• 제목/요약/키워드: BRI

검색결과 69건 처리시간 0.021초

벼 Brassinosteroid Insensitive 1 Receptor Kinase의 기능에 관한 연구 (Functional analysis of the rice BRI1 receptor kinase)

  • 연진욱;김회택;노일섭;오만호
    • Journal of Plant Biotechnology
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    • 제43권1호
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    • pp.30-36
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    • 2016
  • Brassinosteroids (BRs) are essential plant steroid hormones required for cell elongation, plant growth, development and abiotic and biotic stress tolerance. BRs are recognized by BRI1 receptor kinase that is localized in the plasma membrane, and the BRI1 protein will eventually autophosphorylate in the intracellular domain and transphosphorylate BAK1, which is a co-receptor in Arabidopsis thaliana. However, little is known of the role OsBRI1 receptor kinase plays in Oryza sativa, monocotyledonous plants, compared to that in Arabidopsis thaliana, dicotyledonous plants. As such, we have studied OsBRI1 receptor kinase in vitro and in vivo with recombinant protein and transgenic plants, whose phenotypes were also investigated. A OsBRI1 cytoplasmic domain (CD) recombinant protein was induced in BL21 (DE3) E.coli cells with IPTG, and purified to obtain OsBRI1 recombinant protein. Based on Western blot analysis with phospho-specific pTyr and pThr antibodies, OsBRI1 recombinant protein and OsBRI1-Flag protein were phosphorylated on Threonine residue(s), however, not on Tyrosine residue(s), both in vitro and in vivo. This is particularly intriguing as AtBRI1 protein was phosphorylated on both Ser/Thr and Tyr residues. Also, the OsBRI1 full-length gene was expressed in, and rescued, bri1-5 mutants, such as is seen in normal wild-type plants where AtBRI1-Flag rescues bri1-5 mutant plants. Root growth in seedlings decreased in Ws2, AtBRI1, and 3 independent OsBRI1 transgenic seedlings and had an almost complete lack of response to brassinolide in the bri1-5 mutant. In conclusion, OsBRI1, an orthologous gene of AtBRI1, can mediate normal BR signaling for plant growth and development in Arabidopsis thaliana.

중국 일대일로 정책이 탄자니아 무역패턴에 미치는 영향 (The Impacts of China's Belt and Road Initiative (BRI) on the Trade Patterns of Tanzania)

  • 오스카 말레라;이태희
    • 무역학회지
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    • 제46권3호
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    • pp.1-24
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    • 2021
  • The Belt and Road Initiative (BRI) is designed to intensify bilateral trade between China and the BRI countries through the improvement of transportation connections. However, little research has empirically investigated the impacts of this policies on the trade patterns. This paper attempts to evaluate the impacts of BRI on the trade patterns of Tanzania. Our study extends the original gravity model of bilateral trade by adding GDP per capita, population and proximity as the explanatory variables. According to our research, we observed that the BRI significantly impacted the Tanzania's trade patterns, as it led to the increase of bilateral trade flow between Tanzania and China more importantly between Tanzania and its adjacent countries. It indicates that the Belt and Road Initiative (BRI) has boosted Tanzania's trade exclusively, hence the Tanzania's export sector earns greater trading potential with the adjacent countries.

인도-태평양 전략 vs. 일대일로 이니셔티브: 아시아 헤게모니에 대한 시사점 (INDO-PACIFIC STRATEGY versus BELT AND ROAD INITIATIVE: Implications for hegemony in Asia)

