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| 1 | Characterization of Hand,Foot,and Mouth Disease in China between 2008 and 2009显示文摘Objective To investigate the epidemiological and clinical features of hand,foot and mouth disease (HFMD) since several outbreaks of HFMD caused by enteroviruses were documented in China between 2007 and 2008.Methods HFMD cases reported to the National Infectious Disease Information Management System database between May 2008 and April 2009 were assessed.Clinical features in some of the severe and fatal cases were analyzed the etiology of the outbreaks was investigated.Results 89.1% of reported HFMD cases were found in children<5 year‐old with an age‐specific incidence rate of 834.1/100 000 in the first year as the notifiable disease in China from May 2008 to April 2009.The incidence,mortality and percentage of severe cases were studied for three regions of China and found to be highest in the central region.The incidence of severe cases and mortality in rural population were significantly higher than those in urban population.Among the laboratory confirmed EV17 positive cases there were 52.6% mild,83.5% severe,and 96.1% fatal cases.More myoclonic jerks were found in the severe case group than in group that died.Tachypnea,lip purpling,pink foaming and low limb temperature occurred more frequently in the fatal cases than in the severe cases.Conclusion The epidemic of HFMD in China was characterized predominantly by EV71 infections,had relatively high mortality rates especially in the central region,and was most prevalent in young,rural populations. | ZHANG Jing SUN JunLing CHANG ZhaoRui ZHANG WeiDong WANG ZiJun FENG ZiJian | 2011 | Biomedical and Environmental Sciences2011，24，3： | 74 |
| 2 | The application of CAR-T cell therapy in hematological malignancies: advantages and challenges显示文摘Chimeric antigen receptor T cell(CAR-T cell) therapy is a novel adoptive immunotherapy where T lymphocytes are engineered with synthetic receptors known as chimeric antigen receptors(CAR).The CAR-T cell is an effector T cell that recognizes and eliminates specific cancer cells, independent of major histocompatibility complex molecules. The whole procedure of CAR-T cell production is not well understood. The CAR-T cell has been used predominantly in the treatment of hematological malignancies,including acute lymphoblastic leukemia, chronic lymphocytic leukemia, lymphoma, and multiple myeloma. Solid tumors including melanoma, breast cancer and sarcoma offer great promise in CAR-T cell research and development. CD19 CAR-T cell is most commonly used, and other targets, including CD20, CD30, CD38 and CD138 are being studied. Although this novel therapy is promising, there are several disadvantages. In this review we discuss the applications of CAR-T cells in different hematological malignancies, and pave a way for future improvement on the effectiveness and persistence of these adoptive cell therapies. | Zijun Zhao Yu Chen Ngiambudulu M.Francisco Yuanqing Zhang Minhao Wu | 2018 | Acta Pharmaceutica Sinica B2018，8，4： | 22 |
| 3 | OsMYB103 is required for rice anther development by regulating tapetum development and exine formation显示文摘The Arabidopsis AtMYB103 gene is required for anther development,but whether the homologous gene in rice has the same role is unclear.Sequence analysis indicated that the rice OsMYB103 gene shares a high sequence similarity with AtMYB103.Therefore,we investigated the functional role of OsMYB103 in anther development using an RNAi approach.The OsMYB103 RNA transcript was expressed most abundantly in flowers,specifically in the tapetum,premeiotic pollen mother cells,and meiotic PMCs.OsMYB103-RNAi transgenic lines grew normally during their vegetative phase but displayed reduced male fertility,a phenotype that was associated with downregulated OsMYB103 transcript levels.Expression of OsMS2,an ortholog of the Arabidopsis AtMS2 gene,was also dramatically reduced in the transgenic plants.Knockdown of OsMYB103 led to defects in tapetum development,and most of the microspores in mature anthers lacked exines.Moreover,OsMYB103 could partially rescue the male sterility phenotype of an AtMYB103 knockout mutant ms188.Taken together,these results indicate that OsMYB103 does have an important role in rice tapetum and microspore development. | ZHANG Sen FANG ZiJun ZHU Jun GAO JuFang YANG ZhongNan | 2010 | Chinese Science Bulletin2010，55，29： | 12 |
