检索结果-南通市图书馆

Expression pattern analysis of odorant-binding proteins in the pea aphid Acyrthosiphon pisum

在线全文

学校读者我要写书评

暂无评论

Insect Science 2015年第2期22卷 220-234页

作者： Filomena De Biasio Lea Riviello Daniele Bruno Annalisa Grimaldi Terenzio Congiu Yu Feng Sun Patrizia Falabella Dipartimento di Scienze Universit& della Basilicata via dell' Ateneo Lucano 10 85100 Potenza Dipartimento di Biotecnologie e Scienze della Vita Universita dell'lnsubria via J. H. Dunant 3 21100 Dipartimento di Scienze Chirurgiche e Morfologiche Universita dell'Insubriavia Monte Generoso 321100Varese Italy Chinese Academy of Agricultural Sciences institute of Plant Protection Beijing China

Odorant-binding proteins （OBPs） are soluble proteins mediating chemorecep- tion in insects. In previous research, we investigated the molecular mechanisms adopted by aphids to detect the alarm pheromone （E）-fl-farnesene and we found that the recogni- tion of this and structurally related molecules is mediated by OBP3 and OBP7. Here, we show the differential expression patterns of 5 selected OBPs （OBP 1, OBP3, OBP6, OBPT, OBPS） obtained performing quantitative RT-PCR and immunolocalization experiments in different body parts of adults and in the 5 developmental instars, including winged and unwinged morphs, of the pea aphid Acyrthosiphon pisum. The results provide an overall picture that allows us to speculate on the relationship between the differential expression of OBPs and their putative function. The expression of OBP3, OBP6, and OBP7 in the antennal sensilla suggests a ehemosensory fimction for these proteins, whereas the con- stant expression level of OBP8 in all instars could suggest a conserved role. Moreover, OBP1 and OBP3 are also expressed in nonsensory organs. A light and scanning electron microscopy study of sensilla on different body parts of aphid, in particular antennae, legs, mouthparts, and coruicles-cauda, completes this research providing a guide to facilitate the mapping of OBP expression profiles.

关键词： aphids chemosensilla immunohistochemistry microscopy odorant-binding protein (OBP)

Directional seismic response to the complex topography:A case study of 2013 Lushan Ms 7.0 earthquake

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Mountain Science 2020年第9期17卷 2049-2067页

作者： ZHAO Bo WANG Yun-sheng SU Li-jun LUO Yong-hong ZHANG Jing Key Laboratory of Mountain Hazards and Earth Surface Processes Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China State Key Laboratory of Geohazard Prevention and Geoenvironment protection Chengdu University of TechnologyChengdu 610059China CAS Center for Excellence in Tibetan Plateau Earth Sciences Beijing 100101China China-Pakistan Joint Research Center on Earth Sciences Islamabad 30001Pakistan University of Chinese Academy of Sciences Beijing 100049China

Azimuthal variations in site response can provide a good insight into the site amplification and seismic conditions of geohazard *** this study,multiple directional site response methods,including D-Arias(Directional-Arias),D-SER(Directional-Shaking energy ratio),D-HVSR(Directional-Horizontal to vertical spectral ratio)and D-SSR(Directional–Standard spectral ratio),are adopted to analyse seismic data of the 2013 Lushan Ms 7.0 earthquake captured by the self-established Lengzhuguan(LZG)station which consists of the complex topography of isolated ridge,large mountain and some typical *** results show that the isolated ridge could cause stronger site responses than the large mountain,and whose pronounced response direction is roughly perpendicular to its *** the growth of elevation,the siteresonant frequency *** different microreliefs on the mountain cause different site responses,which present as protruding slope>linear *** site response mainly exists on the surficial layer of the mountain and shows that with the increase of the distance to mountain surface,the site response gets weaker,the site resonant frequency gets higher,and the pronounced response direction is perpendicular to its ridgeline.

关键词： Site response Pronounced response direction LZG station Lushan Ms 7.0 earthquake

Community characteristics of macrobenthos community in Changli Gold Coast National Nature Reserve of Hebei in China

在线全文

学校读者我要写书评

暂无评论

marine Science Bulletin 2017年第2期19卷 38-50页

作者： KOU Cun-hui ZHANG Qing-tian YU Hang LI De-liang ZHAO Xing-gui ZHANG Peng-ru-yan LIU Xian-bin Tianjin marine Environmental protection and Restoration Technology Engineering Center Tianjin Key Laboratory of Marine Resources and Chemistry Tianjin University of Science & Technology Tianjin 300457 China Tianjin Research institute for Water Transport Engineering. M.O.T Tianjin 300459 China

Macrobenthic communities in the surrounding waters of Changli were investigated during spring and summer *** in species quantity,abundance and biomass,the dominant species and species diversity index of macrobenthos were *** results showed that58macrobenthos species were identified in spring,and92macrobenthos species were identified in *** composition of dominant species seasonally varied;however,most of them were species belonging to *** abundance of macrobenthos in summer was slightly higher than that in spring,while the biomass in summer was significantly smaller than that in ***-Curtis cluster analysis and multi-dimentional scaling(MDS)analysis indicated that macrobenthic communities were divided into three communities in spring,and two in *** abundance-biomass comparison(ABC)curve method was used to monitor the disturbance of environmental pollution for macrobenthic *** results showed that the macrobenthos in this area received serious disturbance from environmental pollution.

