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The Arabidopsis CROWDED NUCLEI genes regulate seed germination by modulating degradation of ABI5 protein

Journal of Integrative Plant Biology 2016年第7期58卷 669-678页

作者： Wenming Zhao Chunmei Guan Jian Feng Yan Liang ni zhan Jianru Zuo Bo Ren State Key Laboratory of Plant Genomics and National Plant Gene Research Center Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049china Institute of Microbiology Chinese Academy of SciencesBeijing 100101China John Innes Centre Norwich NR4 7UHUnited Kingdom Institute of Biotechnology Zhejiang UniversityHangzhou 310058China

In Arabidopsis, the phytohormone abscisic acid （ABA） plays a vital role in inhibiting seed germination and in postgermination seedling establishment. In the ABA signaling pathway, ABI5, a basic Leu zipper transcription factor, has important functions in the regulation of seed germination. ABI5 protein localizes in nuclear bodies, along with AFP, COP1, and SIZ1, and was degraded through the 26S proteasome pathway. However, the mechanisms of ABI5 nuclear body formation and ABI5 protein degradation remain obscure. In this study, we found that the Arabidopsis CROWDED NUCLEI （CRWN） proteins, predicted nuclear matrix proteins essential for maintenance of nuclear morphology, also participate in ABA-controlled seed germination by regulating the degradation of ABI5 protein. During seed germination, the crwn mutants are hypersensitive to ABA and have higher levels of ABI5 protein compared to wild type. Genetic analysis suggested that CRWNs act upstream of ABIS. The observation that CRWN3 colocalizes with ABI5 in nuclear bodies indicates that CRWNs might participate in ABI5 protein degrada- tion in nuclear bodies. Moreover, we revealed that the extreme C-terminal of CRWN3 protein is necessary for its function in the response to ABA in germination. Our results suggested important roles of CRWNs in ABI5 nuclear body organization and ABI5 protein degradation during seed germination.

关键词： ABI5 Arabidopsis CROWDED NUCLEI germination nuclear body

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Wenzhou's Success Story

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China Today 2003年第3期52卷 62-64页

作者： zhan ni

AN exterrestrial landed inChina one day causing asensation across the coun-try.A politics—savvyBeijinger probed him about therelationship between terrestrialsand *** expo-ori-ented Shanghainese asked for hiscooperation in running an extrater—restrial exhibition.A gourmetCantonese invited him to a ban-quet in *** a busi-nessman from Wenzhoun inter-posed,“Wait,may I have a wordplease?Can we do business onyour planet?”

关键词：温州市浙江明朝经济政府职能

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Pan Shiyi:Avant-garde Real Estate Developer

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China Today 2003年第3期52卷 32-34页

作者： zhan ni

SEEN from afar,the 'BambooHouse' villa resembles thecrown worn by Chineseemperors,the bamboo parti—tions at its center like the tassels thathung over the imperial *** villa is composed of ceilings,floor and glass walls,but its parti-tions are of *** sun-light to penetrate *** roomsare thus imbued with Oriental mysti—Cism. The villa is the work of

关键词：潘施翼生平房地产经济阅读

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Recent advances in Fe-N-C-and Co-N-C-based materials as bifunctional electrocatalysts for oxygen reduction and oxygen evolution

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Science China Chemistry 2024年第4期67卷 1137-1160页

作者： Hui-Min Xu Hong-Rui Zhu Chen-Jin Huang Zhi-Jie zhang Ting-Yu Shuai Qi-ni zhan Gao-Ren Li College of Materials Science and Engineering Sichuan UniversityChengdu 610065China

Fe-nitrogen-carbon(Fe-N-C)-and Co-nitrogen-carbon(Co-N-C)-based electrocatalysts have been widely concerned because of their high OER/ORR activity,low metal cost,and simple *** exploration of Fe-N-C and Co-N-C single atombased catalysts with high activity and stability to overcome the slow kinetics of oxygen reduction and oxygen evolution reactions is also the key to the development of efficient electrolytic water,fuel cells,and rechargeable metal-air ***-N-C and Co-N-C single atom-based electrocatalysts have the advantages of a high utilization rate of metal atoms and high electrocatalytic activity,and are ideal catalysts for promoting electrochemical energy conversion and *** general principles of designing Fe-N-C and Co-N-C single atom-based electrocatalysts are reviewed in this ***,the strategies to improve the bifunctional catalytic activity and stability are ***,the challenges and prospects of Fe-N-C and Co-N-C single atom-based catalysts are well *** review will provide a reference for the directed optimization of Fe-N-C and Co-N-C single atom-based catalysts.