| 4 | Coupling Rice with Fish for Sustainable Yields and Soil Fertility in China显示文摘About 30 million hectares of rice are cultivated annually in China(FAOSTAT,2019).Because most rice fields are wellirrigated and suitable for fish living(‘fish’here refers to various aquatic animals like carps,prawns,crabs,soft shell turtles,etc.)(Fernando,1993),many efforts have been made to determine how well rice farming and aquaculture can be coupled as a rice-fish system(RFS),of which the same land and water produces both rice and aquatic products.With the technological guidance of RFSs and political supports from the Ministry of Agriculture and Rural Affairs of China since 2010(Supplemental Table 1),multiple types of large-scale,high-efficiency and technologically intensive RFSs are now being demonstrated in the main rice-growing areas of China(National Fisheries Technology Extension Centre,2019),and in total about 1.2 million hectares of rice fields are under RFSs. | GUO Liang HU Liangliang ZHAO Lufeng SHI Xiaoyu JI Zijun DING Lilian REN Weizheng ZHANG Jian TANG Jianjun CHEN Xin | 2020 | Rice science2020，27，3： | 11 |
| 5 | RESEARCH ON ZERO CLEARANCE CYCLOID BALL TRANSMISSION显示文摘RESEARCHONZEROCLEARANCECYCLOIDBALLTRANSMISSIONQuJifangAnZijunYanshanUniversityAbstract:Thesteelballtransmissionofzerogearclea... | Qu Jifang An Zijun Yanshan University | 1994 | Chinese Journal of Mechanical Engineering1994，7，1： | 9 |
| 6 | Impacts of water conservancy and soil conservation measures on annual runoff in the Chaohe River Basin during 1961-2005显示文摘Taking the Chaohe River Basin above the Miyun Reservoir in North China as a study area,the characteristics and variation trends of annual runoff and annual precipitation during 1961-2005 were analyzed applying Mann-Kendall test method on the basis of the hydrologic data of the major hydrological station(Xiahui Station) located at the outlet of the drainage basin and the meteorological data of 17 rainfall stations.Human activities including water conservancy projects construction and water diversion as well as implementation of soil and water conservation from 1961 to 2005 were carefully studied using time series contrasting method.The referenced period(1961-1980) that influenced slightly by human activities and the compared period(1981-2005) that influenced significantly by water conservancy and soil conservation measures were identified according to the runoff variation process analysis and abrupt change points detection during 1961-2005 applying double accumulative curve method,mean shift t-test method and Mann-Kendall mutation test technique.Based on the establishment of a rainfall-runoff empirical statistical model,impacts and the runoff-reducing effects of water conservancy and soil conservation measures on runoff reduction were evaluated quantitatively.The major results could be summarized as follows:(1) The annual precipitation in the drainage basin tends to decrease while the runoff has declined markedly since the 1960s,the average annual runoff from 1991 to 2000 was only 90.9% in proportion to that from 1961 to 1970.(2) The annual runoff variations in the drainage basin are significantly related to human activities.(3) During 1981-1990,1991-2000,2001-2005 and 1981-2005,the average annual runoff reduction amounts were 1.15×108,0.28×108,1.10×108 and 0.79×108 m3 respectively and the average annual runoff-reducing effects were 31.99%,7.13%,40.71% and 23.79% accordingly.Runoff-reducing effects by water conservancy and soil conservation measures are more prominent in the low water period. | LI Zijun LI Xiubin XU Zhimei | 2010 | Journal of Geographical Sciences2010，20，6： | 8 |
