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Modelling the Current and future Spatial Distribution Area of Shea Tree (<i>Vittelaria paradoxa</i>C. f. Gaertn) in the Context of Climate Change in Benin

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American Journal of Climate Change 2021年第3期10卷 263-281页

作者： Yasminath Judith follone Avaligbé faki Oyédékpo Chabi Césaire Paul Gnanglè Orou Daouda Bello Iboura.ma.Yabi Léonard Ahoton Aliou saïdou Integrated Soil and Crop management Research Unit Laboratory of Soil Sciences Crop Sciences School Faculty of Agronomic Sciences University of Abomey-Calavi Abomey-Calavi Benin Agricultural Research Centre (CRA) of Agonkanmey National Agricultural Research Institute of Benin (INRAB) Cotonou Benin Laboratory Pierre PAGNEY “Climate Water Ecosystem and Development (LACEEDE)” Department of Geography and Land Management (DAGT) Faculty of Human and Social Sciences (FASHS) University of Abomey-Calavi Abomey-Calavi Benin

In Benin, Shea tree (Vitellaria paradoxa) is one of the agroforestry species of great socio-economic importance for local populations. Given the actual variation in the climate parameters, it is necessary to anticipate the future spatial distribution of Shea trees as an adaptation strategy and for designing relevant conservation strategies. The aim of the present research was to evaluate the influence of climate change on the distribution areas of Shea trees in Benin. Occurrence data consisting of geographic coordinates of Shea trees in Benin as well as bioclimatic variables were recorded. furthemore, additional presence points were collected from the Global Biodiversity Information facility database website. Current and future environmental data for the study area were obtained from the Africlim website. Bioclimatic variables (moisture and temperature), monthly maximum and minimum temperatures and annual rainfall were collected from Worldclim synoptic stations website for the period 1970-2000. The aridity index was created from the potential evapotranspiration (PET) and annual rainfall, using spatial analysis tools of ArcGIS. The impact of current and future environmental conditions on favourable Shea trees’ growing area was assessed following the maximum entropy (maxEnt) approach under two climate scenarios (RCP 4.5 and RCP 8.5). Under the current climate conditions, 80% of Benin territory and 79% of the protected areas were highly favourable for Shea trees growing and conservation. However, all climate scenarios projected the significant decrease of 14% to 19% of the distribution of favourable for Shea tree growing area and 26% to 30% of the protected areas by 2055 in favour of non-favourable for the trees’ distribution. The protection of habitats favourable for the species development, coupled with a quick restoration of the species through the use of appropriate vegetative propagation techniques are required to sustain the species’ conservation in Benin and mai

关键词： Bioclimatic Variables Agroforestry Scenario Analysis Adaptation Strategy Conservation

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Hierarchical peony-like feCo-NC with conductive network and highly active sites as efficient electrocatalyst for rechargeable Zn-air battery

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Nano Research 2020年第4期13卷 1090-1099页

作者： Yiyan Wang Anuj Kumar mang ma Yin Jia Yu Wang Ying Zhang Guoxin Zhang Xiaoming Sun Zifeng Yan State Key Laboratory of Heavy Oil Processing China University of Petroleum(East China)Qingdao 266580China Department of Electrical Engineering and Automation Shandong University of Science and TechnologyQingdao 266590China Department of Chemistry Institute of Humanities and applied ScienceGLA UniversityMathura-281406India

Carbon materials featuring hierarchical pores and atomically dispersed metal sites are promising catalysts for energy storage and conversion ***,we developed a facile strategy to construct functional carbon materials with a fluffy peony-like structure and dense binary feCo-Nx active sites(termed as f-feCo-CNT).By regulating the metal content in precursors,a three-dimensional(3D)interconnected conductive carbon nanotubes network was in-situ formed throughout the atomically dispersed feCo-NC matrix during *** advantage of rich pore hierarchy and co-existence of highly active feCo-Nx sites and beneficial feCo alloy nanoparticles,the f-feCo-CNT material exhibited excellent bifunctional performance towards oxygen reduction reaction/oxygen evolution reactions(ORR/OER)with respect to the atomically dispersed feCo-NC(sa-f-feCo-NC)and commercial Pt/C+Ru02 mixture,surpassing the sa-f-feCo-NC with a 20 mV higher ORR half-wave potential and a 100 mV lower OER overpotential(at 10.0 ma/cm^2).Remarkably,the f-feCo-CNT-assembled Zn-air battery(ZAB)possessed a.ma.imum specific power of 195.8 mW/cm^2,excellent rate capability,and very good cycling stability at large current density of 20.0 ma/cm^*** work provides a facile and feasible synthetic strategy of constructing low-cost cathode materials with excellent comprehensive ZAB performance.

