簡介：西南大學碩士學位論文雞傳染性支氣管炎病毒（重慶株）的分離鑒定及其生物學特性研究姓名李桂清申請學位級別碩士專業(yè)預防獸醫(yī)學指導教師彭遠義20070601西南犬學碩十學位論文MASSACHUSETTS、ARKANSAS、CONNECTICUT、GRAY等血清型中和效價均為0，表明重慶株是一株IBV變異毒株。IBV重慶株SL基因的克隆測序分析提取IBV重慶株的RNA，對其SL基岡應用RTPCR方法進行了克隆與測序。使用DNASTAR軟件進行序列分析結(jié)果顯示，重慶株的SL基因與T、MUSSACHUSETTS、ARKANSAS、CONNECTICUT、GRAY等血清型S1基因同源性不高，分別為823％、775％、782％、786％、774％，進一步通過向NCBI提交重慶株的基因序列，并根據(jù)BLAST軟件檢索到與其具有最大同源性的毒株為比利時的B1648株，同源性高達996％。關鍵詞雞傳染性支氣管炎病毒重慶株S1基因序列分析II

簡介：HEBEIAGRICULTURALUNIVERSITY碩士學位畢業(yè)論文桃新品系‘保佳俊’親緣關系及生物學特性研究學位申請人指導教J工IP了日寸字父5J學科專業(yè)學位類別授予單位答辯日期李丹陳海江教授果樹學農(nóng)學碩士河北農(nóng)業(yè)大學二。一七年六月五日獨創(chuàng)性聲明本人聲明所呈交的學位論文是本人在導師指導下進行的研究工作及取得的研究成果。據(jù)我所知，除了文中特別加以標注和致謝的地方外，論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果，也不包含為獲得河北農(nóng)些大學或其他教育機構(gòu)的學位或證書而使用過的材料。與我一同工作的同志對本研究所做的任何貢獻均已在論文中作了明確的說明并表示謝意。學位論文作者簽名李母簽字日期20J年多月F日學位論文版權使用授權書本學位論文作者完全了解河北農(nóng)業(yè)大學有關保留、使用學位論文的規(guī)定，有權保留并向國家有關部門或機構(gòu)送交論文的復印件和磁盤，允許論文被查閱和借閱。本人授權河北農(nóng)業(yè)大學可以將學位論文的全部或部分內(nèi)容編入有關數(shù)據(jù)庫進行檢索，可以采用影印、縮印或掃描等復制手段保存、匯編學位論文。4保密的學位論文在解密后適用本授權書學位論文作者簽名李母簽字日期Ⅵ11年6月Y日學位論文作者畢業(yè)后去向工作單位通訊地址一導師簽名陟簽字日期汐，7年∥月歲日電話郵編J

簡介：CLASSIFICATIONNUMBER94142STUDENTNUMBER20113003SICHUANAGRICULTURALUNIVERSITYMASTERDEGREEDISSERTATIONCONSTRUCTIONANDCHARACTERANALYSISOFSTREPTOCOCCUSINIAECPSJKNOCKOUTMUTANTBYZENGYUNDIRECTEDBYPROFWANGKAIYUBASICVETERINARYMEDICINESICHUAN，YA’AN，CHINAJUNE，2014ABSTRACTSTREPTOCOCCUSINIAEUSEDNAMESTREPTOCOCCUSSHILOIISAMAJORPATHOGENOFAQUACULTUREFISHESRECENTYEARS，OUTBREAKSOFFISHDISEASESRESULTEDINSINIAEINFECTIONWEREFREQUENTLYREPORTED，WHICHCAUSEDNUMEROUSFINANCIALLOSSTHECAPSULEISANESSENTIALVIRULENCEFACTOR，WHICHISCONSISTOFMANYPOLYSACCHARIDESTHEOPERONCONDUCTTHESYNTHESISOFSINIAECAPSULEAREVERYLARGE，WHICHCONTAINS21OPENREADINGFLAMESATA11CPSJISANIMPORTANTGENEOFTHECAPSULESYNTHESISOPERON，ITENCODESONEUDPGLCEPIMERASE，WHICHCATALYSETHECOMPOSINGOFPRECURSORSOFHETEROPOLYSACCHARIDEASSEMBLINGTHECAPSULETHISSTUDYKNOCKEDOUTTHECPSJGENEINDUCEDBYTEMPERATURESENSITIVEPLASMIDPJRS233，REPLACINGTHECPSJWITHCHLORAMPHENICOLRESISTANTGENEANDTHENCONSTRUCTEDKNOCKOUTMUTANTACPSJCOMPAREDTHEMUTANTANDWILDTYPESTRAINSINGRAMSTAINOBSERVATION，COLONIESOBSERVATION，GROWRATEDETERMINATION，ADHERENCEANDINVASIONTEST，WHOLEBLOODKILLINGTESTANDCHALLENGETESTTOPRELIMINARILYINVESTIGATETHEFUCTIONOFCPSJRESULTSSHOWEDCOMPAREDWITHWILDTYPE，THEMUTANTFORMEDLONGERCHAINLENGTHANDSMALLERCOLONIESATTHESAMECULTURECONDITIONS；INTHEGROWRATETEST，OD600VALUEOFMUTANTBROTHWHENTHEGROWCURVERUNUPTOPLATEAUWAS042，WHILETHEWILDTYPEBROTHWAS128；INTHEADHERENCEANDINVASIONTEST，THEADHERENCERATEOFMUTANTTOEPITHELIOMAPAPULOSUMCYPRINIWAS2572％，THEWILDTYPE’SWAS135％THEINVASIONRATEOFMUTANTIS172％，THEWILDTYPE’SWAS034％；INWHOLEBLOODKILLINGTEST，THESURVIVALRATEOFMUTANTWAS4594％，WILDTYPE’SWAS13739％；INCHALLENGETEST，SURVIVALRATEOFFISHESINFECTEDWITHMUTANTBROTHBYINTRAPERITONEALINJECTIONWAS75％，SURVIVALRATEOFFISHESINFECTEDWITHWILDTYPEBROTHWAS50％THERESULTILLUSTRATEDTHATTHEACPSJMUTANTHASWEAKENVIRULENCETHANTHEWILDTYPESTRAINTHECPSJGENEPLAYAESSENTIALROLEINCAPSULESYNTHESISKEYWORDSSTREPTOCOCCUSINIAE；GENEKNOCKOUT；CAPSULARPOLYSACCHARIDES；CPSJ

簡介：華中農(nóng)業(yè)大學碩士學位論文禽多殺性巴氏桿菌PLPB基因克隆、表達及表達蛋白生物學特性研究姓名王紅勛申請學位級別碩士專業(yè)預防獸醫(yī)學指導教師畢丁仁20070601華中農(nóng)業(yè)大學2007屆碩士論文ABSTRACTFOWLCHOLERA，WHICHPATHOGENISPASTEURELLAMUTOCIDA，ISAKINDOFACUTE、CONTAGIOUSANDSEPTICAEMIAINFECTIONDISEASEINDOMESTICPOULTRYANDWILDBIRDS．DIFFERENTSCROTYPEPMWHICHPRODUCEDFOWLCHOLERADISEASEHASNOCROSSPROTECTIONTOEACHOTHER．THEPIPBPROTEINWHICHLOCATEDINTHEBACTERIUMOUTERMEMBRANECANPROVIDEPROTECTIONTOTHECHALLENGEOFHETEROLOGOUSSEROTYPESTRAINS．ITISINSIGNIFICANTONTHERESEARCHINGOFTHEPLPBPROTEINANTIGENANDDEVELOPINGNEWEFFECTIVEFOWLCHOLERAVACCINEASWHICHC姐PROVIDEPROTECTIONTOTHECHALLENGEOFHETEMLOGOUSSEROTYPESTRAINS．THEPRESENTSMDYFOCUSEDONTHECLONING,EXPRESSIONANDTHEEXPRESSIONPRODUCTIONOFTHEPIPBGENEOFPMOL81．WHICHWERESUMMARIZEDASFOILOWS．1．CLONINGANDEXPRESSINGTHEPIPBGENEOFTHEPASTEURELLAMULTOCIDATHEOFIGONUCLCOFIDEPRIMERSFORAMPLIFYINGTHEPIPBGENEOFPMCA81STRAINWERODESIGNEDACCORDINGTOTHESEQUENCEOFGENEOFPM70STRAILL’WHICHPUBLISHEDINGENBANK．THEAMPLIFIEDGENEWHICHIS831BPCONTAININGACOMPLETEOPENREADINGFRAME0啪W(wǎng)ASINSERTEDINTOTHEPROKARYOTEEXPRESSIONVECTORPGEXKGIANDTHERESULTEDRECOMBINANTPLASMIDPKGPIPBWASSEQUENCED．THISSEQUENCEPROCESSESAHOMOLOGYOFMORETHAN99％COMPAREDWITHTHEPUBLISHEDSEQUENCEOFPIPBGENEOFPM70INGENBANK．THEPKGPIPBWASTRANSFORMEDINTOE．