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簡介:山東理工大學(xué)山東理工大學(xué)碩士學(xué)位論文防治地黃連作障礙有益細(xì)菌生物學(xué)特性及大田定殖能力的研究防治地黃連作障礙有益細(xì)菌生物學(xué)特性及大田定殖能力的研究ACTIVITYCOLONIZATIONABILITYOFUSEFULSTRAINSONCROPPINGOBSTACLESOFREHMANNIAGLUTINOSA研究生譚亞男譚亞男指導(dǎo)教師馬匯泉教授馬匯泉教授協(xié)助指導(dǎo)教師溫學(xué)森副教授溫學(xué)森副教授申請學(xué)位門類級別理學(xué)碩士理學(xué)碩士學(xué)科專業(yè)名稱生物化學(xué)與分子生物學(xué)生物化學(xué)與分子生物學(xué)研究方向微生物分子生物學(xué)微生物分子生物學(xué)論文完成日期2010年4月20日2010年4月20日單位代碼10433學(xué)號Y0710167分類號Q93995密級學(xué)位論文出版授權(quán)書本人完全同意中國優(yōu)秀博碩士學(xué)位論文全文數(shù)據(jù)庫出版章程(以下簡稱“章程”),愿意將本人的學(xué)位論文提交“中國學(xué)術(shù)期刊(光盤版)電子雜志社”在中國優(yōu)秀博碩士學(xué)位論文全文數(shù)據(jù)庫中全文發(fā)表。中國優(yōu)秀博碩士學(xué)位論文全文數(shù)據(jù)庫可以以電子、網(wǎng)絡(luò)及其它數(shù)字媒體形式公開出版,并同意編入中國知識資源總庫,在中國博碩士學(xué)位論文評價(jià)數(shù)據(jù)庫中使用和在互聯(lián)網(wǎng)上傳播,同意按“章程”規(guī)定享受相關(guān)權(quán)益。作者簽名導(dǎo)師簽名年月日年月日研究生學(xué)號Y0710167所在院系生命科學(xué)院
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簡介:農(nóng)學(xué)碩士學(xué)位論文凹唇壁蜂的生物凹唇壁蜂的生物學(xué)特性特性及其在蘋果梨及其在蘋果梨園上的利用上的利用研究STUDYONTHEBIOLOGYACTEROFEXCAVATATOUTILIZEONPINGUOLIID叢明亮果樹學(xué)延邊大學(xué)學(xué)校代碼10184分類號分類號密級UDC學(xué)號延邊大學(xué)碩士學(xué)位論文凹唇壁蜂凹唇壁蜂的生物學(xué)的生物學(xué)特性特性及其及其在蘋果梨園上在蘋果梨園上的利用利用研究研究STUDYONTHEBIOLOGYACTEROFEXCAVATATOUTILIZEONPINGUOLIID研究生姓名叢明亮培養(yǎng)單位農(nóng)學(xué)院指導(dǎo)教師姓名、職稱呂龍石教授學(xué)科專業(yè)果樹學(xué)研究方向果樹傳粉昆蟲的開發(fā)利用論文提交日期2010年5月23日
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簡介:中圖分類號學(xué)校代碼LQ224學(xué)號皇籃LQ2鰱隸北蕓警’六謦碩士學(xué)位論文野慈姑生物學(xué)特性及其相關(guān)防除理論研究作者茁礁學(xué)位類別盔堂甄土導(dǎo)師趙拯山熬授所在學(xué)院盔堂陸一級學(xué)科擅物堡控二級學(xué)科盔蘊(yùn)雯二O一七年六月目錄~~目錄摘要???????????????????????????????????..I英文摘要??????????????????????????????????I1前言?????????????????????????????????????????????一11.1水稻田雜草發(fā)生及防除技術(shù)????????????????????????11.1.1水稻田雜草發(fā)生特點(diǎn)及危害??????????????????????11.1.2水稻田雜草化學(xué)防除技術(shù)???????????????????????21.2野慈姑生物學(xué)特性及研究現(xiàn)狀???????????????????????31.2.1野慈姑生物學(xué)特性??????????????????????????31.2.2野慈姑分布情況與危害????????????????????????41.2.3野慈姑抗藥性????????????????????????????51.2.4野慈姑防除現(xiàn)狀及存在問題??????????????????????61。2.5野慈姑研究進(jìn)展???????????????????????????71.3野慈姑化學(xué)防除技術(shù)??????????????????????????