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| 1 | Differential mercury volatilization by tobacco organs expressing a modi-fied bacterial merA gene显示文摘Mercury pollution is a major environmental problem accompanying industrial activities. Most of the mercury released ends up and retained in the soil as complexes of the toxic ionic mercury (Hg2+), which then can be converted by microbes into the even more toxic methylmercury which tends to bioaccumulate. Mercury detoxification of the soil can also occur by microbes converting the ionic mercury into the least toxic metallic mercury (Hg0) form, which then evaporates. The remediation potentia1 of transgenic plants carrying the MerA gene from E. coLi encoding mercuric ion reductase could be evaluated. A modified version of the gene, optimized for plant codon preferences (merApe9, Rugh et al. 1996), was introduced into tobacco by Agrobacterium-mediated leaf disk transformation. Transgenic seeds were resistant to HgCl2 at 50 μM and some of them (10-20% ) could germinate on media containing as much as 350 μM HgCl2, while the control plants were fully inhibited or died on 50 μM HgCl2. The rate of elemental mercury evolution from Hg2+ (added as HgCl2) was 5-8 times higher for transgenic plants than the control. Mercury volatilization by isolated organs standardized for fresh weight was higher (up to 5 times) in the roots than in shoots or the leaves. The data suggest that it is the root system of the transgenic plants that volatilizes most of the reduced mercury (Hg0). It also suggests that much of the mercury need not enter the vascular system to be transported to the leaves for volatilization. Thansgenic plants with the merApe9 gene may be used to mercury detoxification for environmental improvement in mercury-- contaminated regions more efficiently than it had been predicted based on data on volatilization of whole plants via the upper parts only (Rugh et al. 1996). | HE YU KE, JIAN GE SUN, XIAN ZHONG FENG, MIHALY CZAKU, LASZLO MARTON Depariment of Biological Sciences, University of South Carolina, 700 Sumter Street, Columbia, SC29208, USA National Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Phy | 2001 | Cell Research2001，11，3： | 14 |
| 2 | The Ternary Goldbach Problem with Primes in Arithmetic Progressions | Zhen Feng ZHANG Tian Ze WANG State Key Laboratory of Information Security, Graduate School, Chinese Academy of Sciences, Beijing 100039, P. R. China Depariment of Mathematics, Henan University, Kaifeng 475001, P. R. China Department of Mathematics, Henan University, Kaifeng 475001, P. R. China | 2001 | Acta Mathematica Sinica,English Series2001，17，4： | 3 |
| 3 | High concentration of calcium ions in Golgi apparatus显示文摘The interphase NIH3T3 cells were vitally fluorescentstained with calcium indicator fluo-3 and Glogi probe C6NBD-ceramide, and then the single cells were examined by laser scanning confocal microscopy (LSCFM) for subcellular distributions of Ca2+ and the location of Golgi apparatus. In these cells, the intracellular Ca2+ were found to be highly concentrated in the Golgi apparatus. The changes of distribution of cytosolic high Ca2+ region and the Golgi apparatus coincided with the cell cycle phase.In calcium free medium, when the plasma membrane of the cells which had been loaded with fluo-3/AM were permeated by digitonin, the fluorescence of the Golgi region decreased far less than that of the cytosol. Our results indicated that the Glogi lumen retained significantly high concentration of free calcium. | XUE SHAOBAI M. RoBERT NICOUD JIE CUI D.J.ARNDT JOVIN(Depariment of Biology, Beijing Normal University, Beijing 100875, China)(Max-Planck-Institute fur Biophysikalische Chemie,Gottingen, Germany) | 1994 | Cell Research1994，4，1： | 3 |
| 4 | MODELS OF ASYNCHRONOUS MRALLEL NONLINEAR MULTISPLITTING RELAXED ITERATIONS显示文摘In the sense of the nonlinear multisplitting and based on the principle of suffi-ciently using the delayed information, we propose models of asynchronous parallelaccelerated overrelaxation iteration methods for solving large scale system of non-linear equations. Under proper conditions, we set up the local convergence theoriesof these new method models. | Z.Z. Bai(Institute of Computational Mathematics and Scientific/Engineering Computing,Chinese Academy of Sciences, Beijing, China)D.R. Wang(Depariment of Mathematics, Shanghai University of Science and Technology,Shanghai, China)D.J. Evans(Parallel Algorit | 1995 | Journal of Computational Mathematics1995，13，4： | 2 |