COLIBL21PE3COMPETENTCELLS．AFTERINDUCTIONBY評TGA56KDARECOMBINANTPROTEINWASEXPRESSED．WESTERNBLOTANALYSISREVEALEDTHATTHERECOMBINANTPROTEINHAVEAGOODREACTIONWITHANTISERAOFFOWLCHOLERA．2．THEPRIMARYRESEARCHONTHEEXPRESSINGPROTEINOFPASTEURELLAMULTOEIDAPIPBGENETHENONIMMUNEDMICEWASINJECTEDWITHTHESERUMWHICHHARVESTEDFROMTHEIMMUNEDMICE，MEANWHILECARRYINGOUTTHEACTIVEANDPASSIVEIMMLMEPROTECTIONTEST．THERESULTSINDICATETHATTHEFUSIONPROTEIN,CODEDBYTHERECOMBINANTPLASMIDSOFPKGPLPB．WHICHEXPRESSEDINTHEE．COILBL21啪INDUCETHEILLLLNULLEREACTIONINMICEANDPROTECTIONTOTHECHALLENGEOFTHEHIGHTOXICALSTRAIN．THEIMMUNEPROTECTIONCANBEPASSEDPASSIVELYTOTHENONIMMUNEDMICE，SOWHICHCANGETTHEPOWEROFRESISTANCETOTHECHALLENGEOFTHEHIGHTOXICALSTRAINALSO．INSUMMARY,THECOMPLETEPLPBGENEWASCLONEDFROMTHEC48ISLZ曲LLANDEXPRESSEDIN／￡CO強THERECOMBINANTOFTHEPROTEINWHICHINLLLLANEACTIVITYHASBEENTESTEDM

簡介：ISOLATIONANDPARTIALCHARACTERIZATIONOFANANTIFUNGALPROTEINPRODUCEDBYBACILLUSLICHENIFORMISHSL0BYZHIXINWANGADISSERTATIONSUBMITTEDTONANJINGAGRICULTURALUNIVERSITYINPARTIALFULFILLMENTOFTHEREQUIREMENTSFORTHEMASTERALDEGREEOFSCIENCESUPERVISEDBYASSOCIATEPROFESSORHONGXIALIUCOLLEGEOFPLANTPROTECTION，NANJINGAGRICULTUREUNIVERSITYNANJING210095，PRCHINAJUNE2014本研究由中央高校基本科研業(yè)務費專項資金KYZ201141和國家自然科學基金項目31371925支持。

簡介：四川農(nóng)業(yè)大學碩士學位論文PPVVP2基因重組PCV2F2基因病毒樣顆粒的獲得與部分生物學特性研究姓名陳楊申請學位級別碩士專業(yè)預防獸醫(yī)學指導教師郭萬柱徐志文20070601四川農(nóng)業(yè)大學碩士學位論文THEACQUIREMENTOFRECOMBINANTVIRUSLIKEPARTICLESOFPPVVP2GENEWITHPCV2ORF2GENEANDITSPARTIALBIOLOGICALCHARACTERISTICSCHELAYANGPREVENTIVEVETERINARYMEDCINEDIRECTEDBYPROFGUOWANZHUASSOCIATEPRO￡XUZHIWENCOLLEGEOFANIMALSCIENCEANDTECHNOLGYSICHUANAGRICULTUREUNIVERSITYYA’ANSICHUAN，E1LCHINA，625014ABSTRACTINTHISEXPERIMENT，THEAMPLIFIEDVP2GENEPPVSTRAINSC一1WASINSERTEDINTOEUKARYOTICEXPRESSIONVECTORPPI一2EGFPANDTHERECOMBINANTPLASMIDPPI一2EGFRVP2WASOBTAINEDPCV2ORF2GENEWASAMPLIFIEDUSINGTHERECOMBINANTPLASMIDPMDPCVWHICHCONTAINSTHEWHOLEGENOMEOFPCV2STRAINSCASTEMPLATE，THENTHEGENEWASINSERTEDINTOPPI一2EGFPVP2，ANDTHEEUKARYOTICEXPRESSIONVECTORPPI一2EGFPVP2ORF2CONTAININGPPVVP2GENEPCV2ORF2GONEANDEGFPREPORTGENEWASCONSTRUCTEDTRANSFECTIONOFPPI一2EGFPVP2ORF2DNATOVETOCELLWASMEDIATEDBYLIPOSOMETHEFUSIONEXPRESSIONOFGREENFLUORESCENTPROTEINWASOBSERVEDVEROCELLSWHICHSHOWEDOBVIOUSGREENFLUOIESCENTWEREPREPAREDFORELEETRONMICROSCOPEOBSERVATIONANDTHEVLPSFORMEDBYPPVVP2WEREOBSERVEDHEALTHYPIGLETSWEREIMMUNIZEDUSINGPPI一2EGFEVP2ORF2DNATHEDYNAMICVARIATIONOFBLOODTLYMPHOCYTESANDTHEANTIBODYVARIATIONOFPPVANDPCV2INSERUNLWASMEASUREDTHERESULTSSHOWEDTHATTHERATIOOFCDS，CD4TLYMPHOCYTEANDPERIPHERALBLOODLYMPHOCYTEOFIMMUNIZEDPIGLETSRAISEDINACERTAINDEGREE，CDSTLYMPHOCYTEFELL714DAFTERIMMUNIZATIONANDTHENRAISEDRELATIVELYHIGHLEVELOFPPVPCV2SPECIFICANTIBODYWASDETECTEDFROMSERUMATTHESAMETIME，ANDTHISINDICATEDTHATAFTERPPI一2EGFPVP2ORF2TRANSFECTIONTHEVIRUSLIKEPARTICLESFUNNEDBYPPVVP2GENEANDPCV2ORF2GENERECOMBINANTHADGOODIMMTMOGENICITYTHEPPI2EGFPVP2ORF2PLASMIDVECTORCONSTRUCTEDINTHISEXPERIMENTCONTAINEDTHEUNNECESSARYGENEREGIONGIFRAGMENTOFPSEUDORABIESVIRUSPRV，WHICHCANHOMOLOGOUSLYRECOMBINEWITHPSEUDORABIESVIRUS，SOPRVPPVPCVTRIPLEGENETICENGINEERINGVACCINECANTHENBECONSTRUCTEDKEYWORDSVIRESLIKEPARTICLESVLPS；PORCINEPARVOVIRUSPPV；PORCINECIRCOVIRUS2IL

簡介：EFFECTSOFFACUI』TATIVEENDOSYMBIONTS顯西61玨江乙4刀蟠沲℃刀℃移己爿ONBIOLOGICALTRAITSOFTHEGRAINAPHID肼加B，DⅣ彳矽雹M4EMATINGTINGTHEDISSERTATIONSUBMITTEDTONANJINGAGRICULTURALUNIVERSITYINPARTIALFULFILLMENTOFTHEREQUIREMENTFORMASTERDEGREEOFSCIENCESUPERVISEDBYPROFESSORLIUXIANGDONGDEPARTMENTOFENTOMOLOGYCOLLEGEOFPLANTPROTECTIONNANJINGAGRICULTURALUNIVERSITYNANJING210095，PRCHINAMAY，2014目錄目錄摘要IABSTRACTIII第一章文獻綜述L1蚜蟲的共生菌111初級共生菌L12次級共生菌32次級共生菌在蚜蟲體內(nèi)的多重感染54第二章1221多重感染概況522多重感染對蚜蟲的影響5麥長管蚜的生物學特性及體內(nèi)共生菌的研究631麥長管蚜的生活史732麥長管蚜的發(fā)生與環(huán)境的關系733麥長管蚜體內(nèi)的次級共生菌8本研究的內(nèi)容與目的一9南京麥田麥長管蚜的次生共生菌感染動態(tài)及REGIELLAINSECTICOLA次生菌的變異11材料與方法1211麥田中麥長管蚜的取樣1212麥長管蚜DNA的提取1213各種共生菌的PCR檢測1314RINSECTICOLA序列的測定1415麥長管蚜體內(nèi)REGIELLAINSECTICOLA的去除1516數(shù)據(jù)分析方法16結(jié)果與分析1621田問麥長管蚜體內(nèi)次級共生菌的感染率一1622RINSECTICOLA中16SRRNA基因的序列分析1823麥長管蚜體內(nèi)REGIELLAINSECTICOLA的人工去除213I寸J侖一21第三章適宜溫度下REGIELLAINSECTICOLA對麥長管蚜生物學特征的影響231材料與方法2311試驗蟲源一2312不同蟲口密度下三品系麥長管蚜生物學特性的測定一2313單頭飼養(yǎng)下三品系麥長管蚜生物學特性的測定一2414數(shù)據(jù)處理及分析方法242結(jié)果與分析2521不同密度下各品系麥長管蚜有翅蚜產(chǎn)生比率一2522不同種群密度下各品系麥長管蚜的生命表參數(shù)～2523單頭飼養(yǎng)時REGIELLAINSECTICOLA對麥長管蚜生物特征的影響273討侖。29第四章高溫熱擊下次生共生菌REGIELLAINSECTICOLA對麥長管蚜生物學特性的影響31L材料與方法31

