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簡(jiǎn)介:摘要乙烯是調(diào)控植物生長(zhǎng)發(fā)育的一種重要激素,植物內(nèi)源乙烯的生物合成、信號(hào)轉(zhuǎn)導(dǎo)和生物效應(yīng)的調(diào)控研究一直是一個(gè)熱門課題?,F(xiàn)在乙烯生物合成的途徑已經(jīng)闡明,而乙烯信號(hào)轉(zhuǎn)導(dǎo)的研究則方興未艾,目前主要集中在模式植物擬南芥上。但擬南芥無(wú)法作為呼吸躍變型果實(shí)的成熟模型。本文在克隆番茄乙烯受體基因LEETRI和LEETR2部分特異序列,將LEETRI和LEETR2部分特異序列反向?qū)敕阎仓?,獲得這兩個(gè)受體基因表達(dá)受到抑制的轉(zhuǎn)基因番茄植株的基礎(chǔ)上,從T1代轉(zhuǎn)基因植株中篩選轉(zhuǎn)基因純合株系,研究了LEETRL和LEETR2的表達(dá)水平降低以后植株?duì)I養(yǎng)生長(zhǎng)、形態(tài)建成、乙烯生理以及果實(shí)成熟特性與野生型番茄的差異。主要結(jié)果如下1、根據(jù)NPTII基因?qū)敲顾氐目剐?,我們采用卡那霉素篩選轉(zhuǎn)基因番茄T1植株獲得了理想的結(jié)果。我們對(duì)T1代番茄幼苗的根進(jìn)行了GUS染色檢測(cè)。結(jié)果表明在檢測(cè)的T1代番茄幼苗中,陽(yáng)性率為73.5%,染色組織呈深藍(lán)色,而陰性對(duì)照則不染色,但不同陽(yáng)性植株根部GUS染色后的表現(xiàn)則有所不同,有的植株整個(gè)組織都呈藍(lán)色,而有的植株只在根的部分區(qū)域呈藍(lán)色斑點(diǎn)。2、根據(jù)NPT.II基因和轉(zhuǎn)入反義基因的序列設(shè)計(jì)引物,利用PCR的方法從T1代番茄中篩選出陽(yáng)性植株;研究了GUS基因在T1代花粉中的表達(dá)規(guī)律。結(jié)果發(fā)現(xiàn)純合植株番茄的花粉在37℃下培養(yǎng)染色5H后GUS基因全都表達(dá),雜合體番茄植株表達(dá)了GUS基因和非表達(dá)的比例為11,對(duì)照植株的花粉無(wú)論在37℃培養(yǎng)5H還是10H都不表達(dá)GUS基因。與PCR檢測(cè)結(jié)果相互印證,證明這個(gè)方法能夠快速、可靠地從T1植株中篩選出純合株系。3、以LEETRL和LEETR2CDNA為探針,研究了轉(zhuǎn)基因番茄植株和野生型番茄植株中LEETRL和LEETR2兩個(gè)受體基因的表達(dá)水平。結(jié)果表明,轉(zhuǎn)反義LEETRL番茄植株,LEETRL基因的表達(dá)水平與野生型番茄相比,受到了顯著的抑制;LEETR2基因的表達(dá)也受到一定的影響;轉(zhuǎn)反義LEETR2基因的番茄,LEETR2基因的表達(dá)明顯減弱;而LEETRL基因的表達(dá)基本不受影響。4、對(duì)轉(zhuǎn)基因番茄和野生型番茄幼苗的三重反應(yīng)研究表明,在『F??諝鈼l件F,LEETR2反義轉(zhuǎn)基因番茄幼苗的苗高和根的長(zhǎng)度低于野生型植株,表現(xiàn)出一種不完全的乙烯組成性反應(yīng)。在乙烯誘導(dǎo)的條件下,轉(zhuǎn)基因LEETR2番茄幼苗VIABSTRACTTHEOHYTOHORMONEETHYLENEREGULATESMANYASPECTSOFPLANTGROWTH,DEVELOPMENT,ANDENVIIONMENTALRESPONSES.ITSVERYIMPORTTOSTUDYTHEBIOSYNTHESISOFENDOGENESISOFETHYLENEANDETHYLENESIGNALINGPATHWAY.OURKNOWLEDGEONTHEREGULATIONOFETHYLENESYNTHESISDURINGDEVELOPMENTOFTOMATOISQUITEADVANCED.MUCHLESSISKNOWNABOUTTHEREGULATIONOFETHYLENEPERCEPTIONANDTRANSDUCTION.ALTHOUGHARABIDOPSISISCLEARLYTHEIDEALMODELFORANALYSISOFETHYLENESIGNALTRANSDUCTION,ITCANNOTBETHEMODELOFCHOICEFORCLIMATICFRUITSBASEDONCLONINGOFTHEPARTIALDNASEQUENCESOFLEETRLANDLEETR2,WETRANSFORMEDTOMATOESWITHANTISENSELEETRL,2.STUDYINGTHEPHENOTYPEOFTHETRANSGENICPLANTSWILLHELPINUNDERSTANDINGTHEPHYSIOLOGICALFUNCTIONOFTHERECEPTORGENELEETRL2INTOMATOETHYLENESIGNALTRANSDUCTIONSYSTEM.THEMAINRESULTSINTHISPAPERAREASFOLLOWS1.ASIMPLYANDQUICKLYMETHODFORMSCREENINGPOSITIVEPLANTSFROMAGREATNUMBEROFTRANSGENICTOMATOESWASDEVELOPEDBASEDONTHEEXAMINATIONOFGUSGENEEXPRESSIONINROOTS.2.PURETRANSGENICTOMATOLINESWEREIDENTIFIEDBYEXAMININGGUSEXPRESSIONINPOLLENS.HOMOZYGOUSLINESHOWEDALLPOLLENSEXPRESSEDGUSANDPRODUCEDBLUECOLORWHENINCUBATEDAT37℃FOR5H.HETEROZYGOUSLINESHOWEDTHESEGREGATIONRATIOOF11.CONTROLSPLANTSHADNOGUSEXPRESSIONINPOLLENSANDPOLLENTUBESINCUBATEDAT37℃FOR5HAND10H.3.NORTHERNBLOTANALYSISINDICATEDTHATLEETRLANDLEETR2MRNAABUNDANCEWASDECREASEDINANTISENSETOMATOPLANTS.4.SEEDLINGSOFBOTHANTISENSELEETR2TRANSGENICANDWILDTYPEPLANTSEXPOSEDTOETHYLENEDISPLAYEDTHENORMALTRIPLERESPONSE,HOWEVER,ROOTELONGATIONWASSTRONGLYINHIBITEDBYETHYLENE,ANDROOTHAIRFORMATIONWASCOMPLETELYINHIBITEDINTRANSGENICPLANTS.INTHEABSENCEOFETHYLENE,HYPOCOTYLANDROOTLENGTHSOFTHETRANSGENICSEEDLINGSWERESIGNIFICANTLYSHORTERTHANTHATOFWILDTYPE,SUGGESTINGAWEAKCONSTITUTIVEETHYLENERESPONSEINSEEDLINGSOFANTISENSELEETR2TOMATO.5.WHENEXPOSEDTO25U1/1ETHYLENELEAVESOF、WSHOWEDMUCHSTRONGEREPINASTYTHANTHATOFANTISENSELEETR2PLANTS.WEARRIVEDACONCLUSIONTHATTRANSGENICPLANTSWERELESSSENSITIVETOETHYLENETHANⅥ呵PLANTS.6TOASSESSTHESENSITIVITYOFABSCISSIONTISSUETOETHYLENE,PETIOLEEXPLANTSPREPAREDFROMTRANSGENICLINESANDⅥ叮WEREEXPOSEDTO25U1/1ETHYLENEFOR6D.THETIMENEEDEDFOR50%ABSCISSIONBYTRANSGENIC旺EETR2EXPLANTSWEREMORETHANTWICETHETIMENEEDEDBYWILDTYPE.ASIMILAREXPERIMENTWASPERFORMEDWITHFLOWERPETIOLEEXPLANTS.THEDELAYINFLOWERABSCISSIONCLOSELYPARALLELEDTHERESULTSFORPETIOLEABSCISSIONACCORDINGTOTHENEGATIVEREGULATIONMODEL,DECREASEDLEETR2MRNAABUNDANCESHOULDLEADTOACCELERATEDABSCISSION.WETHUSINFERTHATTHEACTIONOFETHYLENERECEPTORSDOESNOTALWAYSCOMPLYWITHNEGATIVEREGULATIONMODEL.VILL
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簡(jiǎn)介:中南林學(xué)院博士學(xué)位論文板栗生物多樣性和生理學(xué)特性研究姓名陳建華申請(qǐng)學(xué)位級(jí)別博士專業(yè)森林培育指導(dǎo)教師謝碧霞何方20041001板栗的生物多樣性和生理學(xué)特性研究縮略詞所略符號(hào)英文名中文名6.BANAA2.4一DIBAPVPACVCMSWPMPODPPOSODC√蛆’PALRPMDHFWLML6BENZYLAMINOPURINENAPHATHALENEACETICACID2,4DICHLOROPHENOXYACETIC3INDOLEBUTYRICACID6.芐基腺嘌呤萘乙酸2,4.二氯苯氧乙酸3.吲哚丁酸POLYVINYLPYRROLIDONE聚乙烯毗咯烷酮ACTIVATEDCARBONVITAMINCMURASHIGET.ANDSKOOGF活性炭抗壞血酸MS培養(yǎng)基WOODYPLANTMEDIUMWPM培養(yǎng)基PEROXIDASEPOLYPHENOLOXIDASESUPEROXIDASEDISMUTASECATLASE過(guò)氧化物酶多酚氧化酶超氧化物歧化酶過(guò)氧化氫酶PHENYLALANINEAMMONIALYASE苯丙氨酸裂解酶REVOLUTIONSPERMINUTEDAVHOLU“FRESHWEIGHLITERMILLILITER每分鐘轉(zhuǎn)速天小時(shí)鮮重升毫升GGRAM克12
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簡(jiǎn)介:安徽農(nóng)業(yè)大學(xué)碩士學(xué)位論文灰葡萄孢對(duì)速克靈抗性遺傳及病理生理學(xué)的研究姓名陳琪申請(qǐng)學(xué)位級(jí)別碩士專業(yè)植物病理學(xué)指導(dǎo)教師丁克堅(jiān)高智謀20040601勢(shì)。從這一意義上來(lái)說(shuō),灰葡萄孢對(duì)寄主植物的致病力的確存在明顯分化。本文從草莓發(fā)病葉片中獲得了灰葡萄孢的致病酶纖維素酶CX和B葡萄糖苷酶與果膠酶PMG。在不同灰葡萄孢侵入同種草莓葉片后,產(chǎn)生的CX與B葡萄糖苷酶酶活性均隨著培養(yǎng)天數(shù)的增加麗升高,而對(duì)照的健康葉片在培養(yǎng)期間并沒(méi)有明顯變化,但不同菌株產(chǎn)生的纖維素酶活力有明顯差異,強(qiáng)致病力的菌株產(chǎn)生的酶活力高,而侵染速率慢的菌株產(chǎn)生的纖維素酶活力較低。培養(yǎng)1015D的灰葡萄孢均可測(cè)出果膠酶活性,酶活性差異不顯著。接種草莓葉片后,果膠酶活性迅速升高,在第四天左右達(dá)到最大值,隨后下降,而對(duì)照的變化并不明顯。通過(guò)以上分析,可以認(rèn)為灰葡萄孢的致病作用與致病酶有一定的相關(guān)性。測(cè)定的致病酶中,以PMG活性為最高,其次是B一葡萄糖苷酶,CX最少。由此可知,在病原菌致病過(guò)程中,主要是PMG起作用。3灰葡萄孢誘導(dǎo)草莓抗病性的生理生化機(jī)制本實(shí)驗(yàn)結(jié)果表明灰葡萄孢侵染草莓后PPO和POD活性明顯提高,活性的變化量與感病程度有顯著的正相關(guān)。不同菌株侵染草莓葉片后誘導(dǎo)PPO和POD酶活性變化有顯著差異,不同寄主來(lái)源的敏感菌株中FXL誘導(dǎo)產(chǎn)生的酶活性最強(qiáng),并且酶活力增長(zhǎng)的速率與病斑擴(kuò)展的速率正相關(guān)。寄主來(lái)源是草莓的CFL侵染草莓葉片的發(fā)病速率反而比較慢,CFL的抗速克靈誘導(dǎo)菌株CFI1和CFL2雖然病斑面積與擴(kuò)展速率和親本菌株差異不大,但誘導(dǎo)產(chǎn)生的防御酶活力卻遠(yuǎn)遠(yuǎn)強(qiáng)于親本菌株。草莓接種后1~3天之間PAL活性顯著高于對(duì)照,至第四天起活性逐漸下降。在灰葡萄孢感染番茄過(guò)程中,從感染部位到未感染區(qū)域病斑處和病斑周圍植物組織的防御反應(yīng),導(dǎo)致PAL酶活性的增強(qiáng)。草莓接種后14天之間SOD活性明顯升高,在灰葡萄孢感染草莓過(guò)程中,從感染部位到未感染區(qū)域的邊緣,SOD活眭有一個(gè)明顯的下降梯度。本實(shí)驗(yàn)測(cè)試了不同灰葡萄孢接種草莓葉片后過(guò)氧化物酶同工酶POD,多酚氧化酶同工酶PPO,超氧化物岐化酶同工酶S0D酶譜,從酶譜中可以看出,接種灰葡萄孢后三種酶的同工酶都有明顯變化,并且不同寄主來(lái)源的灰葡萄孢株接種草莓后產(chǎn)生的同工酶譜帶在數(shù)目和顏色上都存在差異,其中以過(guò)氧化物酶同工酶POD的差異最為明顯,而超氧化物岐化酶同工酶SOD的差異最小。對(duì)同一品種而言,強(qiáng)致病力的菌株誘導(dǎo)產(chǎn)生的酶帶顏色較深,帶寬更明顯。但酶帶數(shù)目并不比弱致病力的菌株多。對(duì)親本菌株和誘導(dǎo)抗藥性菌株進(jìn)行分析可以發(fā)現(xiàn),抗藥性菌株大多數(shù)酶帶的數(shù)目與位置與親本相比沒(méi)有多少變化,只是酶帶顏色更強(qiáng),對(duì)于SOD同工酶來(lái)說(shuō)。其酶帶亮度更高。由于誘導(dǎo)抗藥性菌株的病斑面積和侵染速率均大于其親本菌株,因此,可將同工酶酶帶的強(qiáng)度作為鑒別菌株致病力強(qiáng)弱的生化指標(biāo)之一。4酯酶同工酶譜及聚類分析本實(shí)驗(yàn)測(cè)得的酯酶同工酶酶譜表明,酯酶在菌株中的含量較高,酶譜顯色較好,