一81.3.1防野慈姑除草劑的應(yīng)用????????????????????????81.3.2防野慈姑除草劑特性及作用機(jī)理????????????????????91.4研究目的與意義??????????????????????????????.112材料與方法???????????????????????????????..122.1試驗(yàn)材料???????????????????????????????122.1.1樣品采集?????????????????????????????122.1.2供試除草劑????????????????????????????.122.1.3主要儀器設(shè)備???????????????????????????.122.2試驗(yàn)設(shè)計(jì)???????????????????????????????122.2.1野慈姑的生物學(xué)特性????????????????????????.122.2.2野慈姑結(jié)球前和結(jié)球后的化學(xué)防除技術(shù)?????????????????142.3數(shù)據(jù)處理???????????????????????????????143結(jié)果與分析???????????????????????????????..153.1野慈姑的生物學(xué)特性??????????????????????????153.1.1野慈姑營養(yǎng)生長和生殖生長規(guī)律探討??????????????????153.1.2播種深度及水層深度對野慈姑生長的影響????????????????183.1.3野慈姑球莖分布深度調(diào)查??????????????????????..2L3.1.4野慈姑球莖及種子出苗特性研究???????????????????..223.2野慈姑的化學(xué)防除技術(shù)?????????????????????????263.2.1野慈姑結(jié)球前的化學(xué)防除技術(shù)????????????????????..263.2.2野慈姑結(jié)球后的化學(xué)防除技術(shù)????????????????????..284討{侖?????????????????????????????????????????????一314.1野慈姑難防的原因???????????????????????????31
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簡介:分類號密級單位代碼學(xué)號名微震業(yè)大學(xué)10364S03071005008學(xué)位論文煙草赤星病生物學(xué)特性研究及同工酶技術(shù)在鏈格孢分類中的應(yīng)用STUDYO5IOLOGICALCHARACTERISTICSOFALTERNARIAALTERNATAANDELECTROPHORESISTECHNIQUEINTHECLASSIFICATIONOFALTERNARIA研究生指導(dǎo)教師申請學(xué)位門類級別專業(yè)名稱研究所在毯壓直置逯熬攫型堂亟邀生塑堂方向基苴堂學(xué)院生僉抖堂堂瞳答辯委員會主席絲二00六年六月很低的水平。而分泌淀粉酶活性,風(fēng)陽地區(qū)的菌株是最高的。關(guān)鍵詞赤星病、鏈格孢、可溶性蛋白、同工酶電泳
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簡介:內(nèi)蒙古農(nóng)業(yè)大學(xué)碩士學(xué)位論文沙蔥種子生物學(xué)特性研究姓名楊忠仁申請學(xué)位級別碩士專業(yè)蔬菜學(xué)指導(dǎo)教師郝麗珍20060501ASTUDYONBIOLOGICALCHARACTERISTICSOFALLIUMMONGOLICUMREGELABSTRACT4砌聊御毽D缸Z刪蚓W(wǎng)AS牟皿咖JALANDXERICPLANT缸AⅡ岫OT13JACEAE,ITWASALLDID醯唧J11M∞鰣PLATEAUAR,DDIS珊皿ED嘞JILHM盯M∞鰣H11LESTUDYAABIOLOGICALW勰COMPOSEDOF蠡忙鋤PECTS出ERE蚍LTSSHOWED1.AMIMACIDANDVIMMINESOO刪啪SVDYI如UDH缸SEED,SOLHEVAHEOF蝴ARDUTILIZATIONWAS毅IVM止I則證MⅨI婦ATLDⅨ吐BLE2.SEEDS“AXEDGEAMATEDUDNG5℃TO30AC‘WITTATHEOPFILMMMAPER址TREOF1911℃.SOAKEDSEEDSXMMLDHAVEAHI垂盯G缸曲刪∞I11D既血矗唱8“24KTHEPROL療LIMEFOR∞她WAS12110L邸ANDIFITW骶MOLETHAN24L碣THUSDE口圈∞THEGMMA婦PEFO即丘A護(hù)FILE群皿血L商ONPC北曲鏟ANDG舡玎I婦VIABILIFIESUNDERTHELIGHTIREMLNMTOF24HRGDDE四EA8EDBY7445%AND65.5504THANFLLOSEUO_DERLAHEDALKI/EALML缸OF24HRSKTWHICHKNDICATEDIKATITSSOEDW鵝SDLSITIVET01I出崦孽卸血1蕊∞LIME.3.INTHEGEMFIN州ONO刪腸肼珊磺腳R酬倒S骶血唱L皿|曲,RADICELJ碘暇曲唱嗽SOLUBLE咿CORMA,AMINOACID鋤DVITALRINCORLT咖刪BUT珥00由CONTENTANDSEEDJJFLG酊W西G陸DQ掀STARDA刪O舡LDCHANGEFROMDMEA衄TORISING舢】刪CORAMTCOULDCHANGEFLORAIISINGTOAECREA咄4.5“25DWASNNBL,ORIPMESSAFTERBLOSSOM,THEVEHNEIAI∞山】F0嘧LANDSOLUBLEROGER。