  • 류하연
    • 해양안보
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    • 제2권1호
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    • pp.71-123
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    • 2021
  • 한국 정부는 미국 주도의 인도-태평양 전략 (Indo-Pacific Strategy, IPS)과 중국의 일대일로 계획 (Belt and Road Initiative, BRI) 간 양자택일이라는 점차 커져가는 압박을 마주하고 있다. 이에 따라, 이 연구는 한국 국가 정책 과제의 맥락에서 IPS와 BRI를 상세히 분석해 본다. Daniel Nexon and Thomas Wright (2007)의 네트워크 구조 연구를 기반으로, 이 연구는 IPS와 BRI에 각각 특정한 네트워크 구조를 규정하고자 한다. 이 분석을 통해 핵심국과 참가국 간의 관계를 설명할 수 있다. IPS 와 BRI의 특정 구성에 대한 이해는 참가국이 각 네트워크에서 기대할 수 있는 바를 나타내므로 중요하다. Nexon and Wright에 따르면, 네트워크 구조에는 단극성 무정부 상태, 헤게모니적 질서, 헌법적 질서, 제국적 질서의 네 가지 유형이 있다. 이를 바탕으로 IPS는 헌법적 질서를, BRI는 제국적 질서를 가지고 있는 것으로 분석된다. 따라서, 이 연구는 IPS 참여가 중국과의 BRI 파트너십보다 독립적인 외교 정책을 가능케 할 여지가 크다는 점을 한국 정부에 제안한다. IPS 참여를 통해 한국은 국가 안보 측면에서 이익을 누릴 수 있고, 보다 유리한 지역 권력 균형을 달성할 수 있을 것이다.

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일본 BRI 2002의 알고리즘에 관한 고찰 (A Study on the Algorithm of BRI 2002 in Japan)

  • 최미란;신이철;권영진
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 2008년도 춘계학술논문발표회 논문집
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    • pp.294-297
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    • 2008
  • This is the study to investigate the Algorithm of BRI 2002 which is high level estimation program of smoke movement and phenomenon for performance based of design named 'ROOT C', made by Japan. BRI2002 is composed of 3 parts, one is main program, and the others are 4 subroutines and blockdata. The aim of this study is to analyze the BRI 2002, the only one certified program for the P.B.D and compare the other common program for smoke movement simulation program.

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Belt and Road Initiatives and the Competitiveness of Natural Rubber Exports: Evidence from the BRI Region

  • MOHAMAD, Abdul Hayy Haziq;ZAINUDDIN, Muhamad Rias K.V.
    • The Journal of Asian Finance, Economics and Business
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    • 제8권11호
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    • pp.145-155
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    • 2021
  • This study examines the export competitiveness of four major natural rubber exporters in the Belt and Road Initiative (BRI) region and investigates the factors affecting bilateral natural rubber export. This study utilized the revealed symmetric comparative advantage (RSCA) to measure export competitiveness. Next, this study employed the gravity model using the Poisson Pseudo Maximum Likelihood (PPML) estimation to analyze the factors affecting bilateral export from the four major natural rubber exporters to 46 countries in the region. The analysis is conducted by using annual data from 2001 till 2018. The findings showed that all four major exporters maintained their export competitiveness. Indonesia and Vietnam notably exhibited increasing trends in the early 2000s. Besides, the market share for Malaysia and Vietnam have increased from 2013 to 2015 with the BRI implementation in 2013. In addition, this study discovered that non-tariff measures (NTM) have a positive and significant impact on the bilateral export of natural rubber. The overall findings strongly indicate that the natural rubber export has increased post BRI announcement. The outcome highlighted the benefits of BRI implementation on the natural rubber export. This study is the first attempt to apply the gravity model on the natural rubber exports within the BRI region.