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簡(jiǎn)介:西南農(nóng)業(yè)大學(xué)碩士學(xué)位論文甘藍(lán)葉片對(duì)低溫的生理生化響應(yīng)及分子生理學(xué)初探姓名吳峻巖申請(qǐng)學(xué)位級(jí)別碩士專業(yè)生物化學(xué)與分子生物學(xué)指導(dǎo)教師朱利泉吳能表20040501西南農(nóng)業(yè)大學(xué)碩士學(xué)位論文摘要旦旦旦絲旦里里照旦旦里里巴口口的1479倍,然后開始下降,在處理30MIN時(shí)又有一定上升。可溶性糖含量在5MIN時(shí)達(dá)到第一個(gè)峰值,為對(duì)照的12500MIN時(shí)迅速下降,為對(duì)照的9268,而20MIN后逐漸上升,在30MIN達(dá)到對(duì)照的13452??扇苄缘鞍踪|(zhì)含量開始時(shí)迅速上升,在5MIN時(shí)達(dá)到對(duì)照的2倍,隨后迅速下降在15MIN達(dá)到波谷,但仍然是對(duì)照的136倍,遠(yuǎn)遠(yuǎn)高于對(duì)照,隨后開始持續(xù)上升。脫落酸含量變化規(guī)律與前面的指標(biāo)基本一致。但是它的第一個(gè)峰值出現(xiàn)在3MIN,為對(duì)照的15514早于上述各指標(biāo)峰值出現(xiàn)時(shí)間。蛋白激酶活性也是出現(xiàn)在低溫處理3而N時(shí),比對(duì)照高出I倍,5MIN時(shí)又有較大幅度的下降但仍高于對(duì)照,隨后又上升,15MIN時(shí)達(dá)到第二峰值,隨后開始下降,30MIN又有較大上升。植物低溫處理后AB人含量迅速升高,從而引發(fā)一系列的體內(nèi)反應(yīng),提高甘藍(lán)的低溫適應(yīng)能力,而蛋白質(zhì)磷酸化過(guò)程也可能參與了ABA的生物合成本研究還發(fā)現(xiàn)低溫脅迫顯著提高蛋白激酶的活性,該激酶對(duì)鈣調(diào)素CA城沒(méi)有依賴性,EGTA使蛋白激酶活性降低,外加鈣離子對(duì)蛋白激酶活性有明顯影響,并且以LMMOL口為最佳濃度,鎂離子和錳離子能夠在一定程度上激活該蛋白激酶,可見該種蛋白激酶可能是一種CDPK。通過(guò)電泳和放射性標(biāo)記發(fā)現(xiàn)低溫脅迫導(dǎo)致甘藍(lán)葉片內(nèi)迅速出現(xiàn)一種分子量為229KD的磷酸化蛋白質(zhì),這說(shuō)明甘藍(lán)在低溫脅迫條件下的信號(hào)傳導(dǎo)過(guò)程仍然依賴于磷酸似去磷酸化過(guò)程,這種磷酸化蛋白非常有可能是該信號(hào)傳遞過(guò)程中的關(guān)鍵物質(zhì)。對(duì)于可溶性蛋白組分的分析發(fā)現(xiàn),低溫脅迫60MIN后甘藍(lán)葉片中出現(xiàn)了分子量分別為1242KD和749KD的兩種蛋白質(zhì),顯而易見,這兩種蛋白是機(jī)體為了適應(yīng)低溫,而出現(xiàn)的低溫誘導(dǎo)蛋白。研究還表明,隨著時(shí)間的延長(zhǎng),60MIN時(shí)出現(xiàn)了特異蛋白,說(shuō)明低溫信號(hào)傳導(dǎo)基本完成,在此信號(hào)傳導(dǎo)過(guò)程中060MIN是關(guān)鍵。關(guān)鍵詞甘藍(lán)低溫生理生化響應(yīng)
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簡(jiǎn)介:揚(yáng)州大學(xué)碩士學(xué)位論文模擬CR(Ⅵ)離子污水灌溉條件下水稻土微生物生態(tài)特征及生理學(xué)指標(biāo)的研究姓名康貽軍申請(qǐng)學(xué)位級(jí)別碩士專業(yè)植物營(yíng)養(yǎng)學(xué)指導(dǎo)教師胡健20060601揚(yáng)州大學(xué)碩士學(xué)位論文,5MICROBIALECOLOGICALCHARACTERISTICSANDBIOLOGICALINDEXESINPADDYSOILSPOLLUTEDBYCRVIIONABSTRACTHEAVYMETALSAREVERYIMPORTANTKINDSOFCONTAMINATIONSINSOIL,SOBUILDINGASYSTEMOFALARMINGANDEVALUATINGFORSOILREPAIRINGISBECOMINGMOREANDMORESCORCHINGINTHESTUDYOFSOILENVIRONMENTHOWEVERPREVENIENTSCHOLARSWERERARELYSTUDIEDTHEILDLUENCEBETWEENPERIODSOFRICEANDINDEXESINTHISPAPERMICROBIALCHARACTERISTICSANDBIOCHEMICALINDICATORSWERESTUDIEDINPADDYSOILSWHICHWERESIMULATIVECONDUCTEDBYDIFFERENTCONCENTRATIONOFCRVTHROUGHSTUDYING,WETRYTOEXPLOREWHATONEARTHINDEXESARETHEMOSTSENSITNE,WHAT’STHERELATIONSHIPBETWEENPERIODSOFRICEANDTHEINDEXES,ANDWHAT’STHEEFFECTOFSIONTHESOILCONTAMINATIONSTHEMAINRESULTSOFTHISSTUDYAREPRESENTED1,THEREWERESIGNIFICANTNEGATIVERELATIONSHIPSAMONGSOILMICROBIALBIOMASSCARBON,MICROBIALBIOMASSNITROGEN,BASALRESPIRATION,UREASEACTIVITY,AMMONIFICATIONACTIVITYANDDENITRATIONACTIVITYANDTHEAVAILABILITYOFCRVI,BYCONTRARIES,THECONTAMINATIVESOILHADAPOSITIVERELATIONSHIPORCLOSEPOSITIVERELATIONSHIPBETWEENSOILMICROBIALBIOMASSC/NANDSOILCATALASEACTIVI母ANDTHEAVAILABILITYOFCRVI2,OBVIOUSDIFFERENCESWEREFOUNDAMONGINDEXES,INTHISPAPERSOILMICROBIALBIOMASSCARBON,MICROBIALBIOMASSNITROGEN,C/NANDUREASEACTIVITYWERETHEMOSTSENSITIVEINDEXES3,THEAMOUNTSOFSOILBACTERIAWEREACTIVATEDBYLOWCONCENTRATIONCRVI,HOWEVERTHEHIGHCONCENTRATIONCRVIPLAYEDTHEADVERSEROLE,THEREWERESIGNIFICANTNEGATIVERELATIONSHIPSAMONGTHEAMOUNTSOFSOILFUNGI,ACTINOMYCETESANDPOTASSIUMSOLUBILIZINGBACTERIA,HOWEVERTHEAMOUNTSOFSOILPHOSPHATESOLUBILIZINGBACTERIAWERESIGNIFICANTINPADDYSOILS4,THESENSITIVEDEGREEOFEACHINDEXWEREDISSIMILARINDIFFERENTPERIODSOFRICE,BUTTHEINDEXESWEREHARDLYDISTURBEDBYHEAVYMETALS
