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Discovery of androecium color polymorphism in Epimedium pubescens with habitat preference of anther/pollen color in the genus

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Journal of Plant Ecology 2018年第4期11卷 533-541页

作者： Xiao-Yue wang Qiu-mei Quan Bo wang Yun-xiang Li Shuang-Quan Huang State Key Lab of Hybrid Rice College of Life SciencesWuhan UniversityNo.299 Bayi RoadWuchang DistrictWuhan 430072China College of Environmental Science and Engineering China West Normal UniversityNanchong 637002China Institute of Evolution and Ecology School of Life SciencesCentral China Normal University152 Luoyu AvenueHongshan DistrictWuhan 430079China

Aims Interspecific and intraspecific variation in flower color in natural populations provides an opportunity for us to understand the evolu-tion and maintenance of diversity of floral *** to cor-olla color,little is known about the color polymorphism of sexual organs in flowering *** explore evolutionary transitions of androecium color and polymorphism within species,interspecific and intraspecific variation in androecium(anther and pollen)color in the genus Epimedium(Berberidaceae)was *** to explore the geographical patterns of anther/pollen color variation in Epimedium species,data of 45 species were collected and their phyl-ogeny was constructed based on available DNA *** investi-gate whether intraspecific variation in androecium color relates to habitat preference,three environmental factors were measured in the field popu-lation of Epimedium pubescens in northeastern Sichuan,China,which plants had green or yellow *** and reproductive traits of this species were compared between the two color *** Findings Androecium(anther and pollen)color polymorphism in field populations of Epimedium pubescens is reported here where nine populations are monomorphic with a green androecium but three populations are dimorphic with individuals having either a green or a yellow *** stalk height,stalk diameter,leaf number,flower number and spur length(as well as spur and nectar volume)were not significantly different between two *** to the yellow morph,the green morph had relatively larger leaves and anthers,but smaller *** green morph produced more pollen and larger seeds,but the same number of *** set was not significantly different between green and yellow *** of environmental factors in the color dimorphic popu-lations of *** indicated that the green morph was more likely to occur in habitats with relatively lower light ***

关键词： Epimedium floral traits habitat preference pollen color polymorphism green pollen yellow pollen macroevolutionary trend

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Crystalline,Rheological and Mechanical Enhancement in PBAT/PPC/Silica Nanocomposites with Double Percolation Network

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Chinese Journal of Polymer Science 2022年第11期40卷 1482-1492页

作者： You-mei Ma Feng-xiang Gao Shu-Ling Zhang College of Chemistry Jilin UniversityChangchun130012China Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China

Nanocomposites of blends of biodegradable poly(butylene adipate-co-terephthalate)(PBAT)and sustainable poly(propylene carbonate)(PPC)with nanosilica were prepared by melt compounding ***/PPC blend was partially miscible system with sea-island structure,and nanosilica particles were selectively dispersed in the continuous phase PBAT matrix to form the double percolation *** introduction of nanosilica into PBAT/PPC blend reduced the size of dispersed PPC phase,promoted the crystallization of PBAT in the nanocomposites,and increased the storage modulus of the *** study of rheological behaviors indicated that the double percolation network was formed at the nanosilica loading of 5 wt%,as a result,the nanocomposites exhibited the solid-like viscoelastic behavior and their relaxation time was *** the increase of the nanosilica content,the PBAT/PPC/silica nanocomposites displayed increased Young's modulus and yield strength.