簡介：東北林業(yè)大學博士學位論文桔梗種質(zhì)資源及種子生物學特性研究姓名嚴一字申請學位級別博士專業(yè)植物學指導教師吳基日20070601終發(fā)芽率能達到80％以上，但發(fā)芽的高峰期和種子成熟度有關，成熟度越高的種子發(fā)芽高峰期越提前，反之亦然。用03％高錳酸鉀處理不同成熟度種子的結(jié)果表明03％高錳酸鉀處理對不同成熟度的種子效果不同，對成熟度好、發(fā)芽所需時間短的種子，均有降低或推遲發(fā)芽的作用，對成熟度差、發(fā)芽所需時間長的種予，03％高錳酸鉀促進種子發(fā)芽的作用很明顯。關鍵詞桔梗，種質(zhì)資源，遺傳多樣性，授粉受稽，種子成熟

簡介：SN量_66分類號密級S6872GK學位代碼309學校代碼10298學號030236南京林業(yè)大學論文題目石楠屬幾種植物抗寒性及生物學特性研究作者趙淵專業(yè)園林植物與觀賞園藝研究方向園林植物應用指導教師蘆建國副教授二OO六年六月THERESEARCHONTHEABILITYOFCOLDRESISTANCEANDBIOLOGICALCHARACTERISTICSOFP愚D(zhuǎn)療挖泌PLANTSABSTRACTTHEPLANTSOFPDFFNFDGENUSCANRESIST10WTENLPERATURESTRESSTHEMAINPURPOSEWASTODISCLOSETHEPHYSI0109ICALECOLOGYACCLIMATIONMECHANISMSTHENTHECOMPREHEⅡSIVEVALUEOFDIFFERENTPLANTS’C01DRESISTANCEABILITYCOULDBEOBTAINEDTHEMEMBRANE1EAKAGEINCREASEDWHILETHETEMPERATUREDECREASEDTHERELATIVEELECTRICCONDUCTIVITYDISTRIBUTEDAS“S”CURVETHESEMILETHALTEMPERATUREOFDIFFERENTPLANTSWEREGOTFROMLOGISTICEQUATIONTHEP。FF廳FⅡGZD6R口GOTTHEHIGHESTCOLDRESISTANTABILITYF0110WEDBYPOFF，LF口D口VFD占DNF以EANDPD“以FD工ERR“，口F口INTHEBEARINGTREEEXPERIMENTTHERESULTSALSOSHOWEDTHATTHESEMILETHALTEMPERATUREOFTHETREESINTHENOV2005WASLOWERTHANTHATATTHEBEGINNINGOFJAN2006，ANDTHEC01DRESISTANCEABILITYOFFIVETREESCOULDBEORDEREDASPDFFNFⅡGZ口6RDVARRUBENS、P矗DFI聆FD?？赟已RJ‘ROBUSTA’、P矗OFIHI45PRR“F口加、PDFF九F4叮卜D工ERF‘REDROBIN’、P，LDFF咒F4叮D占ERF‘REDTIP’。THERELATIVEELECTRICCONDUCTIVITYANDTHESEMILETHALTEMPERATUREISTHEBESTINDEXTOEVALUATETHECOLDRESISTANCEABILITY，ANDTHEMDA、SOD、CATCOULDONLYBETHEASSISTANTINDEXTOEVALUATETHEABILITY，OTHERWISETHEPODNEEDTOBESTUDIEDYETTHEINVESTIGATEDRESULTSREVEALEDTHATTHETEMPERATUREWASTHEESSENTIALENVIRONMENTAIFACTORAFFECTINGTHESEEDLINGGROWTH，WHIIETHEH嚕HTEMPERATURERESTRAINEDTHEGROWTHOFPDF跏K，RDS8，F(xiàn)HOWEVER，THEHUMIDITYANDAMOUNTOFPRECIPITATIONDONOTHINGTOTHEGROWTHOFPDFFNF口叮口S已，ITHERESULTSSHOWEDTHATTHEAMOUNTOFGROWTHOFDIFFERENTP矗DFFNFD叮口SP，F(xiàn)DIFFEREDMUCHTHE‘REDROBIN’HADTHEMOSTPOWERGROWTHPOTENTIALTHANTHE‘ROBUSTA’WHICHONLYINCREASED287CENTIMETERS，WHILETHE‘REDTIP’、‘RUBENS’SHOWEDAGOODGROWTHPOTENTIALTHE‘REDROBIN’DIFFEREDOTHERTREESWITHSHARPLYTOOTHED，BIGANDLEATHERY