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簡(jiǎn)介:YL}29261竹安廿IJ』X桿措⑧研究生學(xué)位論文花鱸、許氏平魚由運(yùn)動(dòng)生理學(xué)的初步研究研究1二鼎帛井愛(ài)國(guó)指導(dǎo)扛伸抽名、張秀梅中靖阜幢越崩顴士々業(yè)名薦教授捕撈學(xué)餓立}晰日期蘭粵墮生里.恿旦旦阜位授/E抑2005年6月中國(guó)海洋大學(xué)花鱸、許氏平蚰運(yùn)動(dòng)生理學(xué)的初步研究關(guān)鍵詞花鱸許氏平蚰游泳速度乳酸血糖;糖元
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上傳時(shí)間:2024-03-03
頁(yè)數(shù): 81
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簡(jiǎn)介:學(xué)校代碼10264研究生學(xué)號(hào)D010101004上海水產(chǎn)大掌博士掌位論文題目翹嘴紅舶蛋白質(zhì)營(yíng)養(yǎng)生理學(xué)的研究英文題目LTHESTUDYOLLPROTEINNUTRITIONPHYSIOLOGYOFERYTHROCULTERILISHUEFORMIS專業(yè);水產(chǎn)養(yǎng)殖研究方向水產(chǎn)動(dòng)物營(yíng)養(yǎng)與飼料學(xué)姓名;王桂芹指導(dǎo)教師周洪琪教授二00五年再月上海水產(chǎn)大學(xué)博士學(xué)位論文飼料蛋白組尸0.05。肝胰臟淀粉酶活力隨著大豆蛋白替代量的增加而升高,當(dāng)飼料中大豆蛋白對(duì)魚粉蛋白替代量達(dá)N40.5%時(shí),肝胰臟淀粉酶活力顯著高于對(duì)照組P0.05。肝胰臟和腸道的脂肪酶活力不受飼料中豆粕替代魚粉的影響厴O.05。翹嘴紅鮐腸道消化酶顯著高于肝胰臟P0.05。前、中和后腸的蛋白酶、淀
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頁(yè)數(shù): 120
大?。?3.67(MB)
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簡(jiǎn)介:分類號(hào)S667;Q785;Q812密級(jí)Y775044單位代碼10389學(xué)號(hào)1021620福建農(nóng)林大學(xué)碩士學(xué)位論文龍眼體胚發(fā)生過(guò)程中APX的生理學(xué)與分子生物學(xué)研究學(xué)科專業(yè)生物化學(xué)與分子生物學(xué)研究方囪檀物生能與分子生將學(xué)研究生李惠華指導(dǎo)教師賴鐘雄研究員完成時(shí)閩二OO五年四月汞經(jīng)伴鲞、導(dǎo)篩同意爨壘又公瘩早期的正常發(fā)育過(guò)程中有APX的主動(dòng)表達(dá),在一些生物和非生物的脅迫條件下可以不同程度地誘導(dǎo)APX的淡達(dá).此時(shí)APX的表達(dá)處于~個(gè)撥動(dòng)的過(guò)穩(wěn)。3舷眼體胚發(fā)繳過(guò)程中脆漿濺PX基因3’末端序列的間源克隆采用3’RACE的方法,首先在靠近基因的5。的保守區(qū)設(shè)計(jì)了簡(jiǎn)并引物,并結(jié)臺(tái)通用GL物進(jìn)行巢式PCR,結(jié)果得到了L條長(zhǎng)為868BP的特異性穰強(qiáng)豹龍L羹疆譙2敷傷疆緩克隆豹鶼漿塑APX戇部分亭歹LGENBANK主登錄號(hào)為AY831398。結(jié)果表明這個(gè)克隧與GENBANK數(shù)據(jù)庫(kù)中已經(jīng)報(bào)道過(guò)的APX的MRNA序列脊商度的同源性。將克隆片段所編碼的氨基酸序列與NCBI上綴盤質(zhì)保守區(qū)數(shù)據(jù)庫(kù)比對(duì),發(fā)耀克隆片段所編碼的氮基酸序列與APX的縑守區(qū)育攝高酌黼澈{生,磊置每忍種植勃弱APX氨釜酸序剜魄較氌其畜較高的同源性,從而可以確認(rèn)克隆片段為龍眼APX的部分序列,并且包含了保鐸區(qū)的序列。胞漿型APX的EDNA全長(zhǎng)為L(zhǎng)KB多.離基因的CDNA全長(zhǎng)述露200BP,可玨避過(guò)5’RACE避一步獲得該纂因雛EDNA念長(zhǎng)。關(guān)鍵詞;龍眼;體細(xì)胞胚胎;抗壞血酸過(guò)氧化物酶;活性;胞漿型抗壞血酸過(guò)氧化物酶基因;同源克隆
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頁(yè)數(shù): 105
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簡(jiǎn)介:J、伊分類號(hào)UDC958056密級(jí)一單位代碼逝塑幸留靜囊耐~乞譜學(xué)位論文筍用竹的生物學(xué)與生理學(xué)特性研究毛丹000898指導(dǎo)教師姓名一一墮建生塾籃擅曼一主由盎些鹽墊盤莖生全盤堂當(dāng)墊盔堂瞳申請(qǐng)學(xué)位級(jí)別彳科專業(yè)名稱一盎疊墊盎研究方向絲盎鹽墊墊直盟論文答辯日期Q逝生I旦論文提交日期15曼月學(xué)立授予單位和日期主壹盎些歪土墊盤生I主I旦答辯委員會(huì)主席二OO旁年六月碩士論文筍用竹的生物學(xué)與生理學(xué)特性研究ABSTRACTTHEBAMBOOSHOOTSWITHTHEBAMBOOTOOKTHEBAMBOOAKINDSIMILARLYISONEOFIMPORTANTFORESTRESOURCES,ITSBAMBOOSHOOTSNOTONLYNUTRITIONRICHFLAVORTASTYMOREOVERTHEEDIBLEHISTORYISGLORIOUS,DISTINGUISHESBETWEENOTHERUSESBAMBOOSREGARDINGBAMBOOSHOOTSWITHBAMBOOCHARACTERISTICTESEARIILNOTONLYISHELPFULTOTHEBAMBOOSHOOTS、I,ITHBAMBOO。