关键词： atom ically dispersed catalyst hierarchical structure carbon nanotube oxygen electrocatalyst rechargeable zinc-air battery

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Single and double Auger decay of 4f-ionized mercury including cascade and direct processes

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Chinese Physics B 2018年第6期27卷 244-250页

作者： Yu-Long ma fu-Yang Zhou Zhen-Qi Liu Yi-Zhi Qu College of material Sciences and Optoelectronic Technology University of Chinese Academy of Sciences Beijing 100049 China Data Center for High Energy Density Physics Institute of Applied Physics and Computational Mathematics Beijing 100088 China

Single（sa） and double（DA） Auger decay including cascade and direct processes are investigated for Hg 4 f^（-1） with multiconfiguration Dirac–fock method and two-step approaches, i.e., knockout and shakeoff mechanisms. Due to the computational effort, only the major transitions are considered to describe the sa and DA decays for the Hg＋ions with complex electronic configurations. In order to estimate the Auger transition energies and amplitudes, the reference configuration sets producing the configuration state functions are carefully chosen for balancing electron correlations among the successive singly, doubly and triply ionized mercury. The Auger rates and electron spectra, DA probabilities as well as the populations of the final Hg^（3＋）states are obtained. Our results well explain the recent experimental data about the 4 f hole states of Hg[Palaudoux J et al., Phys. Rev. A 91 012513（2015）], and could provide guidance for further studies on complex *** for the DA decay, the contributions of the direct processes, which are neglected in their calculations, are found to be important, accounting for as high as about 38% and 34% of the total DA decays for the 4 f（7/2）^（-1） and 4 f（5/2）^（-1）, respectively.

关键词： single Auger cascade double Auger direct double Auger Hg 4f^-1

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Overexpression of MdATG18a in apple improves resistance to Diplocarpon mali infection by enhancing antioxidant activity and salicylic acid levels

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Horticulture Research 2018年第1期5卷 149-158页

作者： Xun Sun Liuqing Huo Xin Jia Runmin Che Xiaoqing Gong Ping Wang fengwang ma State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple College of HorticultureNorthwest A&F University712100YanglingShaanxiChina

marssonina apple blotch,caused by Diplocarpon mali,is one of the most serious diseases of *** plays a key role in pathogen *** previously showed that MdATG18a has a positive influence on drought ***,we describe how overexpression(OE)of MdATG18a enhances resistance to *** infection,probably because less H2O2 but more salicylic acid(sa)is accumulated in the leaves of OE apple *** of chitinase,β-1,3-glucanase,and sa-related marker genes was induced more strongly by *** in OE *** levels of other important MdATG genes were also drastically increased by *** in OE plants,which indicated increased autophagy *** together,these results demonstrate that OE of MdATG18a enhances resistance to infection by *** and plays positive roles in H2O2-scavenging and sa *** findings provide important information for designing strategies which could induce autophagy to minimize the impact of this disease on apple production.

关键词： finding designing resistance

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MdVQ37 overexpression reduces basal thermotolerance in transgenic apple by affecting transcription factor activity and salicylic acid homeostasis

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Horticulture Research 2021年第1期8卷 2892-2907页

作者： Qinglong Dong Dingyue Duan Wenqian Zheng Dong Huang Qian Wang Xiaoran Li Ke mao fengwang ma State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple College of HorticultureNorthwest A&F University712100 YanglingShaanxiChina

High temperature(HT)is one of the most important environmental stress factors and seriously threatens plant growth,development,and *** motif-containing proteins are transcriptional regulators that have been reported to regulate plant growth and developmental processes,including responses to biotic and abiotic ***,the relationships between VQ motif-containing proteins and HT stress have not been studied in depth in *** this study,transgenic apple(malus domestica)plants overexpressing the apple VQ motif-containing protein-coding gene(MdVQ37)were exposed to HT stress,and the transgenic lines exhibited a heat-sensitive *** addition,physiological and biochemical studies revealed that,compared with WT plants,transgenic lines had lower enzymatic activity and photosynthetic capacity and lower amounts of nonenzymatic antioxidant system metabolites under HT *** analysis revealed 1379 genes whose expression differed between the transgenic lines and WT *** and KEGG pathway analyses showed that transcription factor activity and plant hormone signaling pathways were differentially influenced and enriched in the transgenic *** acid(sa)content analysis indicated that overexpression of MdVQ37 reduced the content of endogenous sa by regulating the expression of sa catabolism-related genes,which ultimately resulted in disruption of the sa-dependent signaling pathway under HT *** application of sa slightly increased the survival rate of the transgenic lines under HT *** together,our results indicate that apple MdVQ37 has a regulatory function in basal thermotolerance by modulating the activity of transcription factors and sa ***,this study provides novel insights that improve our understanding of the various functions of VQ motif-containing proteins.

