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Petal Development in Lotus japonicus

Journal of Integrative Plant Biology 2011年第10期53卷 770-782页

作者： Lin Weng Zhaoxia Tian Xianzhong Feng Xin Li Shilei xu Xiaohe Hu Da Luo jun Yang National Key Laboratory of Plant Molecular Genetics Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Graduate School of the Chinese Academy of Sciences Chinese Academy of Sciences Shanghai 200032 China Key Laboratory of Plant Stress Research of Shandong Province College of Life Sciences Shandong Normal University Jinan 250014 China State Key Laboratory of Biocontrol School of Life Sciences Sun Yat-sen University Guangzhou 510275 China

Previous studies have demonstrated that petal shape and size in legume flowers are determined by two separate mechanisms, dorsoventral （DV） and organ internal （IN） asymmetric mechanisms, respectively. However, little is known about the molecular mechanisms controlling petal development in legumes. To address this question, we investigated petal development along the floral DV axis in Lotus japonicus with respect to cell and developmental biology by comparing wild-type legumes to mutants. Based on morphological markers, the entire course of petal development, from initiation to maturity, was grouped to define 3 phases or 13 stages. In terms of epidermal micromorphology from adaxial surface, mature petals were divided into several distinct domains, and characteristic epidermal cells of each petal differentiated at stage 9, while epidermal cells of all domains were observed until stage 12. TCP and MIXTA-like genes were found to be differentially expressed in various domains of petals at stages 9 and 12. Our results suggest that DV and IN mechanisms interplay at different stages of petal development, and their interaction at the cellular and molecular level guides the elaboration of domains within petals to achieve their ideal shape, and further suggest that TCP genes determine petal identity along the DV axis by regulatincl MIXTA-like clene expression.

关键词： CYC-like TCP genes epidermal cell Lotusjaponicus MIXTA-like genes petal.

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Discovery of 13 New Variable Stars in the Field of the Open Cluster NGC 2168 (M35)

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Chinese Journal of Astronomy and Astrophysics 2005年第4期5卷 356-362页

作者： Juei-Hwa Hu Wing-Huen Ip Xiao-Bin Zhang Zhao-Ji Jiang jun Ma xu Zhou Institute of Astronomy National Central University Chung Li 32054 Taiwan National Astronomical Observatory Chinese Academy of Sciences Beijing 100012

A wide-field time-series CCD photometric survey of variable stars in the field of the open cluster NGC 2168 was carried out using the BATC Schmidt telescope. In total 13 new variable stars are discovered with three W UMa systems,one EA type and two EB type eclipsing binaries （one of them could be a W UMa system）, and seven pulsating stars including three candidates of δ Scuti stars.

关键词： open clusters: individual (NGC 2168)-stars: variables (general)-binaries: general

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Restenosis after recanalization for Budd-Chiari syndrome: Management and long-term results of 60 patients

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World Journal of Clinical Cases 2020年第14期8卷 2930-2941页

作者： Wei Zhang Yu-Long Tian Qiao-zheng Wang Xiao-Wei Chen Qi-Yang Li Jin-Hang Han xu-Dong Chen Ke xu Department of Interventional Radiology Shenzhen People’s Hospitalthe Second Affiliated Hospital of Jinan UniversityShenzhen 518020Guangdong ProvinceChina Department of Interventional Radiology The First Affiliated Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina

BACKGROUND Budd-Chiari syndrome is defined as hepatic venous outflow tract *** Asian Budd-Chiari syndrome patients,the major treatment modality is recanalization(percutaneous transluminal angioplasty with or without stent implantation).The cumulative 1-,5-,and 10-year primary patency rates and survival rates are reported to be excellent or satisfactory,but the long-term outcome of patients with restenosis(the most common complication after recanalization)is *** To explore the treatment strategy for restenosis in patients with Budd-Chiari syndrome after interventional therapy and to evaluate the long-term follow-up *** The clinical data and follow-up results of 60 patients with restenosis after interventional therapy from November 1983 to December 2013 were retrospectively *** Sixty patients with restenosis were retrospectively divided into a percutaneous transluminal angioplasty(PTA)group(40 patients)and a PTA+stent group(20 patients)according to the primary recanalization *** the patients with restenosis in the PTA group,13 refused treatment,and 27 received further treatment;among these patients,five had a second restenosis,two had a third restenosis,and one had a fourth *** the patients with restenosis in the PTA+stent group,nine refused treatment,ten received PTA alone,and the other received PTA+stent *** the patients who received further treatment,five had a second restenosis,three had a third restenosis,and one had a fourth *** 1-,5-,10-,20-,and 25-year cumulative survival rates of the 38 patients who received further treatment after restenosis were 100%,78.3%,78.3%,70.5%,and 70.5%,respectively;however,for the 22 patients who refused treatment,the survival rates were 72.7%,45.9%,30.6%,10.2%,and unavailable,respectively(P<0.001).CONCLUSION Long-term follow-up after interventional therapy is very *** treatment for patients with restenosis can improve prognosis,an

关键词： Budd-Chiari syndrome Restenosis Long-term follow-up Treatment strategy

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Do Ureaplasma urealyticum infections in the genital tract affect semen quality?

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Asian Journal of Andrology 2006年第5期8卷 562-568页

作者： Yan Wang Cui-Ling Liang jun-Qing Wu Chen xu Shi-Xiao Qin Er-Sheng Gao Shanghai Institute of Planned Parenthood Research Fudan University Shanghai 200032 China Department of Epidemiology Shanghai Institute of Planned Parenthood Research Shanghai 200032 China Institute of Population Studies East China Normal University Shanghai 200062 China Department of Histology and Embryology School of Medicine Shanghai Jiaotong University Shanghai 200025 China

Aim： To investigate the relationship between Ureaplasma urealyticum （UU） infection and semen quality. Methods： From 2001 to 2003, 346 eligible patients aged 20-45 years were invited from two hospitals in Shanghai, China, to participate in an investigation which included questionnaires about general and reproductive health, an external genital tract examination, UU culture and semen analysis. Multiple linear regression models were used to examine whether UU had a significant effect on semen quality after adjustment for confounding factors. Results： Findings suggested that UU infection was associated with higher semen viscosity and lower semen pH value. Sperm concentration was lower in UU positive subjects than that in UU negative subjects （54.04 × 10^6/mL vs.70.58 × 10^6/mL）. However, UU did not significantly affect other semen quality indexes. Conclusion： UU infection of the male genital tract could negatively influence semen quality.

关键词： Ureaplasma urealyticum semen quality sperm concentration seminal plasma questionnaire infection

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Nonintubated uniportal video-assisted thoracoscopic surgery for primary spontaneous pneumothorax

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Chinese Journal of Cancer Research 2015年第2期27卷 197-202页

作者： Shuben Li Fei Cui jun Liu Xin xu Wenlong Shao Weiqiang Yin Hanzhang Chen Jianxing He The First Clinical College Southern Medical University Department of Cardiothoracic Surgery The First Affiliated Hospital of Guangzhou Medical University

Objective： The objective of the current study was to evaluate the feasibility and safety of nonintubated nniportal video-assisted thoracoscopic surgery （VATS） for the management of primary spontaneous pneumothorax （PSP）. Methods： From November 2011 to june 2013, 32 consecutive patients with PSP were treated by nonintubated uniportal thoracoscopic bullectomy using epidnral anaesthesia and sedation without endotracheal intubation. An incision 2 cm in length was made at the 6th intercostal space in the median axillary line. The pleural space was entered by blunt dissection for placement of a soft incision protector. Instruments were then inserted through the incision protector to perform thoracoscopic bullectomy. Data were collected within a minimum follow-up period of 10 months. Results： The average time of surgery was 49.0 rain （range, 33-65 rain）. No complications were recorded. The postoperative feeding time was 6 h. The mean postoperative chest tube drainage and hospital stay were 19.3 h and 41.6 h, respectively. The postoperative pain was mild for 30 patients （93.75%） and moderate for two patients （6.25%）. No recurrences ofpneumothorax were observed at follow-up. Conclusions： The initial results indicated that nonintubated uniportal video-assisted thoracoscopic operations are not only technically feasible, but may also be a safe and less invasive alternative for select patients in the management of PSP. This is the first report to include the use of a nonintubated uniportal technique in VATS for such a large number of PSP cases. Further work and development of instruments are needed to define the applications and advantages of this technique.