| 7 | Internal tide characteristics over northern South China Sea continental slope显示文摘21-day in-situ ADCP current and CTD data from an anchored observational station by R/V Shiyan 3 are used to investigate the characteristics of internal tide in the northern South China Sea continental slope. The results show that tide and internal tide are both mixed type in the observed region and dominated by diurnals; the maximum internal tidal major axes of K1, O1 were largest and reached 11 cm/s, 10 cm/s, respectively, and their current vectors rotate anticlockwise. The 300 m-deep internal tide presents obvious quasi-diurnal oscillation and its average amplitude reaches 50 m. Furthermore, internal tide carried high energy; in the upper layers above 140 m, the kinetic energy of internal tides accounts for 15%-37% of overall kinetic energy, most of internal tide energy concentrates around the thermocline. | GUO Pu FANG Wendong GAN Zijun CHEN Rongyu LONG Xiaomin | 2006 | Chinese Science Bulletin2006，51，B12： | 8 |
| 8 | Chimeric antigen receptor T cells in solid tumors: a war against the tumor microenvironment显示文摘Chimeric antigen receptor(CAR) T cell is a novel approach, which utilizes anti-tumor immunity for cancer treatment. As compared to the traditional cell-mediated immunity, CAR-T possesses the improved specificity of tumor antigens and independent cytotoxicity from major histocompatibility complex molecules through a monoclonal antibody in addition to the Tcell receptor. CAR-T cell has proven its effectiveness, primarily in hematological malignancies, specifically where the CD19 CAR-T cells were used to treat B-cell acute lymphoblastic leukemia and B-cell lymphomas. Nevertheless, there is little progress in the treatment of solid tumors despite the fact that many CAR agents have been created to target tumor antigens such as CEA,EGFR/EGFRvIII, GD2, HER2, MSLN, MUC1, and other antigens. The main obstruction against the progress of research in solid tumors is the tumor microenvironment, in which several elements, such as poor locating ability, immunosuppressive cells,cytokines, chemokines, immunosuppressive checkpoints, inhibitory metabolic factors, tumor antigen loss, and antigen heterogeneity, could affect the potency of CAR-T cells. To overcome these hurdles, researchers have reconstructed the CAR-T cells in various ways. The purpose of this review is to summarize the current research in this field, analyze the mechanisms of the major barriers mentioned above, outline the main solutions, and discuss the outlook of this novel immunotherapeutic modality. | Zijun Zhao Xiaoyun Xiao Phei Er Saw Wei Wu Hongyan Huang Jiewen Chen Yan Nie | 2020 | Science China(Life Sciences)2020，63，2： | 7 |
| 9 | Hydrogenation Conversion of Phenanthrene over Dispersed Mo-based Catalysts显示文摘With oil-soluble molybdenum compound and sublimed sulfur serving as raw materials, two dispersed Mo-based catalysts were prepared, characterized and then applied to the hydrogenation conversion of phenanthrene. The test results showed that under the conditions specified by this study, the catalyst prepared in a higher sulfiding atmosphere was more catalytically active due to its higher content of MoS2 and stronger intrinsic catalytic activity of MoS2 unit, which demonstrated that the sulfiding atmosphere for the preparation of catalysts not only could influence the yield of MoS2 but also the structure of MoS2.The analysis on the selectivity of octahydrophenanthrene isomers revealed that the catalyst prepared in a lower sulfiding atmosphere had a relatively higher catalytic selectivity to the hydrogenation of outer aromatic ring and the structure of catalysts could be modified under the specific reaction conditions. Moreover, the selectivity between the isomers of as-octahydrophenanthrene at different reaction time and temperature was analyzed and, based on the results, a hydrogenation mechanism over dispersed Mo-based catalysts was suggested, with monatomic hydrogen transfer and catalytic surface desorption of the half-addition intermediates functioning as the key points. In addition, it is concluded that the catalyst prepared in a lower sulfiding atmosphere was more capable of adsorption than the other one. | Hu Yiwen Da Zhijian Wang Zijun | 2015 | China Petroleum Processing & Petrochemical Technology2015，17，3： | 6 |