关键词： Nanocomposites Selective dispersion Double percolation Enhanced properties

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Reinforcement of High Impact Polystyrene by Aramid Nanoparticle Fillers Prepared via an In situ Bottom-up Approach

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Chinese Journal of Polymer Science 2024年第8期42卷 1167-1176页

作者： xiang-Jun Gong Zhi-Ping Zhao Chang-mei Sun Ying Zhang Rong-Jun Qu Ying wang School of Chemistry and Materials Science Ludong UniversityYantai 264025China

In this work,aramid nanoparticles(ANPs)were prepared in dimethyl formamide(DMF)solution containing high impact polystyrene(HIPS)via a bottom-up *** electron microscopy(TEM)images showed that the obtained ANPs were evenly distributed in the HIPS matrix without any *** composition of the ANPs,i.e.,poly(p-phenyl-p-phenylenediamine)(PPTA),was confirmed by Fourier transform infrared spectroscopy(FTIR),X-ray photoelectron spectroscopy(XPS)and X-ray diffractometer(XRD).The ANP/HIPS composites,obtained after ethanol precipitation,were added to neat HIPS as fillers to fabricate ANP/HIPS composite *** surface roughness and the glass transition temperature(T_g)of the sheets were characterized by atomic force microscope(AFM)and differential scanning calorimetry(DSC),*** with neat HIPS,the mechanical properties of the composite sheet were significantly improved,and the Young's modulus increased from 246.55 MPa to 2025.12 MPa,the tensile strength increased from 3.07 MPa to 29.76 MPa,and the toughness increased from 0.32 N/mm^2 to 3.92 N/mm^2,with an increase rate of 721%,869%and 1125%,***,the thermal stability of the composites improved with the increase in ANP content.

关键词： High impact polystyrene PPTA nanoparticle Reinforce Mechanical property

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Co/Zn-metal organic frameworks derived functional matrix for highly active amorphous Se stabilization and advanced lithium storage

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Rare Metals 2023年第1期42卷 76-84页

作者： Hong Yu Jin-Zhao Kang Long-Sheng Huang Jin-Jin wang Xiao-mei wang xiang-Yuan Zhao Cheng-Feng Du State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal MaterialsNorthwestern Polytechnical UniversityXi’an710072China Northwestern Polytechnical University Chongqing Technology Innovation Center Chongqing400000China College of Chemistry and Chemical Engineering Hubei UniversityWuhan430062China

Lithium-selenium batteries,as an advanced rechargeable battery system,have attracted wide ***,its application is hurdled by the ambiguous underlying mechanism such as the unclear active phase and the key role of the host ***,a three-dimensional(3D) functional matrix derived from the Co/Znmetal organic framework is synthesized to unravel the questions *** reveals that the strong interaction and voids in the 3D matrix serve to anchor the amorphous Se with high electrochemical *** obtained 3DC/Se exhibits 544.2 and 273.2 mAh·g^(-1) t current densities of 0.1C and 2.0C,respectively,with a diffusion-controlled *** excessive amount of Se beyond the loading capacity of the matrix leads to the formation of trigonal phase Se,which shows an unsatisfying electrochemical property.

关键词： Metal-organic frameworks(MOFs) Amorphous Se Functional matrix Li-Se batteries

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Integrating high-entropy alloy oxides with porous wood architectures for boosted salt-resistant water evaporation

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Rare Metals 2023年第12期42卷 3960-3968页

作者： De-Qi Fan Ye-mei Liao xiang wang Yi Lu Yan Mi Xiao-Fei Yang Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsCollege of Chemical EngineeringNanjing Forestry UniversityNanjing 210037China College of Science Nanjing Forestry UniversityNanjing 210037China Key Laboratory of Chemistry and Engineering of Forest Products State Ethnic Affairs CommissionGuangxi Key Laboratory of Chemistry and Engineering of Forest ProductsGuangxi Minzu UniversityNanning 530006China

Solar-driven interfacial desalination technology has recently emerged as a promising way to realize seawater desalination with high energy conversion ***,salt accumulation on solar absorber surface significantly retards desalination rate,especially for highsalinity ***,a vertical Janus-interface saltresistant solar evaporator is constructed for simultaneous efficient solar absorption and stable high-salinity desalination based on the assembly of hydrophilic delignification wood(DW),high-entropy alloy oxides(HEAO),and hydrophobic polydimethylsiloxane(PDMS).

