를 분석하였다. 그리고 전국적인 온실가스 배출권 거래제도를 시행하고 있는 영국의 사례의 특징과 시사점을 분석하였으며, 2005 년부터 시행예정인 유럽연합의 역내 배출권 거래제도에 대해서도 지금까지의 진행경과와 향후 전망을 분석하였다. 또한 온실가스 배출권 거래제도와 밀접하게 연계되어 진행되고 있는 신재생에너지 발전크레딧 제도의 사례로서 덴마크의 최근 관련 동향을 정리하였다. 뿐만 아니라 미국, 일본, 캐나다의 온실가스 배출권 거래제도 도입 추진동향을 분석하고 향후 전망과 시사점을 도출하였다. 이들 비유럽 국가들은 유럽의 역내 온실가스 배출권 시장과의 연계를 모색하고 있으며, 향후 통합된 국제 배출권 시장으로 발전할 가능성이 높은 것으로 평가된다. 우리나라는 기후변화협약 및 교토의정서상으로 아직 개도국 지위를 인정받고 있음에 따라 정량적인 감축의무를 부담하고 있지 않다. 하지만 선발 개도국으로서 향후 추가적인 온실가스 감축의무 협상시 의무부담국가에 포함될 가능성이 있고, 국제적인 배출권 시장의 확대 과정에서 국내 대응역량의 확충이 필요한 상황이다. 본 연구에서는 이와 같은 특수한 여건하에서 국내적인 온실가스 배출권 시장의 설계에 대한 기본원칙과 세부 설계방안에 대한 분석을 시도하였다. 강제적인 배출권 거래제도의 도입 이전단계에서 자발적인 인센티브에 기초한 배출권 시장의 조성이 필요할 것으로 판단된다. 배출권 거래제도의 도입을 위한 국제적인 노력은 보다 활성화될 것으로 예상되며, 이에 대한 동향분석과 국제적인 협력방안에 대한 연구 또한 지속적으로 확대되어야 할 것이다. 본 연구는 이러한 연구의 시발점으로 평가되며, 앞으로도 각국의 전문가가 참여하는 국제협력연구가 적극 추진되어야 할 것이라 판단된다. The Kyoto Protocol, if it enters into force, would establish emission limitation commitments for the developed countries and a full international emissions trading system for greenhouse gases. This has forced each nation to give the emissions trading consideration and prepare its domestic climate policies. Domestic greenhouse gas (GHG) emissions trading systems (ETS) are already being in operation in UK and Denmark, and European Union has decided to introduce compulsory domestic GHG emissions trading from year 2005. Other non-European developed countries such as Japan and Canada are actively considering the introduction of domestic ETS. In the United States, even though it is still refusing to ratify the Protocol, many states are implementing or considering programs that would limit GHG emissions and a growing number of major companies are undertaking significant efforts to address climate change including participating in emissions trading. The United States Congress tries to establish the compulsory reduction target and a nation-wide ETS combined with its traditional climate policy. This study analyzed the results of recent international climate change negotiations related to the credit transaction of Clean Development Mechanism and Joint Implementation, and the international GHG ETS which was stated in the Kyoto Protocol. This study also provides an overview of the UK emissions trading scheme, describing its main elements and limitations and difficulties associated with the scheme. The major elements of the EU Emissions Trading Scheme, which begins in 2005, are also reviewed focusing on the areas which have generated particular controversy and difficulty. Also, the recent trend in Denmark is summarized especially in relation to the energy reform and the green certificate markets. The current progresses in introducing GHG ETS are overviewed for United States, Japan and Canada. These non-European countries are considering the linkage with the EU emissions trading market and it is assessed that the expansion to the integrated international ET market is highly likely. Korea, as a developing country under UNFCCC and Kyoto Protocol does not have the obligation to reduce its GHG emissions. However, it is likely that the country could be obligated to take more responsibilities, depending upon the future negotiations. Thus, it needs to prepare its domestic climate change policies for the future expansion of international ET market. In this study we tried to analyze the basic principles for the design of domestic GHG ETS and detailed design method under these special circumstances. And it appears that it is necessary to promote a voluntary and incentive based ET market prior to the introduction of compulsory ETS. The international effort to introduce ETS is expected to expand and intensify, thus the trend analysis and researches on international cooperation program should be continuously pursued. This study is the start of those research activities and it is believed that international cooperative researches of various experts of each nation are indispensable in this regard.

Cytolytic assessment of hyperacute rejection and production of nuclear transfer embryos using hCD46-transgenic porcine embryonic germ cells

Won, Ji Young,Ahn, Kwang Sung,Sorrell, Alice M.,Shin, Susa,Heo, Soon Young,Kang, Jee Hyun,Park, Jin-Ki,Chang, Won-Kyong,Shim, Hosup Cambridge University Press 2009 Zygote Vol.17 No.2

<B>Summary</B><P>Human complement regulatory protein hCD46 may reduce the hyperacute rejection (HAR) in pig-to-human xenotransplantation. In this study, an <I>hCD46</I> gene was introduced into porcine embryonic germ (EG) cells. Treatment of human serum did not affect the survival of hCD46-transgenic EG cells, whereas the treatment significantly reduced the survival of non-transgenic EG cells (<I>p</I> < 0.01). The transgenic EG cells presumably capable of alleviating HAR were transferred into enucleated oocytes. Among 235 reconstituted oocytes, 35 (14.9%) developed to the blastocyst stage. Analysis of individual embryos indicated that 80.0% (28/35) of embryos contained the transgene hCD46. The result of the present study demonstrates resistance of hCD46-transgenic EG cells against HAR, and the usefulness of the transgenic approach may be predicted by this cytolytic assessment prior to actual production of transgenic pigs. Subsequently performed EG cell nuclear transfer gave rise to hCD46-transgenic embryos. Further study on the transfer of these embryos to recipients may produce hCD46-transgenic pigs.</P>

2SK-10 Photocatalysis fundamentals and surface modification of magnetic core-shell Fe₃O₄/SiO₂/CeO₂

( Duangdao Channei ),( Sukon Phanichphant ),( Auppatham Nakaruk ),( Pramod Koshy ),( Charles C. Sorrell ) 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1

Photocatalysis as a green and sustainable technology has received increasing attention during the past decades. Based on the fundamentals of photocatalysis and surface chemistry of CeO₂ materials, we herein discuss a very facile and reproducible method for the synthesis of Fe₃O₄/SiO₂/CeO₂ with a control of core-shell structure. The first attempt in producing Fe₃O₄/CeO₂ magnetic photocatalyst involved the direct deposition of CeO₂ onto the surface of magnetic Fe₃O₄ particles. However a direct contact of CeO₂ onto the surface of magnetic Fe₃O₄ particles presented unfavorable heterojunction, thus the SiO₂ barrier layer between magnetic Fe₃O₄ and CeO₂ was prepared as a core-shell structure to reduce the negative effect. Fe₃O₄/SiO₂/CeO₂ core-shell magnetic nanoparticles was recovered in the consecutive cycles of use by external magnetic field. The material showed good stability with regards to photocatalytic performance for three cycles of use.