| 10 | Heat oscillation in the upper ocean of the southern South China Sea显示文摘Data used in this study are temperature/depth profiles taken over the upper 400 m of the ocean in the southern South China Sea (4°-14° N, 106°-120° E) for the period 1961-1973. The data are analyzed on the grid 2 (latitude) by 2 (longitude) in space and bimonthly in time. The vertically averaged temperature (TAV) over the upper 100 m of the ocean is calculated as the estimate of the heat content in the upper ocean.The TAV is cooler in the northwest region of the study area and warmer in the southeast in the annual and seasonal mean figures. The first EOF (Empirical Orthogonal Function) of anomalous TAV accounts for 41 % of the total variance for the period 1961-1973. The time function associated with it displays a significant interannual changes in the heat content, with 2-4 a oscillation period and associated with the ENSO events. During ENSO event TAV increases with the tendency of increasing towards equator along the basin. This anomalous states also exist in the water layers below 100 m depth. | He Youhai, Guan Cuihua and Gan Zijun South China Sea Institute of Oceanology, Academia Sinica, Guangzhou 510301, China | 1992 | Acta Oceanologica Sinica1992，11，3： | 5 |
| 11 | Rates of bacterial sulfate reduction and their response to experimental temperature changes in coastal sediments of Qi'ao Island, Zhujiang River Estuary in China显示文摘Subtropical sediment cores(QA09-1 and QA12-9) from the coastal zone of Qi'ao Island in the Zhujiang River Estuary were used to determine the rates of sulfate reduction and their response to experimental temperature changes. The depth distribution of the sulfate reduction rates was measured from whole-core incubations with radioactive tracer 35SO42-, and peaks of 181.19 nmol/(cm3·d) and 107.49 nmol/(cm3·d) were exhibited at stations QA09-1 and QA12-9, respectively. The profiles of the pore water methane and sulfate concentrations demonstrated that anaerobic oxidation of methane occurred in the study area, which resulted in an increase in the sulfate reduction rate at the base of the sulfate-reducing zone. Meanwhile, the sulfate concentration was not a major limiting factor for controlling the rates of sulfate reduction. In addition, the incubation of the sediment slurries in a block with a temperature gradient showed that the optimum temperature for the sulfate reduction reaction was 36℃. The Arrhenius plot was linear from the lowest temperature to the optimum temperature, and the activation energy was at the lower end of the range of previously reported values. The results suggested that the ambient temperature regime of marine environments probably selected for the microbial population with the best-suited physiology for the respective environment. | WU Zijun ZHOU Huaiyang PENG Xiaotong LI Jiangtao CHEN Guangqian | 2014 | Acta Oceanologica Sinica2014，33，8： | 5 |
| 12 | Microbe-related precipitation of iron and silica in the Edmond deep-sea hydrothermal vent field on the Central Indian Ridge显示文摘Microbial mats, several millimeters thick and brown-yellow to white in color, were collected in hollow inside of chimney structure from Edmond hydrothermal field on the Central Indian Ridge. Microbes with shapes of rod and helical stalk-like filaments were observed in the microbial mats, and are com- monly characterized by their cells completely encrusted by thick mineralized layers, made up of large amounts of amorphous silica and minor amounts of iron oxides. Transmission Electron Microscope observation has demonstrated that the acicular Fe-bearing matter was not only heterogenously dis- tributed on the surface of the cell wall, but also deposited in the inside of cell, suggesting that bio-precipitation of Fe had occurred both on the surface and in the interior of cell. Microbial silicification was also commonly found in the mats. Silica usually precipitated homogeneously on the surface of the microbes and forms micro-laminated layers, which might be controlled by the inorganic process of precipitation in hydrothermal environment. The biomineralization phenomenon in the mi- crobial mats showed that the precipitation of Fe and Si was closely related to microbes in hydrothermal environment. Considering that hydrothermal activities provided required chemical elements for miner- alization, it is suggested that this biomineralization process also might be driven by hydrothermal ac- tivities at the sea floor to some extent. | PENG XiaoTong ZHOU HuaiYang YAO HuiQiang LI diangTao TANG Song JIANG Lei WU ZiJun | 2007 | Chinese Science Bulletin2007，52，23： | 5 |