| 5 | Effect of Lime Nitrogen on the Transformation of Ureain Soils显示文摘EffectofLimeNitrogenontheTransformationofUreainSoilsHENIAN-ZU;YUSHEN;YEZHI-QIAN;OUYANGHANGandXIONGJIN-SHAN(DeparimentofLandSc... | HE NIAN-ZU YU SHEN YE ZHI-QIAN OUYANG HANG and XIONG JIN-SHAN(Depariment of Land Science and APPlied Chemistry, Zhejtang Agricultural University, Hangzhou 310029( China)(Institrte of Soil Science, Academia Sintica, Nanjing 210008 (China)(Juhua Gr | 1995 | Pedosphere1995，5，3： | 2 |
| 6 | BILEVEL PROGRAMS WITH MULTIPLE FOLLOWERS显示文摘In this paper, we are concerned with bilevel programs with multiple followers. Three new solution concepts are introduced for a bilevel programming problem with multiple followers. First, one sufficient condition for the existence of a Nash equilibrium reaction is presented and the continuity of the reaction set is discussed. Next, we show that a class of bilevel programs with multiple followers can be solved via solving a corresponding bilevel program with a single follower. Finally on the basis of a theorem proved via applying the Kuhn-Tucker conditions to the inner game problem, a branch and bound technique is developed for bilevel program with multiple followers. Two numerical examples are also given to illustrate the algorithm. | WANG Qian(Department of Industrial Engineering, State University of New York at Buffalo,Buffalo, NY 14260, USA)YANG Fengmei(Depariment of Applied Mathematics and Physics, Beijing University of Chemical Technology,Beijing 100029, China)WANG Shouyang(Instit | 2000 | Systems Science and Mathematical Sciences2000，13，3： | 2 |
| 7 | Non-polar a -plane ZnMgO/ZnO quantum wells grown by molecular beam epitaxy显示文摘 | J-M Chauveau M Laügt P Venneguès M Teisseire B Lo C Deparis C Morhain B Vinter | 2008 | Semiconductor Science and Technology2008，，3： | 1 |
| 8 | Structurally tuned iri- descent surfaces inspired by nature 显示文摘 | Deparis O Rassart M Vandenbem C | 2008 | New Journal of Physics2008，10，1： | 1 |
| 9 | Quasi- Isothermal Expansion Engines for Liquid Nitrogen Automotive Propulsion 显示文摘 | Knowlen C Williams J Manick A T Deparis H Hertzberg A | 1997 | SAE 9726491997，，： | 1 |
| 10 | Promoting effect of rapeseed proteins and peptides on sf 9 insect cell growth 显示文摘 | DEPARIS V DURRIEU C SCHWEIZER M | 2003 | Cytotechnology2003，42，2： | 1 |
| 11 | Bread baking aromas detection by low-cost electronic nose显示文摘 | Ponzoni A Depari A Falasconi M Comini E Flammini A Marioli D Taroni A Sberveglieri G | | 0，，： | 1 |
| 12 | Application of an ANFIS algorithm to sensor data processing显示文摘 | Depari A Flammini A: Marioli D | 2007 | IEEE Transactions on Instrumentation and Measurement2007，1，2： | 1 |
| 13 | Supermode noise of harmonically mode locked erbium fiber laser with composite cavity显示文摘 | POTFIEZ O DEPARIS O | 2002 | IEEE Journal of Quantum Electronics2002，38，3： | 1 |
| 14 | Red blood cells and he-moglobin concentration in normal diploid and several typesof polyploid salamanders显示文摘 | Deparis P Beetschen J C Jaylet A | 1975 | Comparative Biochemistry andPhysiology Part A:Physiology1975，50，2： | 1 |
| 15 | Elevated levels of total and dengue virus-specific immunoglobulin E in patients with varying disease severity显示文摘 | Koraka P Murgue B Deparis X | 2003 | J Med Virol2003，70，： | 1 |
| 16 | Super-Mode Noise of Harmon- ieally Mode Locked Erbium Fiber Laser with CompositeCavity 显示文摘 | Pottiez O Deparis O | 2002 | IEEE Journal of Quantum Electronics2002，38，3： | 1 |
| 17 | Epidemiology of food-borne disease outbreaks in the French armed forces: A review of investigations conducted from 1999 to 2009显示文摘 | A. Mayet G. Manet C. Decam D. Morisson G. Bédubourg V. Pommier de Santi J.-B. Meynard G. Bornert X. Deparis R. Migliani | 2011 | Journal of Infection2011，，5： | 1 |
| 18 | Experimental Study of Super Mode Noise of Harmonically Mode Locked Erbium Doped Fiber Lasers with Composite Cavity 显示文摘 | Pottiez O Deparis O Haeherman M | 2002 | Optics Communications2002，202，1： | 1 |
| 19 | A new instru- ment for real-time Ethemet performance measurement显示文摘 | Depari A Ferrari P Flammini A | 2008 | IEEE Transactions on Instrumentation and Meas- urement2008，57，1： | 1 |
| 20 | Singular value decomposition as a denoising tool forairborne time domain electromagnetic data 显示文摘 | RENINGER P A MARTELET G DEPARIS J | 2011 | Jour- nal of Applied Geophysics2011，75，： | 1 |
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