关键词： Changli macrobenthos diversity cluster analysis ABC curve method

Study on the Characteristics and Efficient Cultivation Techniques of "Rice-Rice-Potato" Triple Cropping Rotation Pattern

在线全文

学校读者我要写书评

暂无评论

Plant Diseases and Pests 2020年第4期11卷 28-30,35页

作者： Huang Xianliang Jiang Xianya Chen Maotuo Huang Riliang Tan Zhi Wu Shangxin Lu Xixu Yang Jianyuan Yangjiang institute of Agricultural Sciences Yangjiang 529500China Agricultural Technology Extension Station of Hongfeng Town Yangdong DistrictYangjiang 529500China Plant protection institute of Guangdong Academy of Agricultural Sciences Guangzhou 510640China

The efficient cultivation technique of "rice-rice-potato" triple cropping rotation pattern is summarized by analyzing its characteristics and cultivation techniques in Yangjiang region of Guangdong Province,China,and machine-transplanted cultivation technique of double cropping rice and cultivation techniques of winter potato black film mulching are emphatically introduced,in order to promote the development of potato industry in Yangjiang *** results will provide a scientific basis for the popularization and application of the "rice-rice-potato" triple cropping rotation pattern.

关键词： Rice Potato Triple cropping pattern Rotation Cultivation technique

Valence state effect of Cu on photocatalytic CO_(2)reduction

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Materials Reports(Energy) 2023年第4期3卷 39-45页

作者： Fangxu Dai Mingming Zhang Zhenjiang Li Jun Xing Lei Wang School of Pharmacy Jining Medical UniversityRizhao276800PR China Key Laboratory of Eco-chemical Engineering Ministry of EducationCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao266042PR China College of Sino-German Science and Technology Qingdao University of Science&TechnologyQingdao266042PR China College of Materials Science and Engineering Qingdao University of Science and TechnologyQingdao266042PR China College of Environment and Safety Engineering Qingdao University of Science and TechnologyShandong Engineering Research Center for Marine Environment Corrosion and Safety ProtectionQingdao266042PR China

Copper(Cu)is extensively employed in photocatalytic CO_(2)reduction reactions for the production of high-value *** valence state of transition metals plays a pivotal role in influencing the catalytic ***,due to the complex valence state changes of Cu in the CO_(2)reduction reaction,research on its valence state effect is *** current work is to prepare a series of TiO_(2)/CuX with stable Cu valence composition using different copper halides(CuX and CuX_(2),X=Br or Cl)as *** results show that the CuBr_(2)loading leads to Cu^(+)/Cu^(2+) mixed cocatalyst and exhibits the highest activity for CO_(2)*** CH4 evolution rate of the TiO_(2)/CuBr_(2)catalyst is as high as 100.59μmol h^(-1)g^(-1),which is 6.6 times that of pristine TiO_(2).The CH4 selectivity reaches 77%.The enhanced catalytic activity and selectivity can be ascribed to the efficient surface adsorption,activation,excellent carrier separation,and transfer ofCu^(+)/Cu^(2+) mixed *** findings provide a reference for designing highly active Cu-based photocatalysts.

关键词： Valence state Cu Photocatalytic CO_(2)reduction

Pepper mild mottle virus coat protein interacts with pepper chloroplast outer envelope membrane protein OMP24 to inhibit antiviral immunity in plants

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Horticulture Research 2023年第5期10卷 16-28页

作者： Kelei Han Hongying Zheng Dankan Yan Huijie Zhou Zhaoxing Jia Yushan Zhai Jian Wu Yuwen Lu Guanwei Wu Shaofei Rao Jianping Chen Jiejun Peng Rende Qi Fei Yan State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Institute of Plant VirologyNingbo UniversityNingbo315211China institute of Plant protection and Agro-Products Safety Anhui Academy of Agricultural SciencesHefeiAnhui 230031China

Pepper mild mottle virus(PMMoV)is a devastating viral pathogen of pepper(Capsicum annuum)but it is unclear whether and how peppers protect against PMMoV *** expression of the chloroplast outer membrane protein 24(OMP24)of *** was upregulated under PMMoV infection and it interacted with PMMoV coat protein(CP).Silencing of OMP24 in either *** or Nicotiana benthamiana facilitated PMMoV infection,whereas overexpression of *** OMP24 in transgenic plants inhibited PMMoV *** *** OMP24(CaOMP24)and *** OMP24(NbOMP24)localized to the chloroplast and have a moderately hydrophobic transmembrane domain that is necessary for their *** of CaOMP24 induced stromules,perinuclear chloroplast clustering,and accumulation of reactive oxygen species(ROS),the typical defense responses of chloroplasts transferring the retrograde signaling to the nucleus to regulate resistance *** expression of PR1 and PR2 was also upregulated significantly in plants overexpressing ***-interaction of OMP24 was demonstrated and was required for OMP24-mediated plant *** with PMMoV CP interfered with the self-interaction of OMP24 and impaired OMP24-induced stromules,perinuclear chloroplast clustering and ROS *** results demonstrate the defense function of OMP24 in pepper during viral infection and suggest a possible mechanism by which PMMoV CP modulates the plant defense to facilitate viral infection.