SCULTIVATIONTECHNOLOGYENHANCEMENTMOREOVERPROVIDESTHERATIONALEFORITSBAMBOOSHOOTSPRODUCTIONANDTHEDEVELOPMENTUSESIMULTANEOUSLYALSOISREALIZESTHEFORESTRYSUSTAINABLEDEVELOPMENTFOUNDATIONTHISARTICLESUMMARIZEDDOMESTICANDFOREIGNREGARDINGTHEBAMBOOSHOOTSWITHTHEBAMBOOBIOLOGYANDTHEPHYSIOLOGYCHARACTERISTICRESEARCHPRESENTSITUATIONANDTHEDEVELOPMENTTENDENCY,TAKETHEORYANDSOONBIOLOGY,PHYSIOLOGYECOLOGYANDGENETICSASTHEINSTRUCTIONINVESTIGATIONANDSTUDYCHANGSHAANDTHEZHUZHOUTWOPLACESPARTIALBAMBOOSHOOTSUSESTHEBAMBOOTHEPRESENTSITUATIONINORDERTOSATISFYTOTHEBAMBOOSHOOTSWITHTHEBAMBOOCULTIVATIONANDTHEBAMBOOSHOOTSDEVELOPMENTUSENEEDCHOSE9KINDSTHEFINEBAMBOOSHOOTSWHICHSUITEDHUNANTOGROWTOTAKETHEEXPERIMENTALMATERIALWITHTHEBAMBOOANDIFCONTRASTEDBY6KINDOFNONBAMBOOSHOOTSWITHTHEBAMBOO,F(xiàn)ROMTHEIRSBIOLOGYCHARACTERISTICBAMBOOBODY,BAMBOOSHOOTSTIMECHARACTERISTICANDSOONANDTHEPHYSIOLOGYCHARACTERISTICPHOTOSYNTHESISCHARACTERNITRICACIDRETILMTOORIGINALSTATEENZYMEDRIFTEDAWAYAMINOACIDBETACARROTELEMENTTWOASPECTSCONDUCTSTHERESEARCHMAINLYISTHEMETHODWHICHREALLYSURVEYSTHROUGHTHEOPENCOUNTRYCOMESTHEDIRECTVIEWINGDATARECORDINGCHECKANALYSISTOTHEBIOLOGYCHARACTERISTICRESEARCH;BUTMAINLYTHROUGHOBTAINSTHEDATAREGARDINGTHEPHYSIOLOGYCHARACTERISTICRESEARCHTOTHEPARTIALPHYSIOLOGICALTARGETEXPERIMENTDETERMINATIONWIMTHEMATHEMATICALSTATISTICMETHODANALYSISDISCUSSIONCORRELATIONPHYSIOLOGYCHARACTERISTICANDTHESEASONALVARIATIONANDTHEENVIRONMENTRELATIONS,ANDITSWITHTHENONBAMBOOSHOOTSWITHTHEBAMBOOMUTUALLYRELEVANCE,ANDHASDETERMINEDTHEBAMBOOSHOOTSMAINNUTRITIONINGREDIENTCONTENTMAINRESULTASFOLLOWS1LOOKEDFLORATHECONTOURCHARACTERISTICTHATTHEBAMBOOSHOOTSMOSTLYARETHESINGLEAXLEDISPERSELIVINGWITHTHEBAMBOO,THEBAMBOOPOLERELATIVECOMPARISONSTANDSERECTTHICKBUTTHENONBAMBOOSHOOTSWITILTHEBAMBOOMOSTLYAREGROWINGTHICKLYTHEBAMBOOPOLERELATIVEQUITEISSLENDERⅡ
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簡(jiǎn)介:暨南大學(xué)博士學(xué)位論文題名(中英對(duì)照)鄰苯二甲酸酯高低累積品種菜心的生理學(xué)差異及其分子機(jī)制研究DIFFRENCEBETWEENHIGHLOWPAEACCUMULATIONCULTIVARSOFCHINESEFLOWERINGCABBAGEBRASSICAPARACHINENSISLRESEARCHONTHEMOLECULARMECHANISMS作者姓名趙海明指導(dǎo)教師姓名莫測(cè)輝及學(xué)位、職稱博士教授學(xué)科、專業(yè)名稱理學(xué)、生態(tài)學(xué)學(xué)位類型學(xué)術(shù)學(xué)位論文提交日期2016年4月29日論文答辯日期2016年5月29日答辯委員會(huì)主席論文評(píng)閱人學(xué)位授予單位和日期獨(dú)創(chuàng)性聲明獨(dú)創(chuàng)性聲明本人聲明所呈交的學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作及取得的研究成果。除了文中特別加以標(biāo)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(guò)的研究成果,也不包含為獲得暨南大學(xué)暨南大學(xué)或其他教育機(jī)構(gòu)的學(xué)位或證書而使用過(guò)的材料。與我一同工作的同志對(duì)本研究所做的任何貢獻(xiàn)均已在論文中作了明確的說(shuō)明并表示謝意。學(xué)位論文作者簽名簽字日期年月日學(xué)位論文版權(quán)使用授權(quán)書學(xué)位論文版權(quán)使用授權(quán)書本學(xué)位論文作者完全了解暨南大學(xué)暨南大學(xué)有關(guān)保留、使用學(xué)位論文的規(guī)定,有權(quán)保留并向國(guó)家有關(guān)部門或機(jī)構(gòu)送交論文的復(fù)印件和磁盤,允許論文被查閱和借閱。本人授權(quán)暨南大學(xué)暨南大學(xué)可以將學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫(kù)進(jìn)行檢索,可以采用影印、縮印或掃描等復(fù)制手段保存、匯編學(xué)位論文。(保密的學(xué)位論文在解密后適用本授權(quán)書)學(xué)位論文作者簽名導(dǎo)師簽名簽字日期年月日簽字日期年月日學(xué)位論文作者畢業(yè)后去向工作單位電話通訊地址郵編
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大小: 4.49(MB)