0I衄NDEGRADED,STARCH00刪COMAINED出渤匆J呻TXXLTEMCOULDCHANGFROMDEAI啦幻媳THEAC西IIYOFSUP∞XIDEDISMMASESODANDCATA酬CATD州塒岫,DE∞ATX蛐MT出Ⅱ氌;EDFROMDECII血唔T0而SIR瑪.25~40DISDEHYDRATIONOFSEED,THERESULTSINDICATEDTHAT、船OO刪DE∞朗∞山礎(chǔ)ANDSTARCHOOFM臣TBEGANTOACCTMALA塢THEACAV證YOFC蠲SODANDLOXRALSED,MDACON咖TDEDILEDTOMMUP,LIPIDWASATXXANULATEDTHATWASPRIORTOSTAROHANDPMTMINSEEDGROWTH,THEAAMTYOFSODANXTCATDECLINEDDURINGTIPEAESS,BUTRAISEDDURINGDEHYDRAFITM,SOLTAEDMAMGEOFMDAWASSMALT5INFILE簪叩幽OF4歷L刪MOOGO//OANRESEEDS,DMAGTHESTRESSOFLOW把印E岫B4咖TMATMAMMANDL班ANDAFTERTHESLRESSOFTHEM,EONPAMDTO20℃,LJPJD刪RAISED,SOLUBLEALGERCORMATDECKED,THEACTIVITYOFSODRAISED,MDACORAEMDROPPED.6INAHEDMMMYOF4如刪塒∞擎棚R銘DSEEDS,FL】EGEMFIMTIONINDEXRAISEDGRADMNY,THECOF吐EMOFPI吼畫烏MDAR】DSOHLBLECHANGEDFROMD,4NGTODE曲血】呂STARD_LDROPPED.KAYWORD砌刪嘴婦嘲SEED;SARDYVEGETABLE勵北泓耐口研捌舭
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簡介:四川農(nóng)業(yè)大學(xué)碩士學(xué)位論文綠色粘帚霉生物學(xué)特性及其對玉米紋枯病生防潛能的初步研究唐貴群指導(dǎo)教師塞盛塹熬援學(xué)科專業(yè)撞物瘟翌堂研究方向JII茸堂區(qū)撞物直菌性瘟宣2006年6月ABSTRACTRHIZTMTON缸MLANIWASISOLATEDFROMTHEINFECTEDSHEATHOFMAIZEINSUBURBOF、RAA11SICHUANTHEPATHOGENWASBELONGTSOLANIAGLIA107STRAINSOF“VIRENSWEREISOLATEDFROMTHEDIFIERENTCROPSOLIINSURBURBOFYAANACCORDINGTOTHESITESWHERESTMISWEREISOLATED,HYPHALGROWTHRATEANDCOLOROFTHECOLONY37STRAINSOFGVIRERLVWERECHOSEDTOMAKEFURTHERSTUDY4STRAINS,NAMEDG13G17G25ANDG33RESPECTIVELYTHATPOSSESSEDSTRONGERPOTENTIALABILITYFORPLANTDISEASEBIOCONTMLWERESCREENEDFROMTHE37STRAINSOFGVIRENSTHROUGHTHEHYPHALGROWTHRATE,DUALCULTUREONPDAPLATES,EFFECTSOFVOLATILEANDNONVOLATILEMETABOLITESSOMEBIOLOGICALCHARACTERSOF4STRAINSOFGVIREMWERETHATTHEOPTIMUMCONDITIONSFORHYPHALGROWTHRATEOFGWRENSWEREDARKNESS25“0TO30℃PH5TO8ANDTHEOPTIMUMCONDITIONSFORSPORESPOTCLARIONWEREDARKNESS,25“CTO35“CANDPH5TO8ASWELLASTHEOPTIMUMCONDITIONSFORCONIDIOPHOREGERMINATIONWERELIGHL30“CTO35“CANDPH5TO8TEMPERATUREILLUMINATIONANDPHWERETHEMOSTIMPORTANTFACTORSOILHYPHALGROWTHTALEANDSPORESPOMLATIONOFGVIRENTHEORTHOGONAILESTOFTHREEFACTORSIETEMPERATURE,ILLUMINATIONANDPH,WIGSDESIGNEDTHERESULTSHOWEDTHATTHEBESTCONDITIONSCOMBINATIONOFHYPHALGROWTHLATEWERE25℃PH6INDARKNESSANDTHEOPTIMUMCONDITIONSFORSPORESPOMLATIONWERE25“12,PH5INLIGHTTHEEFFECTSOFGVIRENSONGERMINATIONOFMAIZESEEDSHOWEDTHATLOWCONCENTRATIONSFERMENTATIONLIQUIDOFGVIRENSMADEFORHIGHGERMINATIVERATEANDCOULDPROMOTETHEGROWTHOFRADICLEANDPLUMULEOFMAIZESEEDANDHIGHCONCENTRATIONSFERMENTATIONLIQUIDOFGVIRENSREDUCEDTHEGERMINATIVERATE,ANDRESTRAINEDTHEGROWTHOFRADICLEANDPLUMULEOFMAIZESEEDTHEREWASLITTLEEFFECTONGROWTHOFMAIZESEEDLINGBYAPPENDINGBRANSANDCULTUREOFGTJRENLINTOSOILTHEREWASOBVIOUSLYEFFECTONMAIZESEEDINGGROWTHWHENAPPENDINGCULTUREOFGVIRENSMIXEDWITHPCNBINTOTHESOILANDTHEPLANTHEIGHTSWEREMUCHHIGHERTHANOTHERTREATMENTSANDTHERATIOOFROODMEMWASSMALLERTHANOTHERTREATMENTS1I