关键词： Uniportal video-assisted thoracoscopic surgery (VATS) spontaneous pneumothorax

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Geochemical and Petrological Studies on the Early Carboniferous Sidingheishan Mafic-Ultramafic Iintrusion in the Southern Margin of the Central Asian Orogenic Belt,NW China

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Acta Geologica Sinica(English Edition) 2018年第3期92卷 952-971页

作者： SUN Tao QIAN Zhuangzhi THAKURTA Joyashish YANG Shenghong xu Gang DUAN jun GAO Bo WANG Jing School of Resource Environment and Earth Sciences Yunnan University MOE Key Laboratory of Western China's Mineral Resources and Geological Engineering College of Earth Science and Recourses Chang'an University Department of Geosciences Western Michigan University Department of Geosciences University of Oulu Faculty of Land Resource Engineering Kunming University of Science and Technology

The Sidingheishan mafic-ultramafic intrusion is located in the eastern part of the Northern Tianshan Mountain, along the southern margin of the Central Asian Orogenic Belt in northern Xinjiang autonomous region of China. The Sidingheishan intrusion is mainly composed of wehrlite, olivine websterite, olivine gabbro, gabbro and hornblende gabbro. At least two pulses of magma were involved in the formation of the intrusion. The first pulse of magma produced an olivine-free unit and the second pulse produced an olivine-bearing unit. The magmas intruded the Devonian granites and *** age of 351.4±5.8 Ma(Early Carboniferous) for the Sidingheishan intrusion has been determined by U-Pb SHRIMP analysis of zircon grains separated from the olivine gabbro unit. A U-Pb age of 359.2±6.4 Ma from the gabbro unit has been obtained by LA-ICP-MS. Olivine of the Sidingheishan intrusion reaches 82.52 mole% Fo and 1414 ppm Ni. On the basis of olivine-liquid equilibria, it has been calculated that the MgO and FeO included in the parental magma of a wehrlite sample were approximately10.43 wt% and 13.14 wt%, respectively. The Sidingheishan intrusive rocks are characterized by moderate enrichments in Th and Sm, slight enrichments in light REE, and depletions in Nb, Ta, Zr and Hf. The εNd(t) values in the rock units vary from +6.70 to +9.64, and initial87Sr/86Sr ratios range between 0.7035 and0.7042. Initial206Pb/204Pb,207Pb/204Pb and208Pb/204Pb values fall in the ranges of 17.23-17.91,15.45-15.54 and 37.54-38.09 respectively. These characteristics are collectively similar to the Heishan intrusion and the Early Carboniferous subduction related volcanic rocks in the Santanghu Basin, North Tianshan and Beishan area. The low(La/Gd)PMvalues between 0.26 and 1.77 indicate that the magma of the Sidingheishan intrusion was most likely derived from a depleted spinel-peridotite mantle.(Th/Nb)PMratios from 0.59 to 20.25 indicate contamination of the parental magma in the upper ***

关键词： break-off of subducted slab zircon U-Pb dating whole-rock Sr-Nd-Pb isotopes mafic-ultramafic intrusion southern margin of Central Asian Orogenic Belt China

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Improvement of wood properties by composite of diatomite and “phenol-melamine-formaldehyde” co-condensed resin

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Journal of Forestry Research 2013年第4期24卷 741-746页

作者： ZHANG Ming xu Yang WANG Shu-liang SHI jun-you LIU Chang-yu WANG Cheng-yu College of Materials Science and Engineering Northeast Forestry University China Nation Center for Quality Supervision and Test of Wood working Machinery Northeast Forestry University Wood Material Science and Engineering Key Laboratory of Jilin Province Beihua University

We improved the overall performance of fast-growing poplar by utilizing a low-cost, effective and simple method. The fast-growing poplar was modified by a vacuum-pressure impregnation method with three types of modification solutions composed of phe- nol-melamine-formaldehyde （PMF） co-condensed resin, diatomite, and 3-aminopropyl （diethoxy） methylsilane. We measured the weight percent gain （WPG）, bulking, leaching, anti-swelling efficiency （ASE）, wa- ter-repellent effectiveness （WRE）, and oxygen index of the modified specimens. All of the wood physical properties, which are beneficial for human uses, were significantly improved by the treatment. We improved various characteristics of wood and the oxygen index of poplar above 48.6% after the modification using diatomite and PMF co-condensed resin.

