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chinese Journal of Chemistry 1992年第5期10卷 396-404页

作者： LIANG, Kang-Ning HUI, Yong-Zheng Shanghai institute of Organic Chemistry, chinese academy of sciences, Shanghai 20003. Shanghai institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032

This paper presents the preparations and characterization of vesicles of four new fluoro- carbon amphiphiles with 1,3.disubstituted glycerol structure in common and different headgroups (OH, 1; CO_2H, 2; quaternary ammonium salt, 3. and pyridinium salt, 4). These vesicles have higher transition temperature due to the stronger hydrophobic interaction between fluorocarbon chains. Addition of fluorocarbon additives with carboxylic acid or quaternary ammonium salt head group respectively shows different influences on phase behavior of vesicles of 2. These results are discussed based on the interaction within headgroup, hydrophobicity and specific mutahydrophobic interaction between fluoro- and hydrocarbon chains.

关键词： Characterization and phase transition study for vesicles of fluorocarbon amphiphiles with 1 3.disubstituted glycerol structure

Effect of Nitrate on Root Development and Nitrogen Uptake of Suaeda physophora Under NaCl Salinity

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Pedosphere 2010年第4期20卷 536-544页

作者： YUAN Jun-Feng FENG Gu MA Hai-Yan TIAN Chang-Yan Key Laboratory of Oasis Ecology and Desert Environment Xinjiang Institute of Ecology and Geography ChineseAcademy of Sciences Urumqi 830011 （China） Graduate-UniversitY of chinese academy of sciences Beijing 100039 （China） College of Resources and Environmental sciences China Agricultural University Beijing 100094 （China）

The effects of NaCl salinity and NO^-3.on growth, root morphology, and nitrogen uptake of a halophyte Suaeda physophora were evaluated in a factorial experiment with four concentrations of NaCl （1, 150, 3.0, and 450 mmol L^-1） and three NO^-3.levels （0.05, 5, and 10 mmol L^-1） in solution culture for 3. d. Addition of NO^-3.at 10 mmol L^-1 significantly improved the shoot （P 〈 0.001） and root （P 〈 0.001） growth and the promotive effect of NO^-3.was more pronounced on root dry weight despite the high NaCl concentration in the culture solution, leading to a significant increase in the root：shoot ratio （P 〈 0.01）. Lateral root length, but not primary root length, considerably increased with increasing NaCl salinity and NO^-3.levels （P 〈 0.001）, implying that Na^＋ and NO3.- in the culture solution simultaneously stimulated lateral root growth. Concentrations of Na^＋ in plant tissues were also significantly increased by higher NaCl treatments （P 〈 0.001）. At 10 mmol L^-1 NO^-3. the concentrations of NO^-3.and total nitrogen and nitrate reductase activities in the roots were remarkably reduced by increasing salinity （P 〈 0.001）, but were unaffected in the shoots. The results indicated that the fine lateral root development and effective nitrogen uptake of the shoots might contribute to high salt tolerance of S. physophora under adequate NO^-3.supply.

关键词： halophyte lateral roots nitrate reductase activity root morphology

Coupling of water and land resources and its application in regionalization

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Journal of Environmental sciences 1999年第1期11卷 17-21页

作者： Chen Jian yao, Liu Chang ming institute of Geography, chinese academy of sciences, Beijing 100101, china E mail: chenjy@***

This paper focuses on the coupling of water and land resources based on several factors related closely to either water or land resources, which have become a topical subject due to the economic expansion and their sustainable development in recent years. A case of Qihe County in Shangdong Province, china has been used to demonstrate the methodology of the coupling and its application in regionalization with the help of geographical information system (GIS) tool. Field observation and measurement of soil salt and moisture in several profiles are used to verify the results of the coupling, which gives reasonable distribution of different areas regarding to the advantages and disadvantages for sustainable agriculture.

关键词： coupling water resource land resource regionalization.