| 13 | Advances in metal halide perovskite lasers: synthetic strategies, morphology control, and lasing emission显示文摘.In the past decade,lead halide perovskites have emerged as potential optoelectronic materials in the fields of light-emitting diode,solar cell,photodetector,and laser,due to their low-cost synthesis method,tunable bandgap,high quantum yield,large absorption,gain coefficient,and low trap-state densities.In this review,we present a comprehensive discussion of lead halide perovskite applications,with an emphasis on recent advances in synthetic strategies,morphology control,and lasing performance.In particular,the synthetic strategies of solution and vapor progress and the morphology control of perovskite nanocrystals are reviewed.Furthermore,we systematically discuss the latest development of perovskite laser with various fundamental performances,which are highly dependent on the dimension and size of nanocrystals.Finally,considering current challenges and perspectives on the development of lead halide perovskite nanocrystals,we provide an outlook on achieving high-quality lead perovskite lasers and expanding their practical applications. | Zhiping Hu Zhengzheng Liu Zijun Zhan Tongchao Shi Juan Du Xiaosheng Tang Yuxin Leng | 2021 | Advanced Photonics2021，3，3： | 5 |
| 14 | Laser Additive Manufacturing on Metal Matrix Composites: A Review显示文摘Important progresses in the study of laser additive manufacturing on metal matrix composites(MMCs)have been made.Recent efforts and advances in additive manufacturing on 5 types of MMCs are presented and reviewed.The main focus is on the material design,the combination of reinforcement and the metal matrix,the synthesis principle during the manufacturing process,and the resulted microstructures as well as properties.Thereafter,the trend of development in future is forecasted,including:Formation mechanism and reinforcement principle of strengthening phase;Material and process design to actively achieve expected performance;Innovative structure design based on the special properties of laser AM MMCs;Simulation,monitoring and optimization in the process of laser AM MMCs. | Neng Li Wei Liu Yan Wang Zijun Zhao Taiqi Yan Guohui Zhang Huaping Xiong | 2021 | Chinese Journal of Mechanical Engineering2021，34，3： | 4 |
| 15 | Anaerobic oxidation of methane: Geochemical evidence from pore-water in coastal sediments of Qi’ao Island (Pearl River Estuary), southern China显示文摘The concentrations of CH4 and SO42? in pore-water and the carbon isotope compositions of total dissolved inorganic (ΣCO2) and CH4 were de- termined for three coastal sedimentary cores col- lected from Qi’ao Island (Pearl River Estuary), southern China. Results show that methane concen- tration changes dramatically at the base of the sul- fate-reducing zone and sulfate concentration gradi- ents are linear for all stations. In addition, the carbon isotope of methane becomes heavier at the sul- fate-methane transition (SMT), which causes ΣCO2-δ 13C to become the minimum. The geo- chemical profiles of pore-water render indirect evi- dence for anaerobic oxidation of methane (AOM). Based on numerical modeling of AOM and sul- fate-reducing rates, the portion of total sulfate reduc- tion occurring via AOM is 9.0%, 84% and 45.5%, re- spectively, and the percentage of ΣCO2 added to the pore-water is 4.7%, 72.4% and 29.45% correspond- ingly for three sites. Furthermore, it is found that the methane concentration, methane diffusive flux and the depth of SMT are controlled by the quantity and quality of sedimentary organic matter incorporated into the sediments. The great amount of organic material is favorable for rapid depletion of sulfate via sedimentary organic matter degradation, and on the other hand, causes the increase of the methane flux in the SMT, which results in a portion of sulfate re-duction supported by AOM. Accordingly, the SMT was shifted towards the sediment surface. | WU Zijun ZHOU Huaiyang PENG Xiaotong CHEN Guangqian | 2006 | Chinese Science Bulletin2006，51，16： | 4 |