关键词： homeostasis slightly expressing

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Characterization of a PDR type ABC transporter gene from wheat (Triticum aestivum L.)

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Chinese Science Bulletin 2009年第18期54卷 3249-3257页

作者： SHANG Yi XIAO Jin ma LuLin WANG HaiYan QI ZengJun CHEN PeiDu LIU DaJun WANG XiuE State Key Laboratory of Crop Genetics and Germplasm Enhancement Cytogenetics Institute Nanjing Agricultural UniversityNanjing 210095 China Institute of Crop Research and Nuclear Technique Utilization Zhejiang Academy of Agricultural Science Hangzhou 310021 China

DON, as a virulence factor, plays an important role in the infection of fusarium graminearum in wheat. The infection ability of f. graminearum depends on its capacity of producing DON. The production of DON by f. graminearum is significantly decreased in the wheat varieties with scab resistance. In this study, GeneChip analysis indicated that an EST encoding an ATP-binding cassette (ABC) transporter was up-regulated by 45 times in a wheat landrace Wangshuibai, which is resistant to DON accumulation. A pair of EST-derived primers were designed based on the EST sequence, and a clone was then isolated from a wheat genomic DNA TAC library. The TAC clone was sequenced using chromosome walking and gene prediction was conducted using Softberry. A cDNA clone of this gene was subsequently isolated from Wangshuibai induced by DON using gene-specific primers designed according to the untranslated sequence of the gene. The genome size of the gene is 7377 bp, consisting of 19 exons with coding sequences of 4308 bp. It encodes a protein with 1435 amino acid residues and the calculated molecular weight is about 161 kD. BLAST analysis indicated that the gene may belong to pleiotropic drug resistance (PDR) sub-family, and hence designated as TaPDR1 (Triticum aestivum pleiotropic drug resistance). TaPDR1 was located on chromosome 5A of wheat using nullisomic-tetrasomic lines of Chinese Spring. TaPDR1 was up-regulated by induction of both DON and f. graminearum. Expression patterns of TaPDR1 were different in wild-type Wangshuibai and the fast-neutron induced Wangshuibai mutant lacking fHB1, a.ma.or QTL of fHB resistance and DON resistance in chromosome arm 3BS. These results suggested that TaPDR1 might be a candidate gene responsible for DON ac-cumulation resistance. The expression profile showed that TaPDR1 expression was neither induced by hormones typically involved in biotic stress, such as JA and sa, nor by abiotic stresses, such as heat, cold, wounding and NaCl. However, TaPDR1

关键词：小麦多样性 PDR ABC

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Development of photoreactive demineralized bone matrix 3D printing colloidal inks for bone tissue engineering

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Regenerative Biomaterials 2023年第1期10卷 1604-1617页

作者： Katie J.Hogan Hayriye Oztatlı marissa R.Perez Sophia Si Reyhan Umurhan Elysa Jui Ziwen Wang Emily Y.Jiang sa R.Han mani Diba K.Jane Grande-Allen Bora Garipcan Antonios G.Mikos Department of Bioengineering Rice UniversityMS-1426500 Main StreetHoustonTX 77030USA Baylor College of Medicine Medical Scientist Training Program HoustonTX 77030USA Institute of Biomedical Engineering Bo�gazic¸i University_Istanbul34684Turkey

Demineralized bone matrix(DBM)has been widely used clinically for dental,craniofacial and skeletal bone repair,as an osteoinductive and osteoconductive material.3D printing(3DP)enables the creation of bone tissue engineering scaffolds with complex geometries and *** methacryloylated gelatin nanoparticles(GNP-mas)3DP inks have been developed,which display gel-like behavior for high print fidelity and are capable of post-printing photocrosslinking for control of scaffold swelling and ***,novel DBM nanoparticles(DBM-NPs,∼400 nm)were fabricated and characterized prior to incorporation in 3DP *** objectives of this study were to determine how these DBM-NPs would influence the printability of composite colloidal 3DP inks,assess the impact of ultraviolet(UV)crosslinking on 3DP scaffold swelling and degradation and evaluate the osteogenic potential of DBM-NP-containing composite colloidal *** addition of methacryloylated DBM-NPs(DBM-NP-mas)to composite colloidal inks(100:0,95:5 and 75:25 GNP-ma:DBM-NP-ma)did not significantly impact the rheological properties associated with printability,such as viscosity and shear recovery or *** crosslinking with a UV dosage of 3 J/cm2 directly impacted the rate of 3DP scaffold swelling for all GNP-ma:DBM-NP-ma ratios with an∼40%greater increase in scaffold area and pore area in uncrosslinked versus photocrosslinked scaffolds over 21 days in phosphate-buffered saline(PBS).Likewise,degradation(hydrolytic and enzymatic)over 21 days for all DBM-NP-ma content groups was significantly decreased,∼45%less in PBS and collagenase-containing PBS,in UV-crosslinked versus uncrosslinked *** incorporation of DBM-NP-mas into scaffolds decreased mass loss compared to GNP-ma-only scaffolds during collagenase *** in vitro osteogenic study with bone marrow-derived mesenchymal stem cells demonstrated osteoconductive properties of 3DP scaffolds for the DBM-NP-ma contents examine