Characterization of Arabidopsis calreticulin mutants in response to calcium and salinity stresses

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Progress in Natural Science:Materials International 2008年第10期18卷 1219-1224页

作者： Zhigang Li Yangrong Cao Jinsong Zhang Shouyi Chen institute of Genetics and Developmental Biology,chinese academy of {3.,National Key Laboratory of Plant Genomics,Chaoyang District,Datun Road,Beijing 100101,china institute of Genetics and Developmental Biology Chinese Academy of Sciences National Key Laboratory of Plant Genomics Chaoyang District Datun Road Beijing 100101 China

As an important calcium-binding protein,calreticulin plays an important role in regulating calcium homeostasis in endoplasmic retic- ulum (ER) of ***,we identified three loss-of-function mutants of calreticulin genes in Arabidopsis to demonstrate the function of calreticulin in response to calcium and salinity *** are three genes encoding calreticulin in Arabidopsis,and they are named AtCRT1,2,and 3.*** found that both single mutant of crt3.and double mutant of crtl crt2 were more sensitive to low calcium environment than wild-type ***,crt3.mutant showed more sensitivity to salt treatment at germination stage, but tolerance to salt stress at later stage compared with wild-type ***,there was no obvious growth difference in the mutant crtl and crt2 compared with wild-type Arabidopsis under calcium and salt *** results suggest that calreticulin functions in plant responses to calcium and salt stresses.

关键词： Calreticulin Calcium Stress Arabidopsis

A 290-a record of atmospheric circulation over the North Pacific from a Mt. Logan ice core, Yukon Territory

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Acta Oceanologica Sinica 2005年第4期24卷 81-90页

作者： KANG Shichang MAYEWSKI Paul A YAN Yuping institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing 100085 China Climate Change institute University of Maine Orono ME 04469 USA Laboratory of Cryosphere and Environment Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China National Climate Center Beijing 100081 China

Calibrations between sodium （Na^＋） concentrations from a Mt. Logan ice core and sea level pressure （SLP） series show that Na^＋ concentrations are closely correlated with the autumn-time （September-October-November） Aleutian low （AleuLow）. A deepening of the AleuLow strengthens the transport of sea-salt aerosols from the North Pacific to the Mt. Logan region. The Mt. Logan Na^＋ record is used to develop a 292 a （1688-1979） reconstruction of the AleuLow revealing a dramatic intensification of atmospheric circulation over the North Pacific region since the 20th century. Mean SLP of the AleuLow was about 1 hPa lower during the 20th century than during prior periods. The strongest deepening of the AleuLow appeared in the 1950s. Significant correlations are also found between the Mt. Logan AleuLow proxy series and the Pacific decadal oscillation （PDO） and Pacific circulation （PC） index during the 20th century. Evolutionary spectral analysis of the proxy record shows significant periodicities from 15 to 3. a consistent with PDO fluctuations and the bidecadal oscillation of North Pacific atmosphere-ocean circulation. A period of 11 a in the AleuLow record may be associated with the Schwabe 11-a cycle of sunspot activity. Additional longer ice core records from this region will aid in the efforts to further understand the climatic change over the North Pacific region.

关键词： atmospheric circulation ice core records North Pacific

南极普里滋湾拉斯曼丘陵富硼层Gdd-Krn-Trn矿物硼同位素指示的地质环境(英文)

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南极普里滋湾拉斯曼丘陵富硼层Gdd-Krn-Trn矿物硼同位素指示的地...

salt-responsive genes in rice revealed by cDNA microarray analysis

高分辨记录与同位素技术在环境变化研究中的应用全国学术讨论会

作者： Yanbin WANG Yingkai XIAO Gang WANG (institute of Geology, chinese academy of Geological {3., Beijing 10003., china) (Qinghai institute of salt lakes, chinese academy of sciences, xining 810008, china)

The mass spectrometry of the boron isotopes differs from that of the other light stable isotopes in the thermal ionization is the usual methods as opposed to electron impact ionization. A number of different ions have been utilized over the years for boron isotopic analysis including BF2+, Na2BO2+, Li2BO2+, Rb2BO2+, BO2-, and

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来源： cnki会议评论

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Cell Research 2005年第10期 50-64页

作者： Dai Yin CHAO1,3. Yong Hai LUO1,3. Min SHI1, Da LUO1,2, Hong Xuan LIN1,2,* 1National Key Laboratory of Plant Molecular Genetics, Shanghai institute of Plant Physiology and Ecology, Shanghai institutes for Biological sciences,{3., 3.0 Fenglin Road, Shanghai 20003., china, 2SHARF Laboratory, Shanghai institute of Plant Physiology and Ecology, Shanghai institutes for Biological sciences,{3., 3.0 Fenglin Road, Shanghai 20003., china, 3.raduate School of the{3. (D.C.), 19 Yuquan Road, Beijing 10003., china