关键词： outer immunity envelope

Understand the local and regional contributions on air pollution from the view of human health impacts

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Environmental Science & Engineering 2021年第5期15卷 133-143页

作者： Yueqi Jiang Jia Xing Shuxiao Wang Xing Chang Shuchang Liu Aijun Shi Baoxian Liu Shovan Kumar Sahu State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing100084China State Environmental protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing100084China Beijing Municipal Research institute of Environment protection Beijing100037China Beijing Key Laboratory of Airborne Particulate Matter Monitoring Technology Beijing Municipal Environmental Monitoring CenterBeijing100048China

The source-receptor matrix of PM_(2.5)concentration from local and regional sources in the Beijing-Tianjin-Hebei(BTH)and surrounding provinces has been created in previous ***,because the spatial distribution of concentration does not necessarily match with that of the population,such concentration-based source-receptor matrix may not fully reflect the importance of pollutant control effectiveness in reducing the PM_(2.5)-related health *** demonstrate that,we study the source-receptor matrix of the PM_(2.5)-related deaths instead,with inclusion of the spatial correlations between the concentrations and the *** advanced source apportionment numerical model combined with the integrated exposure-response functions is used for BTH and surrounding regions in *** observed that the relative contribution to PM_(2.5)-related deaths of local emissions was 0.75%to 20.77%larger than that of PM_(2.5)*** results address the importance of local emissions control for reducing health impacts of PM_(2.5)particularly for local *** of regional transport to PM_(2.5)-related deaths in rural area was 22%larger than that in urban area due to the spatial pattern of regional transport which was more related to the rural *** resulted in an environmental inequality in the sense that people staying in rural area with access to less educational resources are subjected to higher impacts from regional transport as compared with their more resourceful and knowledgeable urban *** unexpected benefit from the multi-regional joint controls is suggested for its effectiveness in reducing the regional transport of PM_(2.5)pollution thus mitigating the associated environmental inequality.

关键词： PM_(2.5) Regional transport Local emissions Health impact Environmental inequality

Characterization of phenoloxidase of diamondback Moth,Plutella xylostella(L.)(Lepidoptera:Plutellidae) and inhibitory effects of some natural compounds on the enzyme

在线全文

学校读者我要写书评

暂无评论

Characterization of phenoloxidase of diamondback Moth,Plutel...

Phylogenetic Analysis of Orgyia pseudotsugata Single-nucleocapsid Nucleopolyhedrovirus

5th International Workshop on Management of the Diamondback Moth and Other Crucifer Insect Pests

作者： LUO Wan-Chun WANG Shu-Dong College of Plant protection Shandong Agricultural University

We investigated the characterization of phenoloxidase of diamondback moth, Plutellaxylostella(L.)(Lepidoptera:Plutellidae) and the effects of some natural compounds on the *** addition,we also studied the relationship... 详细信息

关键词： and inhibitory effects of some natural compounds on the enzyme Characterization of phenoloxidase of diamondback Moth,Plutella xylostella Lepidoptera:Plutellidae

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

中国病毒学 2007年第4期22卷 257-265页

作者： Agata Jakubowska Monique M. van Oers Imre S. Otvos Just M. Vlak Laboratory of Virology Wageningen UniversityBinnenhaven 11Wageningen6709 PDThe Netherlands Department of Biological Control and Quarantine Institute of Plant ProtectionMiczurina 20 Poznan 60-318 Poland Natural Resources Canada Canadian Forest Service Pacific Forestry Centre 506 West Burnside Road BC V8Z 1M5 Victoria Canada

The Douglas-fir tussock moth Orgyia pseudotsugata (Lepidoptera: Lymantriidae) is a frequent defoliator of Douglas-fir and true firs in western USA and Canada. A single nucleopolyhedrovirus (SNPV) isolated from O. pseudotsugata larvae in Canada (OpSNPV) was previously analyzed via its polyhedrin gene, but is phylogenetic status was ambiguous. Sequences of four conserved baculovirus genes, polyhedrin, lef-8, pif-2 and dpol, were amplified from OpSNPV DNA in polymerase chain reactions using degenerate primer sets and their sequences were analyzed phylogenetically. The analysis revealed that OpSNPV belongs to group II NPVs and is most closely related to SNPVs that infect O. ericae and O. anartoides, respectively. These results show the need for multiple, concatenated gene phylogenies to classify baculoviruses.

关键词：基因分析核型多角体病毒单核壳体生物防治花旗松鳞翅目害虫系统演化