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An Efficient Rice Mutagenesis System Based on Suspension-Cultured Cells

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Journal of Integrative Plant Biology 2013年第2期55卷 122-130页

作者： Yuan-Ling Chen Hui-Lin Liang Xing-Liang Ma Su-Lin Lou yong-yao Xie Zhen-Lan Liu Le-Tian Chen yao-Guang Liu State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of Life Sciences South China Agricultural University

Plant mutants are important bio-resources for crop breeding and gene functional studies. Conventional methods for generating mutant libraries by mutagenesis of seeds with physical or chemical agents are of low efficiency. Here, we developed a highly-efficient ethyl methanesulfonate （EMS） mutagenesis system based on suspension-cultured cells, with rice （Oryza sativa L.） as an example. We show that treatment of suspension-cultured tiny cell clusters with 0.4% EMS for 18-22 h followed by differentiation and regeneration produced as high as 29.4% independent mutant lines with visible phenotypic variations, including a number of important agronomic traits such as grain size, panicle size, grain or panicle shape, tiller number and angle, heading date, male sterility, and disease sensitivity. No mosaic mutant was observed in the mutant lines tested. In this mutant library, we obtained a mutant with an abnormally elongated uppermost internode. Sequencing and functional analysis revealed that this is a new allelic mutant of eui （elongated uppermost internode） caused by two point mutations in the first exon of the EUI gene, representing a successful example of this mutagenesis system.

关键词： Rice mutagenesis EMS suspension cell culture mutant.

ANALYSIS OF CAPITAL FLOW WITH GIS——Two Approaches for Regional Investment in China

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Chinese Geographical Science 2003年第1期13卷 2-8页

作者： yao yong-ling ( Public Administration School, Renmin University of China, Beijing 100872, P. R. China) Public Administration School Renmin University of China 100872 Beijing P. R. China

GIS technology has been mostly concerned with handling physical data andmodeling physical environment. However, the retirements of GIS for handling socio-economicinformation in many cases are different from those concerning phenomena in the physical *** of capital flow among regions requires the transitions both from economic values tophysical landscape and from physical surface to economic explanation. Rapid growth of Chineseeconomy comes mainly from investment. There are two main ways for obtaining high growth ofinvestment. One is government expenditure which usually invests in regional facility and amenityblock, which is regarded as stimulus for attracting investment. The other is the creation ofinvesting center and corresponding capital source areas, both of which need the central city withthe highest growth rate of investment among regions. This paper presents the cluster areas of bothgovernment revenue and total investment, the potential situation of capital flow between centralcity Shanghai and its neighbor provinces by using Classification' and Interpolation' functions ofArcView GIS.

关键词： capital flow geographic information system (GIS) regional investment cluster analysis

A topographical model for precipitation pattern in the Tibetan Plateau

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Journal of Mountain Science 2016年第5期13卷 763-773页

作者： QI Wen-wen ZHANG Bai-ping yao yong-hui ZHAO Fang ZHANG Shuo HE Wen-hui State Key Laboratory of Resource and Environment Information System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Belting 100049China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development andApplication Nanjing 210023China

As the highest and most extensive plateau on earth, the Tibetan Plateau has strong thermo- dynamic effect, which not only affects regional climate around the plateau but precipitation patterns of scattered meteorological also temperature and itself. However, due to stations, its spatial precipitation pattern and, especially, the mechanism behind are poorly understood. The availability of spatially consistent satellite-derived precipitation data makes it possible to get accurate precipitation pattern in the plateau, which could help quantitatively explore the effect and mechanism of mass elevation effect on precipitation pattern. This paper made full use of TMPA 3B43 V7 monthly precipitation data to track the trajectory of precipitation and identified four routes （east, southeast, south, west directions） along which moisture-laden air masses move into the plateau. We made the assumption that precipitation pattern is the result interplay of these four moisture- laden air masses transportation routes against the distances from moisture sources and the topographic barriers along the routes. To do so, we developed a multivariate linear regression model with the spatial distribution of annual mean precipitation as the dependent variable and the topographical barriers to these four moisture sources as independent variables. The result shows that our model could explain about 7o% of spatial variation of mean annual precipitation pattern in the plateau; the regression analysis also shows that the southeast moisture source （the Bay of Bengal） contributes the most （32.56%） to the rainfall pattern of the plateau; the east and the south sources have nearly the same contribution, 23.59% and 23.48%, respectively; while the west source contributes the least, only 2o.37%. The findings of this study can greatly improve our understanding of mass elevation effect on spatial precipitation pattern.