簡介：石河子大學碩士學位論文莫索灣南緣沙漠心葉駝絨藜種群空間分布格局的生態(tài)生物學研究姓名賈亞敏申請學位級別碩士專業(yè)植物學指導教師劉彤20070501ABSTRACTPOPULATIONSPATIALDISTRIBUTIONPATTERNISTHERESULTOFLONGADAPTATIONANDSELECTIONBETWEENTHEBIOLOGICALCHARACTERISTICSANDENVIROMNENT，ITCANBEUSEDTOANALYZETHERELATIONSHIPSONTHETRAITOFPOPULATION，INTERSPECIFICANDINTRASPECIFICCONNECTIONANDPOPUHFIONANDANVIRONMANTTHESOUTHERNEDGEOFMOSUOWANDESERTISASOUTHERNBRANCHOFCMERBANTONGGUTEDESERTTHEVEGETATIONSTABILIZATIONOFTHEDISTRICTAFFECTTHEECOLOGICALENVIRONMENTOFNEIGHBONRINGCITIESSOWESTUDIEDTHEVEGETATIONDISTRIBUTIONANDDISTRIBUTIONPATTERNOFDOMINANCESHRUB，WEAIMEDTODISCOVERTHEINTERACTIONOFSPECIESANDENVIRONMENT，ANDPROVIDEDTHETHCORCFICSBASETOTHEPROTECTIONANDRECOVERYTHANWECANEXPLOREANDDEVELOPTHEGRAZINGCERATOIDESEWERSMANNIANATHERESULTSASFOLLOWINGDAPPLINGTHESEMIVARISN∞ANALYSISANDCHOOSING4KINDSOFSHRUBSOFHIGHERIMPORTANTVALUES，THERESULTSOFPATTERNINDICATEDCERATOIDESEWERSMANNIANA，HALOXYLONAMMODENDRON，REAUMURIASOONGORICABELONGEDTOCLUSTERDISTRIBUTIONPATTERNINDIFFERENTDEGREEINTHREEPLOTS，THESEMIGHTHAVESOMETHINGWITHTHEGROWTHCHAMOERISTICS，PROPAGATIONANDDIFFUSIONOFTHEPLANTITSELFANDMEANWHILE，THESEPROPERTIESMIGHTLIMITEDBYTHEEVCREENVIRONMENT，SOTIM默麗DIFFUSIONRELIEDONTHEMATRIX，ANDINTHECENTEROFMATRIX；COLLIGONUMLEUCOCLADWNSEHRANKBGEBELONGEDTANDOMDISTRIBUTIONINSCARER2APPLINGTHERIPLCYSKDFUNCTIONOFPOINTPATTERNTHERESULTSHOWEDTHEPATTMMOFCERATOIDESEWERSMANNIANAHADVARIEDINDIFFERANTSCALE，ANDTHEVARIATIONWERCDIFFERENTINTHETHREEPLOTS；HALOXYLONAMMODENDRON，REAVANURIASOONGORICA，C011IGONUMLEUCOELAD_MWEREMAINLYCLUSTERDISTRIBUTIONINNMPLOTSTHERESULTOFINTERSPECIESUSMEIATIONANALYSISFONNDTHEREWELTTNOINTERSPECIESASSOCIATIONBETWEENCERATOIDESEWETSMANBJSN8ANDHALOXYLONARNMODENDRONINLAND2PLOTONLYIN3PLOTWHICHISINTHESANDHINTERLAND，THEREWEREWEAKASSOCIATIONFROM0TO50TNETERTHEMWEIECOMPLEXRELATIONSHIPBETWEENCERATOIDESEWERSMANNIANAANDREAUMURIASPONGOR缸AFORTHEREASONOFTHEIRSAMEHABITATSHOWINGPOSITIVEANDMINUSASSOCIATIONINTHREEPLOTS3ACCORDINGTOTHEANALYSISOFDISTRIBUTIONANDENVIRONMENTABOUTCERATOIDESEWERSMANNIANAITMAINLYDISTRIBUTEDONTHEDESERTSTEPPEOFSANDBOTTOMANDSANDDUNE，WHICHHADHIGHERWATERCONTENTANDORGANICMATTERANDHIGHERPHANDCONDUCTIONRATIO；HALOXYONAMMODENDRONDISTRIBUTEDONTHESANDTOP；REAUMUFIASOONGONCAMAINLYDISTRIBUTEDONTHELOWLYINGOFSANDBOTTOMWHICHHADTHEHIGHESTPHANDCONDUCTIONRATIOWEFOUNDTHEKEYFACTORSAFFECTEDSPECIESDISTRIBUTIONW∽THESHAPEANDPOSITIONOFSLOPE，THEWEAKINTETACTIONOFSPECIESWUSSECONDARYINALLFACTORS4WEFOUNDTHESIMILARPATTERNOFBIGANDYOUNGPLANTSOFCERATOIDESEWERAMANNTANAINTHREEPLOTSWHICHBELONGEDTOCLUSTERPARERNANDHADCOTMECFIONWITLLTHEMECHANISMOFSEEDDIFFUSIONFROMTHETRANSITIONALOASISZONETOTHEHINTERLANDINTHESANDTHEREWEFEINCREASEDNUN出E陪OFREGENERATIONSEEDLINGSWHICHMIGHTREFLECTTHEINCREASEDTRENDANDWELLADAPTATIONTOTHESANDHABITATBASEDONTHERESULTOFRELATIONSHIPSBETWEENPATTERNANDENVIRONMENTWEPROPOSEDSOLR艟NMASURETOPROTECTTHEDESERTVEGETATIONWECANMATCHCERATOIDESEWERSMANNIANAANDHALOXYJONAMMODENDRONINTHESANDDANEMADTOPMATCHCERATOIDESEWERSMANNIANAANDREAUMURIASOONGORIEAINTHESANDBOTTOMANDDUNEONTHEBASEOFCLUSTERPARERNOFONE’8OWNTHENWECANMAKEUSEOFTHEECOLOGICALⅡ

簡介：福建農(nóng)林大學碩士學位論文福建紅點唇瓢蟲生物學特性及其捕食功能的研究姓名郭瑞鳴申請學位級別碩士專業(yè)森林保護學指導教師黃金水郭文碩20070401禍矬農(nóng)林大學頑{二學位論文摘要紅點屑瓢蟲CHILOCORUSKUWANAESILVESTRL屬于鞘翅目COLEOPTERA瓢蟲科COCCINELLIDAE盔唇瓢蟲屬CHILOCORUS，在國內(nèi)分布于黑龍江．吉林、遼寧、山東、江蘇、廣東、禍建等地；在國外主要分布于日本、朝鮮、意大利等國．本研究主要對紅點屑瓢蟲的形態(tài)特征、生物學特性、捕食功能進行系統(tǒng)觀察．摸清并掌握其在福建地區(qū)發(fā)生情況，以及其對松林害蟲松突圓蚧的捕食能力，并對其林間應用作了初步探討，為推廣應用紅點唇瓢蟲生物防治松突圓蚧提供了科學依據(jù)。1紅點唇瓢蟲的生物學特性紅點唇瓢蟲是我國廣泛分布的一種天敵瓢蟲．能夠捕食農(nóng)、林，果樹、花卉上5科38種蚧殼蟲，是一種優(yōu)秀的捕食性天敵昆蟲．在福建松林中，紅點唇瓢蟲是松突圓蚧的主要天敵瓢蟲，對松突圓蚧的控制能力較強，有廣泛的應用前景．通過20052006年在福建省平潭、福消等地的試驗觀察，紅點唇瓢蟲在福建省福州地區(qū)LA發(fā)生4代，以成蟲在樹皮裂縫、石縫和枯枝落葉等處越冬．越冬時問大約在每年11月下旬到12月之間，翌年3月初氣溫回暖，越冬代成蟲開始出蟄，并頻繁交尾。越冬瓢蟲的保存率較高，達86．75％，室內(nèi)飼養(yǎng)的越冬成聯(lián)大約能存活86．5D。自然狀態(tài)下7月仍可看到越冬瓢蟲活動。瓢蟲完成一代的時問受溫度影響較大，溫度高則發(fā)育較快．完成一代需要較短的時間；溫度低則發(fā)育慢，完成一代需要較長時間．每年3月下旬第1代幼蟲開始出現(xiàn)，經(jīng)過從卵到幼蟲、蛹的蛻變，最后羽化成蟲，整個發(fā)育過程歷時大約57D；第2代和第3代6月8月由于氣溫較高，發(fā)育較快，平均發(fā)育歷期僅需32D和31D；第4代瓢蟲卵出現(xiàn)在9月上中旬，最遲12月上旬羽化成蟲．12月下旬左右進入越冬。各代成蟲壽命差異較大，以越冬代成蟲壽命晟長，平均217．9D；2代成蟲壽命較短，平均109．2D，產(chǎn)生變化的原因可能與氣候有關。羽化后的成蟲經(jīng)一段時間的發(fā)育性成熟后開始頻繁交尾并產(chǎn)卵。成蟲一生可多次重復交尾，交尾時間長短不一．交尾后的成蟲經(jīng)一段時間后開始產(chǎn)卵，在整個產(chǎn)卵期中會出現(xiàn)長短不同的產(chǎn)卵間期．第1代瓢蟲出現(xiàn)時間剛好與松突圓蚧火發(fā)生時問相吻合，瓢蟲有足夠多的食物來源，產(chǎn)卵量最大，平均152．7粒。紅點唇瓢蟲成蟲耐饑力較強，其耐饑能力隨著羽化后的發(fā)育時間增長而變大。白然條件下的紅點唇瓢蟲具有假死性，活動、產(chǎn)卵場所隱蔽等特性，有利于其在林間建立穩(wěn)定的種群，維持白身種群的延續(xù)。2紅點唇瓢蟲捕食功能的研究在實驗室條件下，運用HOLLINGII型圓盤方稃對紅點屑瓢蟲捕食功能進行擬合，擬合效果較好。室溫F，紅點屑瓢蟲的捕食能力隨著自身齡期增人而增大．其食暈隨著貓物的增加牛負指數(shù)增人，并逐漸趨近于一個晟人值。其中，成蟲和四齡幼蟲對松突圓蚧捕食越晟人，其圓盤方程為NT羆和ARTI器予齡期瓢蟲日