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簡(jiǎn)介:SUMMARYBEANBROADWILTVIRUS2BBWV2ISREPORTEDINMANYRE西ONSOFCHINA,CAUSEDSERIOUSLOSESINECONOMICCROPS.INTHISPAPER,THEULTRASTRUCTURALALTERATIONOFTWOHOSTPLANTSRESPECTIVELYINFECTEDWITHISOLATESOFBBWVWERESYSTEMICALLYSTUDIEDBYTRANSMISSIONELECTRONMICROSCOPEFREM.ANDTHEPHYSIOLOGICALMECHANISMOFRESTRAINEDPHOTOSYNTHESISINDUCEDBYBBWVWASINVESTIGATEDBYPHOTOSYNTHETICANDFLUORESCENTTECHNIQUE.FURTHERMORE,THESYSTEMOFPLANTPROTOPLASTSINVESTEDBVPLCVWASESTABLISHED.1.WI也EL“SYMPTOMSOCCURREDONTHE1EAVESOFVICICAFABAINOCULATEDWITHTHEB935ISOLATE,P158ISOLATEANDPVL31ISOLATEOFBBWV2.THETYPICALMOSAICSYMPTOMSOCCURREDONTHEIEAVESOFCHENOPODIUMQUINOAINOCULATEDWITHTHETHREEISOLATESOFBBWV2ANDLEAVESOFV.FABAINOCULATEDWITHNSRVLISOLATEOFBBⅥⅣ1.UNDERTHETEM.TWOMAINULTRASTRUCTURALCHANGESWEREOBSERVEDINTHETHINSECTIONSOFTHEINFECTEDLEAVESOF礦FABAANDCQUINOA1VIRUSFORILLTUBULARSTRUCTURESINDIAMETERWEREFOTINCDOF17.19VIRUSLIKEPARTICLESINTHELEAVESINFECTEDBYB935,WHILETHISTUBULARSTRUCTURESWEREFORMEDOF9VIRUSLIKEPARTICLESINTHELEAVESINFECTEDBYOTHERISOLATESOFBBWV.SECONG,CHLOROPLASTSWEREDISRUPTEDINTHEINFECTEDCELLSORE丘B(yǎng)ALEAVES.MOSTOFTHEB935.INFECTEDCHLOROPLASTSSHOWEDINHIBITIONOF1AMELLARDEVELOPMENTORMEMBRANEVESICULATIONANDTHEOTHERISOLATESINFECTEDCHLOROPLASTSSHOWEDSWOLLENORDISINTEGRATEDMEMBRANE.2.THEEFFECTSOFBBWV2ISOLATESB935,P158ANDPVL31I11FECTIONONPHOTOSYNTHETICACTIVITIES.FLUORESCENCEEMISSIONSPECTRASAT77KANDCHLOROPLASTULTRASTRUCTUREINHOSTPLANTSWEREINVESTIGATED.ASTHEDISEASEPROGRESSED,NETPHOTOSYNTHETICRATEPN,STOMATALCONDUCTANCEGSOFLEAVES,THECHLOROPHYLLCONTENTANDCHLOROPHYLLA/BRATIODECREASEDWHILETHEINTERCELLULARC02CONCENTRATIONCIOFLEAVESROSEINCOMPARISONWITHTHATOFTHEHEALTHYPLANTS.AFTERBBWV2INFECTION,凡/FM、凡7/FM7、OPSⅡANDQPVALUESALLBECAMELOWER,BUTTHENPQVALUESWEREHI吐ERTHALLTHEHEALTHYCONTR01PLANTS.THEFLUORESCENCEEMISSIONSPECTRASAT77KINDICATEDTHATINFECTEDLEAVESHADHIGHERF686/F734VALUESANDSHIFTEDPEAKSFROMTHOSEOFNORMALONES.111EDATASMAYCONCLUDETHATTHEINFECTIONINHIBITEDMAINLYTHEPSIIACTIVITYANDTHEENERGYDISTRIBUTIONBETWEENPSIIANDPS1WASAFFECTEDATTHESAMETIME.THEVALUCSALSOSHOWEDTHATPVL31INFECTIONCANSEDGREATERCHANGESONTHESCPARAMETERSTHALLTHEOTHERTWOISOLATES.THISDIFIERENCEMAYCANSEDBYTHEIRDIFFERENTNOSOGENSIS.3.CALINSWEREINDUCEDFROMBACCYLEAVESTOACQUIRECELLSCULTUREDINLIQUIDMEDIUM.THELLPROTOPLASTSWEREABMPTEDSEPARATELYFROMTHELEAVESANDTHECALINS.THENBETTERMETHODSTOESTABLISHTHEVIRUS.INFECTEDPROTOPLASTSSYSTEMWEREDISGUST.ONTHEOTHCRHAND,THEMICROTUBULEPATTERNWASREVEALEDBYMEANSOFIMMUNOBLOTTINGINTHEPROTOPLAST.EXIMIOUSMETHODWERECHOSENTODOTHEFI.UTHERINVESTIGATION.KEYWORDSBEANBROADWILTVIRUS,CYTOPATHOLOGY,ULTRASTRUCTURALALTERATION,CHLOROPLAST,PHOTOSYNTHESIS,CHLOROPHYLLFLUORESCENCE,F(xiàn)LUORESCENCEAT77K,PROTOPLAST,MICROTUBULEPATTERN
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簡(jiǎn)介:新疆農(nóng)業(yè)大學(xué)碩士學(xué)位論文天山云杉的自毒作用及其生理學(xué)機(jī)制研究姓名黃閩敏申請(qǐng)學(xué)位級(jí)別碩士專業(yè)森林經(jīng)理學(xué)指導(dǎo)教師潘存德20060601ABS仃ACTPICE日SC仲”尼缸N口ISTHE科LD鋤NICSPECIESINMOUNTAI工LSOFASIA姐DMIDDLEASIAH1CHINA,ITONLYDISMBUTESMX恤洳【NGDIS廿IBUTIⅡGREGIONMA扭1YLIES證NORCH趿LSL郇EDTIANSHANMONNTA證S,ANDASMALLQUANTITYOF尸缸御SC坤N舡口月口DIS廿IBUTE_IILSOUTHEMSLOPEOFTIANSH姐MOUNTAILLSANDNORTHERILSLOPEOFWESTEMPARTOFKUNLUNMOUNTAILLITPLAYSME血DI印E11SABLEVI詛1ROLEINMAINTAININGWATERSOLLRCEOFTIAN曲ANMOUN詛IILSANDCONSERVINGWATER趾DSOILBUTWITHTHEIⅡCREASILLGOFF研ESTPRODUCTI芏1。