| 16 | Characterization of Catalytic Cracking Catalysts Regenerated by Gasifying Deposited Coke显示文摘部分或充分改革的催化裂开的催化剂被气化准备在一张固定的使流体化的床(FFB ) 上与氧和蒸气的气体的混合物在 coked 催化剂上扔的焦炭。结果的样品被象氮吸附解吸附作用分析那样的不同方法描绘,X光检查 diffractometry ,红外线的光谱学,氨规划温度的解吸附作用( NH3-TPD )方法,X光检查荧光( XRF )分析,传播电子显微镜学和精力散X光检查光谱学( TEM-EDX ), thermal-gravimetric 分析( TGA )和微分热分析( DTA )。结果显示了催化剂的那暴露在 800 不能引起焦炭等同到大约 0.27 m% 的催化剂,和数量的太多破坏的温度冒热气大约 10 分钟是足够的近似堵住所有酸地点在沸石催化剂微毛孔。科克没在能被附近的金属原子的催化行动加速的焦炭烧离开期间显示出相等的反应。然而,当催化剂上的碳内容到达了大约 2.44 m% 时,催化剂上的金属的催化行动不是明显的。严重热、热水的环境能在到在在大约为 30 分钟的 860-880 的范围的温度的蒸气的催化剂的暴露期间导致毛孔结构和水晶阶段的转变的倒塌并且因而在催化剂上表面区域和酸数量减少。 | Men Xiujie Zhan Shuhong Li Yanjun Wu Zhiguo Wang Zijun Wang Xieqing (Research Institute of Petroleum Processing,SINOPEC,Beijing 100083) | 2010 | China Petroleum Processing & Petrochemical Technology2010，12，1： | 4 |
| 17 | Research on water ice content in Cabeus crater using the data from the microwave radiometer onboard Chang’e-1 satellite显示文摘The existence, formation and content of water ice in the lunar permanently shaded region is one of the important questions for the current Moon study. On October 9, 2009, the LCROSS mission spacecraft impacted the Moon, and the initial result verified the existence of water on the Moon. But the study on formation and content of water ice is still under debate. The existence of water ice can change the dielectric constants of the lunar regolith, and a microwave radiometer is most sensitive to the dielectric parameters. Based on this, in this paper, the radiation transfer model is improved according to the simulation results in high frequency. Then the mixture dielectric constant models, including Odelevsky model, Wagner and landau-Lifshitz model, Clau-sius model, Gruggeman-Hanai model, etc., are analyzed and compared. The analyzing results indicate that the biggest difference occurs between Lichtenecker model and the improved Dobson model. The values estimated by refractive model are the second biggest in all the models. And the results from Odelevsky model, strong fluctuation model, Wagner and Landau –Lifshitz model, Clausius model and Bruggeman-Hanai model are very near to each other. Thereafter, the relation between volume water ice content and microwave brightness temperature is constructed with Odelevsky mixing dielectric model and the improved radiative transfer simulation, and the volume water ice content in Cabeus crater is retrieved with the data from microwave radiometer onboard Chang’e-1 satellite. The results present that the improved radiative transfer model is proper for the brightness temperature simulation of the one infinite regolith layer in high frequency. The brightness temperature in Cabeus crater is 69.93 K (37 GHz), and the corresponding volume water ice content is about 2.8%. | MENG ZhiGuo 1 , CHEN ShengBo 1* , Edward Matthew OSEI Jnr 2 , WANG ZiJun 1 & CUI TengFei 1 1 College of Geoexploration Science and Technology, Jilin University, Changchun 130026, China 2 Department of Geomatic Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，12： | 4 |
| 18 | Coupled relationships among anammox,denitrification, and dissimilatory nitrate reduction to ammonium along salinity gradients in a Chinese estuarine wetland显示文摘Salinization in estuarine wetlands significantly alters the balance between their nitrogen(N)removal and retention abilities but these processes have not yet been characterized effectively.In the present study,the potential rates of sediment denitrification,anaerobic ammonium oxidation(anammox),and dissimilatory nitrate reduction to ammonium(DNRA)were mapped using N isotope tracing methods along salinity gradients across the Yellow River Delta wetland(YRDW)in China.The contribution of anammox to