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簡介:馬占相思和大葉相思的傳粉生物學(xué)李軍2010屆碩士中國林業(yè)科學(xué)研究院馬占相思和大葉相思的傳粉生物學(xué)李軍2010屆碩士中國林業(yè)科學(xué)研究院學(xué)位論文馬占相思和大葉相思的傳粉生物學(xué)中國北京學(xué)位論文作者李軍指導(dǎo)教師姓名黃烈健副研究員指導(dǎo)小組成員曾杰研究員曾炳山研究員申請學(xué)位級別碩士專業(yè)名稱林木遺傳育種研究方向相思育種論文答辯日期2010年6月
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簡介:山東農(nóng)業(yè)大學(xué)碩士學(xué)位論文廣東省番木瓜病原真菌鑒定及生物學(xué)特性研究姓名杜宜新申請學(xué)位級別碩士專業(yè)植物病理學(xué)指導(dǎo)教師劉開啟馮巖20060515山東農(nóng)業(yè)大學(xué)碩士畢業(yè)論文BPCI氣BDNAEDTARDNARDNAITSPCRXGALIPTG嘣SSDSEBTE玳TP縮略詞ABBREVIATIONSBASEPAIR堿基對CETYLTRIMETHYLAMMONIUMBROMIDE十六烷基三甲基溴化胺DEOXYRIBONUCLEICACID脫氧核糖核酸ETHYLENEDIAMINETETRAACETICACIA乙二胺四乙酸RIBOSOMALDNA核糖體DNARIBOSOMALDNAINTERNALTRANSCRIBEDSPACERS核糖體DNA內(nèi)轉(zhuǎn)錄間隔區(qū)POLYMERASECHAINREACTION聚合酶鏈反應(yīng)5溴一4一氯3吲哚BD半乳糖苷異丙基硫代一BD半乳糖苷TRIHYDROXYMETHYLAMINOMETHANE三羥甲基氨基甲烷SODIUMDODECYLSULFATE十二烷基硫酸鈉ETHJDUMBROMIDE溴化乙錠TRISEDTABUFFERTE緩沖液DEOXYRIBONUELEOSIDETRIPHOSPHATE脫氧核糖核苷三磷酸
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簡介:滇丁香生殖生物學(xué)研究滇丁香生殖生物學(xué)研究萬友名萬友名20102010屆碩士碩士中國林業(yè)科學(xué)研究院中國林業(yè)科學(xué)研究院學(xué)位論文滇丁香生殖生物學(xué)研究中國北京學(xué)位論文作者萬友名指導(dǎo)教師姓名李正紅研究員申請學(xué)位級別碩士專業(yè)名稱園林植物與觀賞園藝研究方向野生花卉論文答辯日期2010年6月
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簡介:Y95929T,分類號墜13S§熊四川農(nóng)業(yè)大學(xué)碩士學(xué)位論文學(xué)號320030610飼草玉米生物學(xué)特性及飼用營養(yǎng)價(jià)值研究任勇2006年6月60D刈割處理的鮮、干物質(zhì)產(chǎn)量和營養(yǎng)成分產(chǎn)量顯著高于間隔25~39D刈割處理。其中,間隔53D刈割CP產(chǎn)量最高,間隔25D刈割CP產(chǎn)量最低。且間隔25~39D刈割5~6茬后就不再萌發(fā),表明刈割頻率太高不利于飼草玉米再生。5.密、肥試驗(yàn)研究結(jié)果表明,飼草玉米適宜種植密度為45000株.HM?!?0000株HM2,適宜施氮量為300KGHM.2。關(guān)鍵詞飼草玉米;生物學(xué)特性;物質(zhì)產(chǎn)量;飼用營養(yǎng)價(jià)值
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簡介:湖南農(nóng)業(yè)大學(xué)碩士學(xué)位論文重組增效蛋白的廣譜增效活性及其若干生物學(xué)特性姓名胡松奇申請學(xué)位級別碩士專業(yè)植物保護(hù)指導(dǎo)教師袁哲明20061201WIDESPECTRUMSYNERGYANDBIOLOGICALCHARACTERISTICSOFRECOMBINANTENHANCINABSTRACTTHEENHANCINNAMEDP96ISAPARTOFTHEPROTEINEXPRESSEDBYTHEFULLLENGTHENHANCINGENEFROMTNGVINESCHERICHIACOLIASANEWKINDOFBIOLOGICSYNERGIST,ITHASBEPRIMITIVELYDEMONSTRATEDTHATITGALLSIGNIFICANTLYINCREASETHEVIRULENCEOFBACILLUSTHURINGIENSISBTANDAVERMACTINSTOHELICOVERPAARMIGERABASEDONTHAT,F(xiàn)URTHERRESEARCHWASCARRIEDOUTARMEDATP96’SSCALEOFBROADSPECTRUMARECOMBINANTENHANCINGPROTEINFROMTRICHOPLUSIANIGRANULOVIRUS,EXPRESSEDINESCHERICHIACOILANDNAMEDASP96,HADBEENSHOWNTOINCREASETHESUSCEPTIBILITYOFBIOINSECTICIDESTOINSECTPESTSSIGNIFICANTLYINTHEPREVIOUSSTUDYASERIESOFBIOASSAYWERECARRIEDOUTFORESTIMATINGTHEBIOACTIVITIESOFP96INTHISPAPERSEVERALBIOLOGICALCHARACTERSWERECLARIFIEDTOPROVIDEFURTHERPROOFSFORP96’SACTIVITYANDITSAPPLICATIONTHERESULTSWEREINDICATEDINTHEFOLLOWINGOCCLUSIONBODIESFORMEDBYP96WEREQUITESTABLEWHENEXPRESSEDINECOLI,HOWEVER,ITCOULDBEDISSOLVEDEFFECTIVELYINNA2C03SOLUTIONORINMIDGUTDIGESTIVEJUICEOFTHE5THINSTARLARVAEOFCOTTOUBOLLWORM,HELICOVERPAARMIGERA,INVITROACCORDINGTOSDSPAGE,PERITROPICMEMBRANEOFCOTTONBOLLWORMWASDECOMPOSEDCLEARLYBYP96WITHTHEINCREASEOFCONCENTRATIONOFP96,THEMORTALITYOFCOTTONBOLLWORMCAUSEDBYNUCLEARPOLYHEDROSISVIRUSINCREASEDTILLITSSATURATIONCONCENTRATION。676X10’OCCLUSIONBODIES/MLITSBIOACTIVITYWASINHIBITEDSTRONGLYBYETHYLENEDIAMINETRAACETICACID,WHICHFORMEDACOMPLEXCOMPOUNDWITHTHEMETALIONZNZINTHEPROTEINKEYWORDSRECOMBINANTENHANCIN;WIDESPECTRUMSYNERGY;BIOLOGICALCHARACTERISTIC;HELICOVERPAARMIGERA
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上傳時(shí)間:2024-03-03
頁數(shù): 34
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簡介:LIIIILIJHLIJILLLLJHIHHLHIY3236207碩士學(xué)位論文封面∞”烤一一一研壤?!阶泻哑騀大學(xué)學(xué)術(shù)學(xué)位碩士研究生學(xué)位論文浙江洹縫三瘥梭王蟹生物蘭簽延盆塹盈放遺窒量鮑盈定作者姓名指導(dǎo)教師;學(xué)科專QE所在學(xué)院;提變?nèi)毡劳卤O(jiān)王迪塞一漁些炎監(jiān)韭芒堂醫(yī)2QI生生旦』碩士學(xué)位論文內(nèi)封2ADISSERTATIONFORMASTER’SDEGREESUBMITTEDTOZHEJIANGOCEANUNIVERSITYANALYSISOFBIOLOGICALCHARACTERISTICSOFPORTUNUSTRITUBERCULATUSANDTHEDETERMINATIONOFRELEASINGCAPACITYCANDIDATEZHANGSANSUPERVISORPROFESSORWANGSPECIALITYFISHERYRESOURCESDATEOFSUBMISSIONAPRIL2017浙江海洋大學(xué)
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上傳時(shí)間:2024-03-02
頁數(shù): 53
大?。?3.41(MB)
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簡介:高祥英淡水魚中耐冷菌菌群分析與特征腐敗菌生物學(xué)特性研究摘要淡水魚蛋白質(zhì)含量高,因此在死后腐敗變質(zhì)迅速,其主要腐敗因素是微生物的腐敗,淡水魚的體表、腮以及腸道內(nèi)攜帶大量的腐敗茵,在魚類死后很容易導(dǎo)致肉質(zhì)的腐敗變質(zhì),由于淡水魚生活的水域、捕撈的季節(jié)以及淡水魚種類的不同,其攜帶的細(xì)菌可能存在差異,因此本文從不同地區(qū)采集不同種類淡水魚樣品,分析其攜帶的耐冷菌的菌群及在低溫貯藏過程中的菌相變化,并研究不同菌屬之間的生長參數(shù)以及不同菌株在腐敗過程中的腐敗特征,為淡水魚在冷藏過程中的有針對性的抑制腐敗菌提供理論依據(jù)。主要研究方法和結(jié)果如下1分別采集湖南岳陽及江蘇揚(yáng)州地區(qū)鳙魚、草魚、鯽魚樣品,共分離得到耐冷茵候選菌株143株,其中湖南岳陽樣品中共分離得到83株,江蘇揚(yáng)州樣品中共分離得到60株。革蘭氏染色結(jié)果表明其中G_菌121株,占846%,菌體形狀為桿狀、球狀、球桿狀等。采用形態(tài)觀察、生理生化分析、REPPCR指紋圖譜和16SRDNA測序鑒定對143株耐冷菌株進(jìn)行鑒定,結(jié)果發(fā)現(xiàn),143株耐冷菌株分為七個屬,分別為黃桿菌屬、希瓦氏菌屬、不動桿菌屬、氣單胞菌屬、嗜冷桿菌屬、假單胞茵屬和從毛單胞菌屬。