关键词： Tibetan Plateau Precipitation pattern Topography Moisture sources

The Gaojiacun Mafic-Ultramafic Complex(Sichuan,SW China):Neoproterozoic Magmatic Activity at the Western Margin of the Yangtze Craton

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Acta Geologica Sinica(English Edition) 2006年第5期80卷 705-723页

作者： Marian MUNTEANU yao yong Allan H. WILSON Gordon CHUNNETT LUO yaonan ZHAO Qixue School of Geosciences University of the Witwatersrand Wits 2050 Private Bag 3 Johannesburg South Africa Anglo-Platinum 28 Harrison St. Johannesburg 2001 South Africa Sichuan Bureau of Geology and Mineral Resources No. 25 Section 1 Renminbeilu Chengdu Sichuan 610081 China

The Neoproterozoic Gaojiacun intrusive complex （GIC） is composed of one big intrusion （ca. 9 × 7.5 km） and numerous satellite intrusions, emplaced in the low-grade schists of the Neoproterozoic Yanbian Group. The main intrusion is concentrically zoned, with peridotite bodies ＋ leucogabbroids in its core （inner zone） and the sequence： olivine hornblende gabbronorite - porphyric pyroxene hornblende gabbronorite （transitional zone） - pyroxene hornblende gabbronorite ＋ hornblende gabbro ＋ diorite （outer zone）, towards the margins. The satellite intrusions are composed either of a single rock type （peridotite, gabbro, diorite or granite） or of different rock types （peridotite ＋ diorite ＋ granite）. Upper crustal contamination is evidenced by the occurrence of numerous metamorphic enclaves, migmatites and mixed rocks in the outer zone of the main intrusion and in the satellite intrusions. Hornblende （often oikocrystic） is present in all mafic and ultramafic rocks. Cu-Ni （-PGE） deposits occur in several satellite intrusions, hosted in peridotite. The geochemical and mineralogical features of GIC support the presence of a subduction zone at the western edge of the Yangtze Craton. A feederrelated genesis of the satellite intrusions is inferred.

关键词： China Neoproterozoic ultramafic-mafic rocks cumulate Cu-Ni deposits

一类半正定多项式的平方和分解及其表达式的自动生成

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计算机学报 2006年第10期29卷 1862-1868页

作者：姚勇冯勇中国科学院成都计算机应用研究所成都610041

建立了一个把半正定稀疏多项式表为多项式平方和的算法.这一算法依赖于Hilbert第17问题的一系列经典研究结果以及实闭域上量词消去的柱形代数剖分算法.该算法的机器实现为一类代数不等式可读性证明的自动生成提供了一种非常自然的途径.

关键词：平方和分解柱形代数剖分 Gram矩阵方法 Hilbert 17问题

CO_(2) and photo-controlled reversible conversion of supramolecular assemblies based on water soluble pillar[5]arene and coumarin-containing guest

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Chinese Chemical Letters 2021年第1期32卷 349-352页

作者： Yufeng Cao Yanmei Chen Zhecheng Zhang Jin Wang Xiaolei Yuan Qin Zhao Yue Ding yong yao School of Chemistry and Chemical Engineering Nantong UniversityNantong 226019China

In this communication,a new supramolecualr amphiphile was successfully constructed based on water soluble pillar[5]arene and a unique guest which contain a CO_(2) responsive tertiary amine unit and a UV responsive coumarin *** guest molecule 1 dispersed in water,it self-assembled into sheet-like *** bubbling CO_(2),1 transformed into 1 H due to the tertiary amine unit was protonated,accompany the nano-sheets transformed into *** irradiation of 1 H with 365 nm light for 3 h,the coumarin group reacted with each other to form bola-type amphiphie 2 *** this case,vesicles collapsed and re-assembled into ***,when addition of WPS into the solution of 1 H,the vesicles transformed into micelles,this is due to the formation of supramolecular amphiphile WP5&1 *** irradiation of WP5&1 H with 365 nm light for 3 h,nano-ribbons observed instead of micelles in the ***,nanotubes from 2 H could also transform into nano-ribbons after adding *** selfassembly process and the resultant assemblies were characterized by TEM,SEM,DLS,SAXS and NMR *** to both CO_(2) and light are "green" for living organisms,we anticipated our system can offer the possibilities in "on demand" drug absorption and release.