CON伽ICALCONSTNLC石ONANDⅡLEACCRETIONOFDISTILRBANCEINTENSITYDUETOALLKIN出OFECONOMICALAC廿ONWECALLSEEMATTLLEPROBLEMOFNA時(shí)EREGENERADONHASBECAMEMORESERIOUSDLLRINGF砸ESTNATLLREREGENERA石ON,BASEDONTHISPROBLEM,MANYSNLDIESONH量HT,WATERANDNU仃IEM、,HICHS印LILLGSNEEDHAVEBEEILRESEAFCHEDBUT、WCANSEE丘DM血ERESUITSANDEFRECTSOFSTLLDYTHATITSNLLNEE‘LSA10NGTIMET0SOIVETLLISPROBLEⅡ1THE陀FORE。ON也EBASISOFTLLEHY∞也ESLSOF”也EAUTOTOXIDTVOFPC∞鼯磊R積磚瑾N&RESUL_STONATURALREGEILERATIONF醣1URE”,USINGBIOASSAYINETHOD,T11ISRESEARCHSMDIEDE丘B(yǎng)CTSOFMEDI船RENTCONCELL咖TIONAQUEOUSEX缸丑CTS丘OM也ENEEDLESOFP把陽(yáng)SC陀雄崩K”口ONITSSEEDG眥I11ATIONANDSEEDUNGGROWTHAND血ISRESEARCHWASEXPERIMENTEDONMEPREINISEOFSIIIMLA缸G血ECH啪STANCEOFME只C8口J幽陀N塒口Ⅳ口S∞D(zhuǎn)GENNIILATIONANDSE酣1INGGROWMINTHE枷FICIALCLIM撕CCABINETFHNHEMORE,MECH趾GESOFPLANTENDOG帆OUSLLOMONEWEREMEASUREDUSINGHPLC皿I曲PERF0刪CELIQUIDCHROMAT0掣APHYDU血G廿LEPERIODOF“GSEEDG科MINADONANDSEEDLINGGROWTHTHERESUN3ASFOⅡOWI士19MASPECTOF血EBIOASSAYOFP缸陽(yáng)5曲地腳口N口AUTOTOXICITY,THERESLLLTSSHOWEDMATTLLEAQU∞USEX拄ACTS丘OMTHENEEDLESOFP幻E口印矗理嬲4N4HASAU_OTOX沁IFYO】1SEEDGEⅡNMATLONAND8EED娃N窟靜OWMOFP缸P口SC旭“航刪N1111DER似ODIFF醣NTT唧ERATURECONDIDOILS①PHOTOPERIOD20℃,16H,DARKCYCLE15℃,8H;②THEPHOTOPERIOD15℃,16H,MEDARKCYCLE10℃,8HHBIOASSAY,SEEDGERILLIN撕ONWASS1班NCAN日YDELAYEDUSING10WERCONCEN仃撕0NAQUEOUSEX仃∞TS,ANDSEEDGEIMIILATIONWASSIGNIFICANNYRES仃AINEDUSIILGHIGHERCONCEILTRADONAQUEOUSEXTRACTSAND山EHI曲CRTHECONCEI巾嘶ONWAS,也EMORESI即I丘CALLTMEINHIBITIONWASHLⅡLE僦NP盯AT【LRECONDIDONSOF15~20℃,THESEEDGEMLINATIONWASMARKEDLYINHIBITEDWHEILMECONC髓仃AHONOFAQUEOUSWAS019DWⅡD1,A11DTLLEI11HIB塒ONRATEOFSEEDG嘲INATIONISU口TO313%UNDERTHESAMEEXP耐MEⅡTALCONDITION,TLLESEEDLIILGGROW血W船MARKEDLYINHIBITED,AILDME曲IBITIOⅡRATEOFROOT1ENGCLLANDSHOOT1EⅡGTHWERE44O%蛆D278%RESPECTIVDYWHCN血ECONCEⅡ缸ATIONOFAQUEOUSWAS0052PW抽】~I(xiàn)NTLLET印1PERATILRECONDMONSOF10~15℃,血ESEED2踟血NATIONWASMARKEDLYINLLIB“EDWH∞也ECONCEN仕ATIONOFAQUEOUSW船O0259DWML_L,A11DMEIDHIB試ONRACEOFSEEDG黜INA吐ONISUPTOS57%,UND盯THESAINEEXP舒MENTALCOND城ON,也ESEEDIING窖I講ⅣTBWASMARKEDLYINLLIBITED,ANDT11EIDHIBI廿ONRA地OFSHOOTLEI】GTLLWAS169%WHENTHECOⅡCEN仕ATIONOFAQUEOUSWASO39DWML一BCSIDES,DRYWEIGHTWASACCELENTEDASU血GTHENEEDLESAQUEOUSEXTRACTSITWASMARKEDLYACCDERATEDWHENTLLECONCEN訂ATIONOFAQUEOUSEX廿ACTWAS039DWMRL,ANDWASUPTO236%HASPECTOFME口HYSI010一CALMECHANISMOFPFCED5C陽(yáng)崩口H&AUTOTOXICITY,也ERESULTSUSINGHPLCAILALYSISSHOWOD_IHEGA3ELEVATED徹ARKABLYANDACC啪ULATOD1ARGELYA丘ERTREATMENTBYT11ENEEDLESAND1I牡ERSOFP出口口JC陀“艇DNDAQUEOUSEX婦CTSD11RINGMEPERIODOFI乜SEEDGE衄IILA廿ONA11DSEEMHGGROWMAILDHESYNMESISOFHO瑚ONEIAAWASPROMOTED,血ECOILTENTOFIAAWASENHANCED,AND血EHOMONEBALANCE、VASDES拄OYEDMEANWHILE,THEIAAIILCREASEDWITHMECONCEN仃ADONRI8INGREMAR婦BLYITLEDTOACCUMULATIⅡGOF也ENACONTENT孤DTHEINCREASINGOFACCS如TL】ESIS鋤ZYMEMRNA,血ETRANSFBRMOFTHEADOMETTOACCWASALSOPROMOTED111IS仃秈FONNINDUCEDEFHYLENEBIOSYN血ESISANDINHIBITEDSEEDGEIININATIONANDTHESEEDLINGGROWL王1BESIDES,T11EABAWASACCU舢1ATED1ARGELY、ⅣIMMECONCEN缸ANONRISM2REMARKOBLYANDTHEFUNCNONOF也EHORMONEGALANDIAAWERECOUNTERACTEDFU地EMOR。,ITETHVLENEBIOSVN血ESISWASINDUCEDALLDSEED窖鋤INA仨ONWASIILLLIBITEDITCAILBESEE虹丘OMTLLEABOVERESULTSTHATDES仃OYINGTLLEBALANCEOF朗DOG衄OUSHO越ONEWASONEOF面PORTANTST刪NGMECHALLISMSOF_P把E口5C而,℃N而KNⅡAUTOTOXICIT弭H1ADDITION,血ETEMPERATLLREANDCONCEN廿LTIONHADIⅡTEMC在VEE矗BCTTOSEED窖E皿INA60NANDTHESEEDLIILGGROW血OFP缸84SC脅冒Ⅳ艇口NDANDTLLEENDOGENOUSHO衄ONEKEYWORDSPFC即SC意煳缸口NⅡ,AUTOTOXICITY,SEEDGERHLINATION,SEEDLINGGMWM,ENDOGENOUSHO“NONE