关键词： alloy entropy oxides

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Protein Quality Control in Plant Organelles:Current Progress and Future Perspectives

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Molecular Plant 2021年第1期14卷 95-114页

作者： Jing-Liang Sun Jin-Yu Li mei-Jing wang Ze-Ting Song Jian-xiang Liu State Key Laboratory of Plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310027China

The endoplasmic reticulum,chloroplasts,and mitochondria are major plant organelles for protein synthesis,photosynthesis,metabolism,and energy *** homeostasis in these organelles,maintained by a balance between protein synthesis and degradation,is essential for cell functions during plant growth,development,and stress ***-encoded chloroplast-and mitochondrion-targeted proteins and ER-resident proteins are imported from the cytosol and undergo modification and maturation within their respective *** folding is an error-prone process that is influenced by both developmental signals and environmental cues;a number of mechanisms have evolved to ensure efficient import and proper folding and maturation of proteins in plant *** or damaged proteins with nonnative conformations are subject to degradation via complementary or competing pathways:intraorganelle proteases,the organelle-associated ubiquitin-proteasome system,and the selective autophagy of partial or entire *** proteins in nonnative conformations accumulate,the organellespecific unfolded protein response operates to restore protein homeostasis by reducing protein folding demand,increasing protein folding capacity,and enhancing components involved in proteasome-associated protein degradation and *** review summarizes recent progress on the understanding of protein quality control in the ER,chloroplasts,and mitochondria in plants,with a focus on common mechanisms shared by these organelles during protein homeostasis.

关键词： autophagy chloroplast-associated protein degradation ER-associated protein degradation mitochondria-associated protein degradation protein quality control unfolded protein response

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Effect of Precipitated Phases on Corrosion of Mg95.8Gd3Zn1Zr0.2 Alloy with Long-Period Stacking Ordered Structure

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Acta Metallurgica Sinica(English Letters) 2016年第1期29卷 32-38页

作者： Xi-mei zong Dan wang Wei Liu Kai-Bo Nie Chun-xiang Xu Jin-Shan Zhang College of Materials Science and Engineering Taiyuan University of Technology Taiyuan 030024 China Shanxi Key Laboratory of Advanced Magnesium-Based Materials Taiyuan 030024 China Department of Chemistry Taiyuan Normal UniversityTaiyuan 030031 China

The microstructure of the precipitated phases of ***3Zn1Zro.2 alloys with long-period stacking ordered structure before and after heat treatment is discussed. The corrosion properties of the as-cast （F）, solid-solution （T4） and aging-treated （T6） alloys in 1% NaC1 solution are studied. The hydrogen evolution and electrochemical measurements display that the as-cast ***3Zn1Zro.2 alloy with the continuous network eutectic phase exhibits the greatest corrosion resistance, while T6 sample with some needle-like phases and the particle phases is the worst among the three alloys. It is proposed to be mainly related to the amount, composition, microstructure and distribution of the precipitated phases.

关键词： Mg-Gd-Zn Corrosion properties Long-period stacking ordered (LPSO) Microstructure

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Effects of alloy elements on ductility and thermal conductivity of compacted graphite iron

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China Foundry 2018年第3期15卷 189-195页

作者： Dong-mei Xu Gui-quan wang xiang Chen Yan-xiang Li Yuan Liu Hua-wei Zhang School of Materials Science and Engineering Tsinghua University Beijing 100084 China Key Laboratory for Advanced Materials Processing Technology (MOE) Tsinghua University Beijing 100084 China

The infl uence of Si, Sn, Mo and Ni on the ductility and thermal conductivity of compacted graphite iron(CGI) was investigated. Metallographic observation and Differential Scanning Calorimetry(DSC) experiments were carried out to analyze the roles of various additions in the eutectoid reaction. The experimental results showed that the ductility of CGI is proportional to the ferrite fraction, so moderate Si content could dramatically improve the ductility by increasing the ferrite fraction. DSC measurements showed that Mo has moderate inhibition on eutectoid transformation during both the heating and cooling processes, while the sample without Sn obviously broadens the three-phase region. Vermicularity and ferrite are known to improve thermal conductivity, and the former plays a more important role. Besides, among the alloy elements investigated, Sn has the greatest negative effect on conductivity, followed by Ni and Mo having the smallest effects.