关键词： demineralized bone matrix colloidal hydrogels 3D printing bone tissue engineering

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粉煤灰负载铈吸附剂的制备研究

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稀土 2009年第6期30卷 83-86页

作者：杨磊赵文岩马静静萨仁其其格内蒙古大学化学化工学院内蒙古呼和浩特010021

研制了一种新颖的铈负载粉煤灰吸附剂。研究了在各种制备条件下制得的吸附剂对氟离子的去除效果。实验结果表明,在pH为8-10,接触时间为16h,焙烧温度为400℃,铈离子浓度为0.2g/L,改性酸浓度为6mol/L时制得的稀土粉煤灰吸附剂,在处理氟离... 详细信息

研制了一种新颖的铈负载粉煤灰吸附剂。研究了在各种制备条件下制得的吸附剂对氟离子的去除效果。实验结果表明,在pH为8-10,接触时间为16h,焙烧温度为400℃,铈离子浓度为0.2g/L,改性酸浓度为6mol/L时制得的稀土粉煤灰吸附剂,在处理氟离子水溶液时,该吸附剂除氟能力达到了90%以上。并且对比了原状粉煤灰、酸改性粉煤灰和稀土粉煤灰去除氟离子的吸附效率和最佳pH值。

关键词：稀土粉煤灰除氟吸附

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EDS1-Mediated Basal Defense and sa-Signaling Contribute to Post Post-Invasion Resistance against Tobacco Powdery Mildew in Arabidopsis

EDS1-Mediated Basal Defense and SA-Signaling Contribute to P...

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中国植物病理学会2015年学术年会

作者： ZHANG LL ma Xf ZHOU BB ZHAO JQ fan J HUANG f LI Y Wang WM Rice Research Institute Sichuan Agricultural University

Arabidopsh-powdery mildew is a unique pathosystem in dissecting the molecular mechanism of biotrophic fungus-plant *** increase the diversity of powdery mildew pathogens,we identified a tobacco powdery mildew,designated Gc SICAUl,that belonged to Golovinomyces cichoracearum（Gc） based on the internal transcribed spacer（ITS） rDNA fragment *** test in laboratory conditions revealed that Gc SICAUl was able to colonize on wild type Arabidopsis Co1-0 leaves,but failed to grow as abundantly as on tobacco leaves,indicating that Gc SICAUl has overcome the pre- and post-invasion resistance and its colonization is hindered by post postinvasion resistance in *** growth of Gc SICAU1 in the fls2,efr-1 and penl-1 mutants displayed no obvious difference from that of in wild type *** contrast,salicylic acid（sa）-signaling deficient mutants such as pad4-1,npr1-1,and eds5-1,but not Ethylene-signaling mutants,exhibited increased susceptibility to Gc ***,eds1-2 and pad4-1/sid2-1 double mutant were fully susceptible to Gc SICAU1 and the disease symptom was comparable to Gc SICAU1 on tobacco *** data indicate that EDS1-mediated basal defense and sa-signaling play critical roles for post post-invasion resistance against this *** together,our data demonstrated that Gc SICAU1 is a pathogen weakly virulent to Arabidopsis and can be used as a tool to finely dissect post-invasion resistance mechanisms.

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基于器械的高血压试验的优先终点:win ratio法

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中华高血压杂志(中英文) 2021年第8期29卷 799-799页

作者： Kandzari DE Hickey GL Pocock SJ Weber ma B■hm M Cohen sa fahy M Lamberti G mahfoud f 周卫练桂丽

具有不同临床相关性的多个终点可用于确定基于器械治疗的疗效。考虑到高血压试验中血压测量和药物变化之间的差异,研究者在一项假手术对照随机试验中,对未控制高血压患者(尽管服用了常用的抗高血压药物)的经皮经导管去肾交感神经术(rena... 详细信息

具有不同临床相关性的多个终点可用于确定基于器械治疗的疗效。考虑到高血压试验中血压测量和药物变化之间的差异,研究者在一项假手术对照随机试验中,对未控制高血压患者(尽管服用了常用的抗高血压药物)的经皮经导管去肾交感神经术(renal denervation,RDN)结果进行win ratio法分析。研究者提出一种新的优先终点框架,来确定RDN与假手术对照组相比的治疗效果。方法和结果:研究者使用由24h平均动态收缩压、

关键词：高血压收缩压 win ratio

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