total dissimilatory N transformations in YRDW was merely 6.8%,whereas denitrification and DNRA contributed 52.3%and 40.9%,respectively.The potential rate of denitrification(5.82μmol/kg/h)decreased significantly along salinity gradients and markedly exceeded DNRA potential rate(2.7μmol/kg/h)in fresh wetlands,but was lower than that of DNRA in oligohaline wetlands(3.06 and 3.18μmol/kg/h,respectively).Moreover,a significantly positive relationship between salinity and DNRA/denitrification was obeserved,indicating that increased salinity may favor DNRA over denitrification.Furthermore,total sulfur(TS)content and ratio of total organic carbon to total nitrogen(C/N)increased with the salinity gradient and showed evident positive relationships with the DNRA/denitrification ratio.In this study,we proved that increased salinization resulted in the dominance of DNRA over denitrification,possible through the addition of S and alteration of the C/N in estuarine wetlands,leading to increased N retention in estuarine wetlands during salinization,which would enhance the eutrophication potential within wetlands and in downstream ecosystems. | Zijun Zhou Lei Ge Yufang Huang Yuqian Liu Siyang Wang | 2021 | Journal of Environmental Sciences2021，33，8： | 4 |
| 19 | Detection of methane plumes in the water column of Logatchev hydrothermal vent field,Mid-Atlantic Ridge显示文摘During DY105-17 cruise onboard the R/V 'Da Yang Yi Hao' in 2005,methane concentrations in the wa-ter column above Logachev hydrothermal vent field were measured by applying stripping/trapping-gas chromatographic (GC) and the distinct methane plumes were detected. Results show that the back-ground methane concentration within the Logachev area is from 1.05 nmol/L to 1.68 nmol/L,signifi-cantly higher than the background level of the Atlantic abyssal plain of 0.4―0.5 nmol/L,suggesting that hydrothermal venting is a major source of dissolved methane to the ocean. The highest anomalies of methane concentrations in the water column range from 7.14 nmol/L to 113.9 nmol/L and occur just at 180―500 m above the seafloor. The distribution of methane concentration and the structural charac-teristics of hydrothermal plumes are strongly influenced by the supply of underlying hydrothermal fluids,the mixing process of ocean bottom currents and the microbial oxidation. Furthermore,the dif-ferences in distribution of methane plume between the station MAR-CTD3 and the other stations indi-cate a probable unknown hydrothermal vent site nearby. There occurs high concentration of methane along with temperature and nephelometry anomalies,which strongly confirms that the subtle meas-urement of methane concentration in water column is one of the effective ways to locate active sites of hydrothermal venting. | ZHOU HuaiYang WU ZiJun PENG XiaoTong JIANG Lei TANG Song | 2007 | Chinese Science Bulletin2007，52，15： | 4 |
| 20 | Microfilament Dynamics is Required for Root Growth under Alkaline Stress in Arabidopsis显示文摘The microfilament (MF) cytoskeleton has crucial functions in plant development.Recent studies have revealed the function of MFs in diverse stress response.Alkaline stress is harmful to plant growth;however,it remains unclear whether the MFs play a role in alkaline stress.In the present study,we find that blocking MF assembly with latrunculin B (Lat B) leads to inhibition of plant root growth,and stabilization of MFs with phalloidin does not significantly affect plant root growth under normal conditions.In high external pH conditions,MF de-polymerization is induced and that associates with the reduction of root growth;phalloidin treatment partially rescues this reduction.Moreover,Lat B treatment further decreases the survival rate of seedlings growing in high external pH conditions.However,a high external pH (8.0) does not affect MF stability in vitro.Taken together,our results suggest that alkaline stress may trigger a signal that leads the dynamics of MFs and in turn regulates root growth. | Yue Zhou Zijun Yang Guangqin Guo Yan Guo | 2010 | Journal of Integrative Plant Biology2010，52，11： | 3 |
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