关键词： compacted graphite iron ductility thermal conductivity

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Effect of climate change on seasonal water use efficiency in subalpine Abies fabri

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Journal of Mountain Science 2017年第1期14卷 142-157页

作者： SUN xiang-yang wang Gen-xu HUANG mei HU Zhao-yong SONG Chun-lin Institute of Mountain Hazards and Environment Chinese Academy of Sciences Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences

Abies fabri is a typical subalpine dark coniferous forest in southwestern China. Air temperature increases more at high elevation areas than that at low elevation areas in mountainous regions,and climate change ratio is also uneven in different seasons. Carbon gain and the response of water use efficiency(WUE) to annual and seasonal increases in temperature with or without CO_2 fertilization were simulated in Abies fabri using the atmospheric-vegetation interaction model(AVIM2). Four future climate scenarios(RCP2.6,RCP4.5,RCP6.0 and RCP8.5) from the Coupled Model Intercomparison Project Phase 5(CMIP5) were selectively investigated. The results showed that warmer temperatures have negative effects on gross primary production(GPP) and net primary production(NPP) in growing seasons and positive effects in dormant seasons due to the variation in the leaf area index. Warmer temperatures tend to generate lower canopy WUE and higher ecosystem WUE in Abies fabri. However,warmer temperature together with rising CO_2 concentrations significantlyincrease the GPP and NPP in both growing and dormant seasons and enhance WUE in annual and dormant seasons because of the higher leaf area index(LAI) and soil temperature. The comparison of the simulated results with and without CO_2 fertilization shows that CO_2 has the potential to partially alleviate the adverse effects of climate warming on carbon gain and WUE in subalpine coniferous forests.

关键词： Climate change Carbon gain Water use efficiency Atmospheric-vegetation interaction model

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Hepatitis Virus-associated Non-hodgkin Lymphoma: Pathogenesis and Treatment Strategies

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Journal of Clinical and Translational Hepatology 2023年第5期11卷 1256-1266页

作者： Wenjing Zhang Fan Du Li wang Tao Bai xiang Zhou Heng mei Department of Hematology The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina Department of Gastroenterology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina Department of Internal Medicine II Würzburg University HospitalUniversity of WürzburgWürzburgGermany Department of Hematology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina

Over the last decade,epidemiological studies have discovered a link between hepatitis C virus(HCV)and hepatitis B virus(HBV)infection and non-Hodgkin lymphoma(NHL).The regression of HCV-associated NHL after HCV eradication is the most compelling proof supporting HCV infection’s role in lymphoproliferative *** infection was found to significantly enhance the incidence of NHL,according to the epidemiological *** exact mechanism of HCV leading to NHL has not been fully clarified,and there are mainly the following possible mechanisms:(1)Indirect mechanisms:stimulation of B lymphocytes by extracellular HCV and cytokines;(2)Direct mechanisms:oncogenic effects mediated by intracellular HCV proteins;(3)hit-and-run mechanism:permanent genetic B lymphocytes damage by the transitional entry of *** specific role of HBV in the occurrence of NHL is still unclear,and the research on its mechanism is less extensively explored than HCV,and there are mainly the following possible mechanisms:(1)Indirect mechanisms:stimulation of B lymphocytes by extracellular HBV;(2)Direct mechanisms:oncogenic effects mediated by intracellular HBV *** fact,it is reasonable to consider direct-acting antivirals(DAAs)as first-line therapy for indolent HCV-associated BNHL patients who do not require immediate *** for NHL is affected by HBV infection and *** the same time,chemotherapy can also activate HBV *** recent guidelines,all patients with􀀫HBsAg positive/HBV DNA≥2,000IU/mL should be treated for *** data on epidemiology,interventional studies,and molecular mechanisms of HCV and HBV-associated B-NHL are systematically summarized in this review.

关键词： Hepatitis C virus Hepatitis B virus Non-hodgkin lymphoma B cell

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