关键词： Keywords: wood modification phenol-melamine-formaldehydeco-condensed resin artificial fast-growing poplar diatomite

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Induced polarization in a 2.5D marine controlled source electromagnetic field based on the adaptive finite-element method

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Applied Geophysics 2018年第2期15卷 332-341,365页

作者： xu Kai-jun Sun Jie School of Geosciences China University of Petroleum (East China) Qingdao 266580 China

The induced polarization （IP） in rocks and minerals is of significance to the marine controlled-source electromagnetic （CSEM） field. We propose an adaptive finite-element algorithm for the 2.5D frequency-domain forward modeling of marine CSEM that considers the induced polarization. The geoelectrical model is discretized using an unstructured triangular elemental grid that accommodates the complex topography and geoelectrical structures. We use the Cole-Cole model to describe the IP and develop a complex resistivity forward modeling algorithm. We compare the simulation results with published 1D model results and subsequently calculate the electromagnetic field for variable azimuth sources, IP parameters, and topography. Finally, we analyze the IP effect on the marine CSEM field and show that IP of oil reservoirs and topography affects the marine CSEM electromagnetic field.

关键词： Controlled source electromagnetic field finite element induced polarizationeffect Cole-Cole model

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Optical monitoring of the Seyfert galaxy NGC 4151 and possible periodicities in its historical light curve

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Research in Astronomy and Astrophysics 2014年第8期14卷 923-932页

作者： Di-Fu Guo Shao-Ming Hu jun Tao Hong-Xing Yin xu Chen Hong-Jian Pan Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment Institute of Space SciencesSchool of Space Science and PhysicsShandong University Shanghai Astronomical Observatory Chinese Academy of Sciences

We report B, V and R band CCD photometry of the Seyfert galaxy NGC 4151 obtained with the 1.0m telescope at Weihai Observatory of Shandong University and the 1.56 m telescope at Shanghai Astronomical Observatory from 2005 December to 2013 February. Combining all available data from literature, we have constructed a historical light curve from 1910 to 2013 to study the periodicity of the source using three different methods （the Jurkevich method, the Lomb-Scargle periodogram method and the Discrete Correlation Function method）. We find possible periods of P1 = 4 ± 0.1,/92 = 7.5 ±0.3 and P3 = 15.9± 0.3 yr.

关键词： methods data analysis -- galaxies: active -- galaxies individual (NGC 4151)

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Biochemical properties of K_(11,48)-branched ubiquitin chains

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Chinese Chemical Letters 2018年第7期29卷 1155-1159页

作者： Lu-jun Liang Yanyan Si Shan Tang Dongliang Huang Zhipeng A.Wang Changlin Tian Ji-Shen zheng School of Life Sciences University of Science and Technology of China

As one of the most widely existing post-translational modification models, ubiquitination regulates diverse cellular activities. In eukaryotes, K-branched ubiquitin chains play key roles in cell cycle and protein quality control. However, the structural and biochemical properties of K-branched ubiquitin chains have not been well examined. Here we employed the synthetic linkage-and length-defined K-branched ubiquitin chains to examine their binding and hydrolysis properties in vitro. Quantitatively affinity determination of ubiquitin chains to the proteasome ubiquitin receptor S5 a indicated that the S5 a exhibited preference binding to K-branched chains over K-linked chains, but not K-conjugated chains. In addition, deubiquitination experiments were carried out and the results showed that K-branched chains were preferably hydrolyzed by proteasome-associated deubiquitinase Rpnll than homotypic Kor K-linked chains.

关键词： Post-translational modification Ubiquitination K_(11,48)-branched chains Affinity Deubiquitination Native chemical ligation of peptide hydrazine

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