其中,希瓦氏菌屬菌株最多,共66株;湖南岳陽樣品中希瓦氏菌屬占3625%,其次是不動桿菌屬和氣單胞菌屬,分別占25%和1375%江蘇揚(yáng)州樣品中希瓦氏菌屬所占比例高達(dá)5873%,其次是黃桿菌屬,占所分離細(xì)菌的2381%。對3種淡水魚冷藏過程中菌相變化進(jìn)行分析,發(fā)現(xiàn)希瓦氏菌和假單胞菌為貨架期終點(diǎn)的優(yōu)勢腐敗菌。2選取不同菌屬中的典型代表菌株29株,測定其在30。C條件下的生長曲線,不同菌屬之間的生長參數(shù)存在差異,多數(shù)菌株的延滯期在26H左右,在620H內(nèi)生長迅速,在3035H左右進(jìn)入穩(wěn)定期,選取30℃條件下比生長速率存在明顯差異的不同種屬的耐冷菌13株,測定其在5“C條件下的生長曲線,在低溫條件下,細(xì)菌生長較高溫條件下慢,延滯期更長,225H左右進(jìn)入穩(wěn)定期,且高溫條件下比生長速率大的菌株在低溫條件培養(yǎng)時(shí),其比生長速率也大。3采用125G/L的雙氧水魚塊殺菌兩分鐘后,用濃度為106CFU/L的單一菌懸液進(jìn)行模擬污染,測定貯藏過程中魚塊的感官變化、細(xì)菌總數(shù)、TVBN值以及PH值等指標(biāo),接種腐敗希瓦氏菌和假單胞菌的無菌魚塊在冷藏過程中在48H左右魚肉達(dá)到高品質(zhì)期終點(diǎn),開始出現(xiàn)異味,魚肉組織疏松,彈性下降,96H到120H時(shí)魚肉開始變綠,臭味明顯。冷藏初期,PH有所下降,隨著魚肉中蛋白質(zhì)分解,并釋放出堿性物質(zhì)如胺類物質(zhì),PH值開始上升。希瓦氏菌和假單胞菌的最大比生長速率較其他菌株要大,分別為0065HI和高祥英淡水魚中耐冷菌菌群分析與特征腐敗菌生物學(xué)特性研究舢S慨TIL惻㈣糟THEPROTEINCONTENTOFFRESHWATERFISHISHIGH,SOAFTERTHEDEATH,SPOILAGEPROCESSHAPPENSRAPIDLY;MICROORGANISMISTHEMAINFACTOROFSPOILAGEFRESHWATERFISHGILLS,BODYSURFACE,ANDINTESTINALCANALCARRYALARGENUMBEROFBACTERIA,WHICHCANEASILYLEADTOSPOILAGEOFFISHAFTERDEATHFISHESMAYBECARRYINGDIFFERENTBACTERIA,BECAUSETHELIVINGWATERS,F(xiàn)ISHINGSEASONSANDFISHSPECIESAREDIFFERENTTHEREFORE,INTHISPAPERWECOLLECTEDDIFFERENTKINDSOFFRESHWATERFISHSAMPLESFROMDIFFERENTREGIONSANDANALYZEDTHEBACTERIAFLORAANDTHECHANGEOFMICROFLORADURINGSTORAGEATLOWTEMPERATURETHEGROWTHPARAMETERSBETWEENDIFFERENTSTRAINSANDSPOILAGECHARACTERISTICSALSOWERESTUDIEDINTHEPROCESSOFSPOILAGE,WHICHPROVIDETHEORETICALBASISONTHEINHIBITIONOFSPOILAGEBACTERIAINFRESHWATERFISHESDURINGCOLDSTORAGETHEMAINRESEARCHMETHODSANDRESULTSAREASFOLLOWS1THESAMPLESGRASSCARP,BIGHEAD,ANDCRUCIANCARPWERECOLLECTEDFROMHUNANYUEYANGANDJIANGSUYANGZHOU143STRAINSOFCOLDRESISTANTBACTERIAWEREISOLATED,83STRAINSOFWHICHWEREISOLATEDFROMSAMPLESOFHUNANYUEYANG,ANDTHEREST60STRAINSWEREISOLATEDFROMJIANGSUYANGZHOUSAMPLESRESULTSOFGRAMSTAININGSHOWEDTHAT121STRAINSWEREG。,ACCOUNTINGFOR846%,BACTERIALSHAPESWERESPHERICAL,RODSHAPEDANDBALLRODETA1BYMORPHOLOGICALOBSERVATION,PHYSIOLOGICALANDBIOCHEMICALANALYSIS,REPPCRFINGERPRINTINGAND16SRDNASEQUENCINGIDENTIFICATION,WEFOUNDTHAT143COLDRESISTANTISOLATESWEREDIVIDEDINTOSEVENGENERA,NAMELYFLAVOBACTERIUM,SHEWANELLA,ACINETOBACTER,AEROMONAS,PSYCHROBACTER,PSEUDOMONASANDCOMAMONASAMONGTHEM,SHEWANELLASTRAINSWERETHEMOST,INCLUDING66STRAINS,ACCOUNTEDFOR3625%INSAMPLESOFHUNANYUEYANG,F(xiàn)OLLOWEDBYACINETOBACTERANDPSEUDOMONAS,ACCOUNTEDFOR25%AND1375%RESPECTIVELY;JIANGSUYANGZHOUSAMPLESCONTAINED5873HIGHPERCENTOFSHEWANELLASTRAINS,F(xiàn)OLLOWEDBYFLAVOBACTERIUM,ACCOUNTINGFOR2381%OFTHEISOLATEDBACTERIAWESTUDIEDFLORACHANGESONTHREESPECIESOFFRESHWATERFISHINTHEPROCESSOFCOLDSTORAGE,ANDFOUNDTHESHEWANEILAANDPSEUDOMONASWASTHEDOMINANTSPOILAGEBACTERIAATTHEENDOFSHELFLIFE229TYPICALREPRESENTATIVESTRAINSOFDIFFERENTSPECIESWERESELECTEDTOMEASUREGROWTHCURVEUNDERTHECONDITIONOF30。