关键词： Fe-N-C Co-N-C single atom bifunctional oxygen electrocatalysts

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New Houses in old Quadrangles - Nanchizi Street Renovation

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China Today 2003年第11期52卷 20-23页

作者： staff reporter zhan ni

NANCHIZI is a special area of Beijing. Southeast of the Forbidden City, it used to be a part of the imperial palace. During the Ming Dynasty (1368-1644), its buildings served as government offices, and during the Qing Dynasty (1616-1911), it was the imperial storage area. Hutongs called Ciqi Ku (Porcelain Warehouse) and Denglong Xiang (Lantern Alley), reflect the

关键词：南池子北京明朝建筑风格

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Interconverting Models of Gray Matrix and Geographic Coordinates Based on Space Analytic Geometry

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Applied Mathematics 2013年第1期4卷 46-51页

作者： ni zhan Liang Lin Ling Lou College of Science Guilin University of Technology Guilin China

With the progress and development of science, the synchronous satellite as the high-tech product is taken something more and more seriously by all countries. Converting gray value matrix into geographic coordinates becomes more and more important. This paper establishes the models for interconverting row and column of gray value matrix which detected by the infrared detectors on synchronous satellites and geographic coordinates based on the related theorems and properties of space analytic geometry. We draw satellite cloud image with the data of gray matrix in MATLAB, convert coastline’s latitude and longitude coordinates into row and column coordinates of a gray matrix according via these models when the sub-satellite point’s row and column coordinates and geographic coordinates are given, then add coast-lines to the original satellite cloud image with the transformation data. We find that coast-lines completely match with the bump characteristics of satellite cloud image, and that verify the correctness of the models.

关键词： Space Analytic Geometry Satellite Cloud Image Geographic Coordinates Gray Value Matrix Coastline

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Empirical Study on Credit Risk of Our Listed Company Based on KMV Model

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Applied Mathematics 2014年第13期5卷 2098-2106页

作者： Liang Lin Ting Lou ni zhan College of Science Guilin University of Technology Guilin China

KMV model is one of the most important credit risk evaluation models in the world. It uses B-S option pricing and Morton formula based on the market value and volatility of the company’s equity, debt maturities, risk-free interest rates and the book value of liabilities to estimate the market value of the company’s assets and the volatility of the asset value. In this paper, based on the theory of KMV model, we can derive the listed company’s default rate, and assess credit risk. And the result is reasonable.

关键词： KMV Model Credit Risk Default Point

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Research on Credit Risk Measurement Based on Uncertain KMV Model

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Journal of Applied Mathematics and Physics 2013年第5期1卷 12-17页

作者： ni zhan Liang Lin Ting Lou College of Science Guilin University of Technology Guilin China

Regarding KMV model identification credit risk profile of small and medium-sized listed companies, at present, domestic scholars has made some achievements in the process of the KMV model combined with China’s national conditions. In this paper, we will amend the model by using uncertain interest rate instead of fixed rate on the basis of existing research. Comparing the uncertain KMV model to traditional KMV model with ST-listed companies and non-ST-listed companies in Shanghai and Shenzhen stock exchange, we find that it performs slightly better as a predictor in uncertain KMV model and in out of sample forecasts.

关键词： Credit Risks KMV Model Uncertain Interest Rate

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Project Scheduling Problem with Uncertain Variables

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Applied Mathematics 2014年第4期5卷 685-690页

作者： Liang Lin Ting Lou ni zhan College of Science Guilin University of Technology Guilin China

Project scheduling problem is mainly to determine the schedule of allocating resources in order to balance the total cost and the completion time. This paper chiefly uses chance theory to introduce project scheduling problem with uncertain variables. First, two types of single-objective programming models with uncertain variables as uncertain chance-constrained model and uncertain maximization chance-constrained model are established to meet different management requirements, then they are extended to multi-objective programming model with uncertain variables.

关键词： Project Scheduling Problem Uncertain Variable Single-Objective Programming Multi-Objective Programming

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Discussion Measurement Models and Algorithms of the Wind Vector Field Based on Satellite Images

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Applied Mathematics 2013年第8期4卷 122-126页

作者： Ting Lou Liang Lin ni zhan College of Science Guilin University of Technology Guilin China

This article aims to discuss the strike two-dimensional wind vector on geostationary satellite imageries. The magnitude and direction of the wind vector are decided by the moving speed of the clouds. First, based on the features of the cloud map, we extract the characteristics of clouds and establish matching model for the clouds image. Maximum correlation coefficient between the target modules and tracking module is obtained by using infrared brightness temperature cross-correlation coefficient method. Then, the beginning and end of the wind vector can be ascertained. Using the spherical triangles of the law of cosines, we determine the magnitude and direction of the wind vector.

关键词： Meteorological Satellite Cloud Motion Winds Related Coefficient Styling Image Matching

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