簡介：分類號UDC牟中唯J『鬣碩士學位火等論文密級編號學位申請人姓名塑雪鶴申請學位學生類別全日劌塑士申請學位學科專業(yè)微生物鱟指導教師姓名劉全林進豎⑧碩士學位論文MASTER’S1HESISIDENTIFICATIONANDCHARACTERIZATIONOFNOVELLAENTICATIONANARACTERIZAUONOIANOVELLIPOPROTEINLIP40FROMACTINOBACILLUSPLEUROPNEUMONIAEATHESISSUBMITTEDINPARTIALFULFILLMENTOFTHEREQUIREMENTFORTHEMSDEGREEINMICROBIOLOGYBYXUEHEHUPOSTGRADUATEPROGRAMSCHOOLOFLIFESCIENCESCENTRALCHINANORMALUNIVERSITYSUPERVISORLIUJIRDINACADEMICTITLELECTURERAPPROVEDAPRIL，2015

簡介：CONSTRUCTIONOFSRTAGENEDELETIONMUTANTSTRAINSOFLISTERIAMONOCYTOGENESANDRESEARCHONSOMEBIOLOGICALCHARACTERISTICSADISSERTATIONSUBMITTEDTOSHIHEZIUNIVERSITYINPARTIALFULFILLMENTOFTHEREQUIREMENTSFORTHEDEGREEOFMASTEROFAGRICULTUREBYWUXUELINGPREVENTIVEVETERINARYMEDICINEDISSERTATIONSUPERVISORPROFMAXUNJUNE,2015

簡介：廣西大學碩士學位論文桉樹黛袋蛾生物學特性與生態(tài)學特性的研究姓名常明山申請學位級別碩士專業(yè)生態(tài)學指導教師楊振德20080530樹葉齡也具有選擇性，如對尾葉桉成熟葉的取食量是嫩葉的2倍多。試驗結(jié)果還表明黛袋蛾4齡幼蟲對尾葉桉葉片利用率和消化率相對較高，而對大葉桉和窿緣桉的利用率和消化率相對較低。研究結(jié)果還表明，黛袋蛾幼蟲取食尾葉桉后體內(nèi)纖維素酶的活力明顯增加。6本文測定了3種桉樹葉片物理、化學性質(zhì)。結(jié)果表明尾葉桉和大葉桉的鮮重、葉片面積、比葉面積、葉干重、體積、海綿組織厚度相對窿緣桉較大。同時，尾葉桉和大葉桉葉片的總糖和還原糖含量最高，窿緣桉最低；尾葉桉葉片的游離氨基酸含量最高，大葉桉和窿緣桉較低；蛋白質(zhì)含量窿緣桉最高，其次為尾葉桉；窿緣桉總酚含量最高，其次為大葉桉；對于尾葉桉不同老嫩程度的葉片，其內(nèi)部各成份含量均有明顯的差異。7選用4種殺蟲劑對黛袋蛾進行室內(nèi)藥效比較試驗。結(jié)果表明，高效氯氰菊酯和快殺靈的殺蟲效果比較好，阿維菌素和敵敵畏殺蟲效果較差。黛袋蛾取食和噴施殺蟲劑均可誘導尾葉桉葉片內(nèi)保護酶過氧化氫酶、過氧化物酶活性明顯升高，說明這兩種處理均能誘導尾葉桉產(chǎn)生一定程度的抗蟲性；黛袋蛾取食對尾葉桉幼苗光合速率沒有明顯的影響；黛袋蛾取食后尾葉桉葉片的總酚含量顯著升高，而噴施殺蟲劑對總酚含量沒有明顯的影響。8本文的創(chuàng)新點在于首次運用生物學、生態(tài)學和植物生理學多學科知識，系統(tǒng)的研究了黛袋蛾的生物學、生態(tài)學特性及其與桉樹生理生化狀況之間的關系，并對防治技術進行了初步研究。關鍵詞桉樹黛袋蛾生物學特性生態(tài)學特性生化指標防治技術

簡介：IIFLLLIIIIII1111JY333479大肇●●ANIVERSITY_2017屆碩士學位論文山西引種沙棘的生物學特征和適應性研究作者姓名指導教師學科專業(yè)研究方向培養(yǎng)單位堵喬旱1豆學習年限張瓊姝張小民副教授細胞生物學育種與適應性研究生命科學學院2014年9月至2017年6月卜眭THESISFORMASTER’SDEGREE，SHANXIUNIVERSITY，2017STUDYONTHEBIOLOGICALCHARACTERISTICSANDADAPTABILITYOFINTRODUCEDSEABUCKTHORNINSHANXIPROVINCESTUDENTNAMEZHANGQIONGSHUSUPERVISORPROFZHANGXIAOMINMAJORSPECIALTYDEPARTMENTCELLBIOLOGYBREEDINGANDADAPTABILITYRESEARCHSCHOOLOFLIFESCIENCERESEARCHDURATION201409201706JUNE，2017