The Belt and Road Initiative (BRI): Opportunities and Risks from Vietnamese Perspective

  • NGUYEN, Long Duc Bao;LY, Tracy Trang;TRAN, Doan Cong;TRAN, Ai Van;LE, An Quoc;HUDSON, Alan
    • The Journal of Asian Finance, Economics and Business
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    • 제9권4호
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    • pp.229-238
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    • 2022
  • The goal of this research is to look at the Belt and Road Initiative's (BRI) goals, principles, and priorities, as well as criticisms and concerns. Another goal is to determine the Vietnamese government's best response to the BRI. Finally, the study looks at the Vietnamese viewpoint. Document review is used in conjunction with PESTELED analysis and EIU country risk model technique in this study. The study is focused on in-depth interviews with 38 top government leaders, researchers, and scholars by adopting the Delphi technique to determine major factors of risks and opportunities as well as obtain a clearer view on the Vietnamese perspective of the BRI. The main conclusion is that Vietnam's participation in the BRI could result in a variety of benefits and risks, including economic development, connectivity and integration, development finance, cooperation, coordination, trade facilitation, and people-to-people communication, as well as diplomatic and political risks, financial risks, environmental challenges, and job creation. Another conclusion is suggested that careful and case-by-case negotiation with China is needed for Vietnam to exploit the future benefits of BRI. There is a need to set up the strategy to mitigate the risk impacts, reduce the risk level, avoid risk, at last turn the risk into opportunities.

중국의 해양강국 및 일대일로 구상과 미래 한·중 협력 전망 (Implications of China's Maritime Power and BRI : Future China- ROK Strategic Cooperative Partnership Relations)

  • 윤석준
    • Strategy21
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    • 통권37호
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    • pp.104-143
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    • 2015
  • China's new grand strategy, the "One Belt, One Road Initiative" (also Belt Road Initiative, or BRI) has two primary components: Chinese President Xi Jinping announced the "Silk Road Economic Belt" in September 2013 during a visit to Kazakhstan, and the "21st Century Maritime Silk Route Economic Belt" in a speech to the Indonesian parliament the following month. The BRI is intended to supply China with energy and new markets, and also to integrate the countries of Central Asia, the Association of Southeast Asia Nations (ASEAN), and the Indian Ocean Region - though not Northeast Asia - into the "Chinese Dream". The project will be supported by the Asian Infrastructure Investment Bank (AIIB), due to open in 2016 with 57 founding members from all around the world, and China has already promised US$ 50 billion in seed funding. China's vision includes networks of energy pipelines, railways, sea port facilities and logistics hubs; these will have obvious commercial benefits, but also huge geopolitical significance. China seems to have two distinct aims: externally, to restore its historical sphere of influence; and internally, to cope with income inequalities by creating middle-class jobs through enhanced trade and the broader development of its economy. In South Korea, opinion on the BRI is sharply polarized. Economic and industrial interests, including Korea Railroad Corporation (KORAIL), support South Korean involvement in the BRI and closer economic interactions with China. They see how the BRI fits nicely with President Park Geun-hye's Eurasia Initiative, and anticipate significant commercial benefits for South Korea from better connections to energy-rich Russia and the consumer markets of Europe and Central Asia. They welcome the prospect of reduced trade barriers between China and South Korea, and of improved transport infrastructure, and perceive the political risks as manageable. But some ardently pro-US pundits worry that the political risks of the BRI are too high. They cast doubt on the feasibility of implementing the BRI, and warn that although it has been portrayed primarily in economic terms, it actually reveals a crucial Chinese geopolitical strategy. They are fearful of China's growing regional dominance, and worried that the BRI is ultimately a means to supplant the prevailing US-led regional security structure and restore the Middle Kingdom order, with China as the only power that matters in the region. According to this view, once China has complete control of the regional logistics hubs and sea ports, this will severely limit the autonomy of China's neighbors, including South Korea, who will have to toe the Chinese line, both economically and politically, or risk their own peace and prosperity.

Tyrosine phosphorylation as a signaling component for plant improvement

  • Park, Youn-Il;Yang, Hyo-Sik;Oh, Man-Ho
    • Journal of Plant Biotechnology
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    • 제42권4호
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    • pp.277-283
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    • 2015
  • Plant genome analyses, including Arabidopsis thaliana showed a large gene family of plant receptor kinases with various extracellular ligand-binding domain. Now intensively studies to understand physiological and cellular functions for higher plant receptor kinases in diverse and complex biological processes including plant growth, development, ligands perception including steroid hormone and plant-microbe interactions. Brassinosteroids (BRs) as a one of well know steroid hormone are plant growth hormones that control biomass accumulation and also tolerance to many biotic and abiotic stress conditions and hence are of relevance to agriculture. BRI1 receptor kinase, which is localized in plasma membrane in the cell sense BRs and it bind to a receptor protein known as BRASSINOSTEROID INSENSITIVE 1 (BRI1). Recently, we reported that BRI1 and its co-receptor, BRI1-ASSOCIATED KINASE (BAK1) autophosphorylated on tyrosine residue (s) in vitro and in vivo and thus are dual-specificity kinases. Other plant receptor kinases are also phosphorylated on tyrosine residue (s). Post-translational modifications (PTMs) can be studied by altering the residue modified by directed mutagenesis to mimic the modified state or to prevent the modification. These approaches are useful to not only characterize the regulatory role of a given modification, but may also provide opportunities for plant improvement.

China's Belt and Road Initiative and its Implications for Global Development

  • DUNFORD, MICHAEL
    • Acta Via Serica
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    • 제6권1호
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    • pp.91-118
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    • 2021
  • China's Belt and Road Initiative (BRI) is China's contribution to the need for the world to collectively address deficits of peace, development, governance, and problems relating to climate, the environment and human health. The rise of China and the BRI do challenge the current 'rules-based global order' and the economic dominance and moral, political, economic, and cultural leadership of the United States and its allies. However, China's goal is not hegemony but a multipolar world in which common values coexist with principles of peaceful coexistence (including non-interference in the internal affairs of sovereign states). The evolution of the BRI is outlined, and the ways in which it reflects Chinese interests are summarized, including its roles in addressing natural resource dependence and excess capacity, a transition from investment promotion and factor-intensive growth to going out and industrial upgrading, going West, and the effective deployment of China's foreign exchange assets. Although China does therefore potentially gain, the BRI is designed so that partners also gain in a quest for win-win co-operation and mutual benefit. The values that underlie this approach and the call for a community with a shared future are compared with competing western values, whose roots lie in Enlightenment thought and are associated with a record of colonialism and imperialism. In this light, the article concludes with a consideration of the global implications of the BRI, the challenges it confronts and the likelihood that the unipolar moment will give way to a multipolar global development path.

Determinants of energy efficiency in Sub-Saharan Africa

  • Acquah, Patience Mensah;Sun, Huaping;Alemzero, David Ajene;Li, Liang
    • Asia Pacific Journal of Business Review
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    • 제5권2호
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    • pp.19-44
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    • 2021
  • Sub Saharan Africa (SSA) is receiving increased investments in the energy sector under the belt and road initiative (BRI) project since its inception in 2013. SSA has a worse energy efficiency ratio coupled with deficient electricity access, through analysis showed varied impacts on the SSA countries due to the BRI initiative. This study dilves into the influencing factors for Energy Efficiency (EE) in 38 SSA countries, applying the probit and logit approach for 2000-2018. The Multiple-regression model shows significant results of some variables such as foreign direct investment, gross domestic product, and port infrastructure quality being significant on EE under BRI initiative countries. However, the logit and probit models produce similar results and the marginal effect for the entire variable, except energy imports that do not likely impact EE. Furthermore, the interaction of quality of port infrastructure and foreign direct investment variables produces significant results, highlighting the increased investments SSA receives under the BRI initiative in the energy and transport sectors. The model Percent correctly predicted (PCP) value was about 84%, indicating it correctly classified the variables and about 16% not classified. The study recommends EE performance standards should be incorporated on energy projects in SSA to ensure that these projects are energy efficient and decouple SSA's energy demand from economic growth. The research proffers suggestions for policy regarding the BRI initiative in SSA and the implications on sustainable energy and building a community with a shared future.