C,THEREWEREDIFFERENCESINGROWTHPARAMETERSBETWEENDIFFERENTGENERA,THELAGPHASEOFMOSTSTRAINSWEREIN26H,ANDGREWRAPIDLYIN620H,WENTINTOTHESTABLEPHASEATAROUND3035HTHEN13STRAINSOFPSYCHROTOLERANTS,WHICHWEREOBVIOUS
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上傳時(shí)間:2024-03-02
頁數(shù): 87
大?。?10.05(MB)
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簡介:東北林業(yè)大學(xué)博士學(xué)位論文長白山區(qū)松口蘑種群生物學(xué)特征及其開發(fā)利用姓名全雪麗申請學(xué)位級別博士專業(yè)植物學(xué)指導(dǎo)教師吳基日20061201ABSTRACTNEWPRODUCTIONAREAOFZMATSUTAKEINQINGBEIOFJIAOHE,SONGIIANGTOWNSANDFORESTRYCENTREOFHAIQINGAROUNDSONGHUALAKE,ANDINLIAONINGFENGCHENGWASFOUNDTHROU曲INVESTIGATINGTHEDISTRIBUTIONANDENTIRONMENTOFTRICHOLOMAMATSUTAKEINCHANGBAIMOUNTAINTHERESULTOFINVESTIGATION,CLASSIFICATIONANDRECORDATIONINDICTEDEXISTENCEOFTRICHOLOMABAKAMATSUTAKEINCHANGBAIMOUNTAINWHICHWASAALLIEDSPECIESOFZMATSUTAKEWASAPPROVED,ANDITSMAINGROWTHAREAWASFOUNDINSHIMEN,LIANGBINGANDFUXINGOFANTUCOUNTY,ALSOINLONGIING,SHANHEANDZHIXIN,MOREOVER,THEGROWTHOFTRICHOLOMABAKAMATSUTAKEWASEARLIERTENDAYSTHANZMATSUTAKETHESTUDYOFTISSUEISOLATIONINZMATSUMKEWASCARRIEDOUT,THERESULTSHOWEDTHATTHE1AMELIAWASOPTIMALFORTISSUEISOLATIONAND100%OFSURVIVALRATEWASOBSERVEDFURTHERMORETHEMEDIUMOFHAWTHORNEXTRACTINGOFBRANCOMBINEDORIGINALMYCELIUMOFJEW’SEARWASCONSIDEREDTOBEAOPTIMUMCULTUREMEDIUMFORZBAKAMATSUMKE,LAMELLAWASOPTIMALISOLATIONPARTALSO,ANDTHESURVIVALRATEACHIEVED50%WHILEOTHERPARTSWERE1050%ONLYTHEMEDIUMOFCHINESEGOOSEBEERYEXTRACTINGOFBRANCOMBINEDORIGINALMYCELIUMOFJEW’SEARWASSUITABLEFORGROWTHOFMYCELIUMINZMATSUMKEOFCHARLGBAIMOUNTAINANDKUNMING,BUTFORZBAKAMATSUTAKEOFCHANGBAIMOUNTAIN,THEMEDIUMOFCHINESEGOOSEBEERYEXTRACTINGOFBRANCOMBINEDORIGINALMYCELIUMOFJEW’SEARHAWTHORNEXTRACTINGOFBRANCOMBINEDORIGINALMYCELIUMOFJEW’SEARANDPINEAPPLEEXTRACTINGOFBRANCOMBINEDORIGINALMYCELIUMOFJEW’SEARWASFAVORABLEINTHISSTUDYANATOMICALCHARACTERISTICOFFRUITBODIEINZMATSUTAKESPECIESOFCHANGBAIMOUNTAINWASOBSERVED,MYCELIUMOFLAMELLAETRAMAIN71MATSUTAKEWASARRANGEDONBOTHSIDES,ANDZBAKAMATSUTAKESBELONGEDTOTHENEARREGULARORREGULARSHAPEINADDITION,THEREWAS’NOSIGNIFICANTDIFFERENCEINMICROSTRUCTUREAMONGZMATSUTAKEFROMDIFFERENTGEOGRAPHICALORIGIN,THEYWERECOMPOSEDBYFILIFORMHAPHAWITHSEPTUM,ANDHADNOTCOMBINATIONOFLOCKSHAPETHENU砸ENTCOMPONENTOFFRUITBODIESINZMATSUTAKEANDZBAKAMATSUTAKEWASDETERMINED,THERESULTSHOWEDTHATTHEREWASNOTOBVIOUSDIFFERENCEINNUTRIENTCOMPONENTBETWEENZMATSUTAKEANDZBAKAMATSUTAKEEXCEPTCRUDEPROTEINCONTENTOFZBAKAMATSUTAKEWASHIGHERTHANZMATSUTAKEBOTHOFZMATSUTAKEANDZBAKAMATSUTAKEHADTHEESSENTIALCONTENTSOFMINERALELEMENTSSUCHASKCA,NA,MGCU,F(xiàn)E,ZNANDMNFORZBAKAMATSUTAKE,ITHADHIGHERCONTENTSOFMINERALELEMENTSTHANZMATSUTAKEEEXCEPTFEMOREOVERTHEREWASNODISTINCTDIFFERENCEINVITAMINEBLANDVITAMINEB2BETWEENZMATSUTAKEANDZBAKAMATSUTAKⅡ
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上傳時(shí)間:2024-03-03
頁數(shù): 80
大?。?3.34(MB)
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簡介:SOILFERTILITYQUALITYEVALUATIONOFCAMELLIAOLEIFERAFORESTINSANDYANDREDSOILAREABYCHENDONGATHESISSUBMITTEDINPARTIALFULFILLMENTOFTHEREQUIREMENTSFORTHEDEGREEOFMASTEROFAGRONOMYSUPERVISORPROFESSORWULICHAOCENTRALSOUTHUNIVERSITYOFFORESTRYANDTECHNOLOGY498SHAOSHANSOUTHROAD,TIANXINDISTRICTCHANGSHAHUNAN410004,RRCHINAMAY2015摘要油茶CAMELLIAOLEIFERA是我國重要的特色木本油料樹種。國務(wù)院于2009年批準(zhǔn)實(shí)施了全國油茶產(chǎn)業(yè)發(fā)展規(guī)劃,計(jì)劃到2020年油茶種植總規(guī)模達(dá)到7000萬畝,茶油產(chǎn)量達(dá)到每年250萬噸。國家大規(guī)模發(fā)展油茶的發(fā)展戰(zhàn)略要求因地制宜,做好油茶林土壤肥力質(zhì)量評價(jià)工作,以期為建立油茶測土配方施肥體系,乃至油茶專用肥的研制提供科學(xué)依據(jù)。本研究擬對湘中板頁巖紅壤地區(qū)不同產(chǎn)量油茶林土壤肥力質(zhì)量進(jìn)行評價(jià),探討不同經(jīng)營水平油茶林土壤理化,以及生物學(xué)特征,以期為全面開展油茶林測土配方施肥提供依據(jù)。本文以我國油茶之都湖南省邵陽縣典型的湘中板頁巖紅壤區(qū)盛果期油茶林為試驗(yàn)對象,建立固定標(biāo)準(zhǔn)地11個,測定根際土和非根際土的16個理化性質(zhì)和13個生物學(xué)特性指標(biāo),并探討土壤理化性質(zhì)、生物學(xué)特性、產(chǎn)量三者之間的關(guān)系,篩選出評價(jià)湘中板頁巖紅壤區(qū)油茶林土壤肥力質(zhì)量的最小數(shù)據(jù)集,并分別采用主成分分析法和因子分析法對湘中板頁巖紅壤區(qū)油茶林土壤肥力質(zhì)量進(jìn)行了評價(jià)。主要研究結(jié)果如下1湘中板頁巖紅壤區(qū)油茶林土壤有機(jī)質(zhì)、有效P、速效K、有效CA、有效MG、有效S、有效CU、CEC、微生物生物量C、微生物生物量N、微生物生物量P的含量等隨著產(chǎn)量的增加而增大。2有效ZN含量和有效B含量等隨著產(chǎn)量的增加而增大,且有效B含量與產(chǎn)量顯著相關(guān)。高產(chǎn)油茶林土壤有效ZN含量為312MGKG~,比中產(chǎn)、低產(chǎn)分別高676%和453%;高產(chǎn)油茶林土壤有效B含量為092MG/KG,比中產(chǎn)、低產(chǎn)分別高249%和653%。3油茶林根際土土壤有機(jī)質(zhì)含量、有效B含量、有效ZN含量極顯著高于非根際土P001,而有效P、速效K、有效S含量顯著高于非根際土P005。4油茶林土壤微生物生物量P的含量以及酸性磷酸酶、中性磷酸酶、總磷酸酶、脲酶的活性與油茶產(chǎn)量極顯著相關(guān),過氧化氫酶的活性與油茶產(chǎn)量顯著相關(guān)。而蔗糖酶活性和堿性磷酸酶活性與產(chǎn)量的相關(guān)性均不顯著。與產(chǎn)量相關(guān)性最高的磷酸酶活性指標(biāo)是總磷酸酶活性PO875,其次為酸性磷酸酶活性
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上傳時(shí)間:2024-03-02
頁數(shù): 71
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