We used cDNA microarrays containing ~9,000 unigenes to identify 486 salt responsive expressed sequence tags (ESTs) (representing ~450 unigenes) in shoots of the highly salt-tolerant rice variety, Nona Bokra (Oryza sativa L. ssp. Indica pv. Nona). Some of the genes identified in this study had previously been associated with salt stress. However the majority were novel, indicating that there is a great number of genes that are induced by salt exposure. Analysis of the salt stress expression profile data of Nona provided clues regarding some putative cellular and molecular processes that are undertaken by this tolerant rice variety in response to salt stress. Namely, we found that multiple transcription factors were induced during the initial salt response of shoots. Many genes whose encoded proteins are implicated in detoxification, protectant and transport were rapidly induced. Genes supporting photosynthesis were repressed and those supporting carbohydrate metabolism were altered. Commonality among the genes induced by salt exposure with those induced during senescence and biotic stress responses suggests that there are shared signaling pathways among these processes. We further compared the transcriptome changes of the salt-sensitive cultivar, IR28, with that of Nona rice. Many genes that are salt responsive in Nona were found to be differentially regulated in IR28. This study identified a large number of candidate functional genes that appear to be involved in salt tolerance and further examination of these genes may enable the molecular basis of salt tolerance to be elucidated.

关键词： cDNA microarray rice salt stress signaling crosstalk transcriptome.

Synthesis of Monoclinic Form of Gd_(2-x)Na_xCuO_4 by Direct Precipitation from Molten salt

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chinese Chemical Letters 2000年第2期11卷 185-188页

作者： Lin ZHANG Liang Zhong ZHAO Jin Biao ZHANG Cui Ying XU Shi Hong LIU (institute of Chemistry, chinese academy of sciences, Beijing, 100080) chinese Acad Sci Inst Chem Beijing 100080 Peoples R China

A new phase of Gd_(2-x)Na_xCuO_4 was synthesized by direct precipitation from the mixture of Gd_2O_3.and CuO in the molten KOH/NaOH/KNO_3.solution at temperature as low as 280℃. The resulting precipitate was characterized by using SEM, XRD, EDX, XPS and magnetic method. The XRD data indicate that the precipitated Gd_(2-x)Na_xCuO_4 is monoclinic with lattice parameters a=8.6816, b=3.723.. c=6.0796. a=γ=90', 0=108.75° and V=186. 13.

关键词： Chemical synthesis gadolinium cuprate monoclinic phase.

Determination and vertical distribution of nitrogen species in sediments of Funan Rivers, Chengdu City, china

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Acta Geochimica 2006年第S1期 143-144页

作者： Yi WU1, Tingting WANG1, Qing XU1, Mengxia LIAO1, Tianong DENG1,2 1 College of Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu 610059, china 2 Qinghai institute of salt {3., chinese academy of sciences,xining 810008, china

THE WETLAND TYPES,FUNCTIONS ANDCONSERVATION IN china

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chinese Geographical Science 2001年第4期11卷 14-19页

作者： ZHAO Kui-yi, HE Chi-quan( Changchun institute of Geography, the chinese academy of sciences, Changchun 13.021, P. R. china)

ABSTRACT: According to preliminary statistics, there are 9. 4 ×106ha of mire, 8. 0 × 106ha of lake, 2. 1 × 106ha of salt marsh, 2.1 × 107ha of shallow sea (0 - 5m), and 3. 8 × 107ha of paddyfield, their total area amounts to 8. 45× 107ha. Wetland consists of natural wetland system and man-made wetland system. According to hydrology, landform, soil and vegetation etc., natural wetland can be divided into the following types: marine, esturine, riverine, lacustrine, palustrine subsystems. On the basis of the wetland bottom compound, waterlogged state and vegetation forms, it can be subdivided into 26 wetland classes. Man-made wetland can be subdivided into 4 wetland classes. Wetland is a unique landscape in the earth and one of the most important living environment with rich resources and many functions. At present, 262 different types of Wetland Natural Reserves have been established in china, in which 7 Wetland Nature Reserves have been listed in international important wetlands of The Wetland

关键词： wetland type wetland function wetland conservation china’s wetland