关键词： Pillararene Supramolecular assemblies Amphiphiles Reversible conversion Coumarin

Pillar[5]arene based artificial light-harvesting supramolecular polymer for efficient and recyclable photocatalytic applications

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Chinese Chemical Letters 2024年第9期35卷 179-182页

作者： Lei Zhou Youjun Zhou Lizhen Fang Yiqiao Bai Yujia Meng Liang Li Jie Yang yong yao School of Chemical and Environmental Engineering Shanghai Institute of TechnologyShanghai 201418China School of Chemistry and Chemical Engineering Nantong City Key Laboratory of Life-Organic ChemistryNantong UniversityNantong 226019China College of Science Nanjing Forestry UniversityNanjing 210037China

Photosynthesis is the process through which living plants utilize photosynthetic pigments,such as chlorophyll,to convert CO_(2)and water into organic compounds and release O_(2)under visible *** this study,we have successfully constructed a fluorescent supramolecular polymer(P5Py_(2)/Zn/Gen)n by employing orthogonal pillar[5]arene-based molecular recognition and metal ion *** the supramolecular polymer,the guest molecule Gen unit acts as a light-harvesting moiety,as the ACQ effect is inhibited by host-guest interactions,while the(Py)_(2)/Zn center serves as a catalytic *** employing this orthogonal self-assembly strategy,we have enhanced the stability of both the donor and acceptor in catalyzing the reduction of p-nitrophenol to ***,this photocatalyst can be reused at least 5 times without significant conversion *** findings provide a pathway for constructing a recyclable artificial LHS that mimics the entire photosynthesis process.

关键词： Pillararenes Light-harvest Supramolecular polymer Photosynthesis Orthogonal self-assembly

Pillar[5]arene-based [3]rotaxanes: Convenient construction via multicomponent reaction and pH responsive self-assembly in water

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Chinese Chemical Letters 2020年第6期31卷 1550-1553页

作者： Junmei Ye Runmiao Zhan Wenjuan Yang Ying Han Hao Guo Ju Xie Chaoguo Yan yong yao School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 213300China School of Chemistry and Chemical Engineering Nantong UniversityNantong 226019China

Four pillar[5]arene based[3]rotaxanes(1-4)involving two 1,4-diethoxypillar[5]arene(DEP5)rings and a dumbbell-shaped component were successfully *** dumbbell-shape molecules contain one longer bridge,two triazole sites and two multicomponent *** threading DEP5 rings with linear guests(G1-G4)which contain two benzaldehyde units,the base catalyzed three-component reaction of dimedone,malononitrile and benzaldehyde was performed to construct the stoppers and connected the pseudorotaxanes with stoppers to generate *** structures of[3]rotaxanes and their self-assembly behaviors were characterized by 1 H NMR,13C NMR,NOESY,HR-ESI-MS,DLS and TEM *** hope that pillar[5]arene based[3]rotaxanes may have potential applications in drug delivery systems and molecular devices.

关键词： Pillararene Rotaxane Multicomponent reaction Molecular machine Self-assembly

EXACT　BOUNDS　OF　THE　MODIFIED　LPT　ALGORITHMS　APPLYING　TO　PARALLEL　MACHINES　SCHEDULING　WITH　NONSIMULTANEOUS　MACHINE　AVAILABLE　TIMES

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Applied Mathematics:A Journal of Chinese Universities 1997年第1期 111-118页

作者： LIN GUOHUI, HE yong, yao YUJUN AND LU HAIYAN

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关键词： LPT MODIFIED THE OF APPLYING ALGORITHMS