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簡(jiǎn)介:中國(guó)農(nóng)業(yè)大學(xué)博士學(xué)位論文花椰菜幼苗抗黑腐病的生理學(xué)機(jī)制及其抗性的化學(xué)誘導(dǎo)研究姓名吳曉麗申請(qǐng)學(xué)位級(jí)別博士專業(yè)作物栽培與耕作學(xué)指導(dǎo)教師李召虎段留生20060601●ITWOCAULIFLOWERDI虢RENTRESISTANCETOSEEDLINGSTORESISTABSTRACTBRASSICAOLERACEAVATBOTRYTISCULTIVARS‘XUEFENG’AND‘2003X一106’WITHBLACKROTWEREUSEDTOSYSTEMSTUDYPHYSIOLOGICALMECHANISMOFCAULIFLOWERBLACKROTFROMTHEMORPHOLOGYCYTOPHYSIOLOGYPHYTOPHYSIOLOGYANDPHYTOBIOCHEMISTRYLEVELSONTHEBASEMENT,SUSCEPTIBLECULTIVAR2003X一106SEEDLINGSWEREUSEDTOPRIMARILYSTUDYTHERESISTANCETOBLACKROTINDUEDBYMETHYLJASMONATEANDCORONATINETHESPECIFICOBJECTIVEWASTOMAKEABASEMENTFORDEEPSTUDYINGTHETHERESISTANCEMECHANISMTOBLACKROTINDUEDBYMETHYLJASMONATEANDCORONATINEANDTHEAPPLICATIONOFMETHYLJASMONATEANDCORONATINEINTHEAGRICULTURALPRODUCTIONTHEMAINRESULTSOFTHISSTUDYWEREASFOLLOWING1THEPATHOGENXANTHOMONASCAMPESTRISPVCAMPESTRISXCCCAUSEDADECLINEINDRYMATTERACCUMULATIONOFCAULIFLOWERSEEDLINGSSEVENDAYSAFTERINOCULATION,ANDTHERESISTANTCULTIVARXUEFENGDECREASESLIGHTLYSIGNIFICANTLYASCOMPAREDTOTHESUSCEPTIBLECULTIVAR2003X一106THISWASRELATIVETOTHESLOWERDECLINEINTHENETPHOTOSYNTHETICRATE,TRANSPIRATIONRATE,STOMATALCONDUCTANCEANDCHLOROPHYLLCONTENTINXUEFENGSEEDLINGSTHREEDAYSAFTERINOCULATION,F(xiàn)INALLYARESULTOFTHEBALANCESBETWEENTHEPRODUCTIONOFOJANDTHEANTIOXIDANTDEFENSESYSTEMINXUEFENGSEEDLINGS2AFTERTHE4THLEAFINFECTEDWITHTHEPATHOGENXCCTHROUGHLEAFTIPCUT,THEULTRASTRUCTUREOFTHELEAFTISSUEWASOBSERVEDUNDERTRANSMISSIONELECTRONMICROSCOPEDURINGPATHOGENESISTHELAMELLAEOFCHLOROPLASTSANDPLASMAMEMBRANEWEREMORESENSITIVETOTHEPATHOGENANDTHEIRCHANGESWERENOTICEDEARLIERTHEHOSTCELLBECAMEPLASMAOLYZED,CELLWALLSANDCHLOROPLASTSWEREDEFORMED,CHLOROPLASTSLAMELLAEBECAMEDISORDERED,ANDTHEOUTERMEMBRANEOFMITOCHONDRIONDISORGANIZEDEVENVARIOUSORGANELLESOFTHEHOSTCELLSCOLLAPSED,MEMBRANESYSTEMSWEREDISRUPTED,WHICHLEDTOULTIMATEDEATHOFTHEHOSTCELLSTHEDAMAGESONCELLMEMBRANESOFRESISTANTCULTIVARXUEFENGWERELIGHTERANDOCCURREDLATERTHANTHATOFSUSCEPTIBLECULTIVAR2003X一106THEACCUMULATIONOFELECTRONOPAQUEMATERIALNEARBYINNERCELLWALLWASOBSERVEDINXUEFENG,WHEREASCOMPACTGRANULASFORMEDFROMTHEOUTERMEMBRANEOFCHLOROPLASTSANDMITOCHONDRIONSWEREVIEWEDIN2003X一1063AFTERTHEINOCULATIONWITHTHEPATHOGENXCC,CHLOROPLASTSDISRUPTIONINTHECAULIFLOWERSSEEDLINGSINDUCED0JBURST,WHICHACTIVATEDTHELIPIDPEROXIDATIONPOLPATHWAYANDRESULTEDININCREASEDMEMBRANEDAMAGEANDMDAACCUMULATIONTHEPRUDUCTSOFPOLTRIGGEREDPALENZYMETHERESULTSDEMONSTRATEDXUEFENGSHOWEDAHIGHERLEVELOFPALACTIVITY0JGENERATIONRATESANDLOWERCHANGINGRATESOFMDACONTENTANDRELATIVECONDUCTANCERATETHAN2003X一106ATTHESAMETIME,MEJACONTENTOBVIOUSLYINCREASEDINXUEFENG,WHICHINDUCEDTHEPATHOGENRELATEDGENEEXPRESSANDREGULATEDTHEDEFENSESYSTEMINTHEPLANTSITINCLUDEDTHEINDUCTIONOFSODANDPOD,THEINCREASEOFSOLUBLESUGARCONTENTANDTHECHANGESOFSOLUBLEPROTEINTHERESULTSDEMONSTRATEDXUEFENGSHOWEDAHIGHERLEVELOFSODANDPODACTIVITIES,ALESSINCREASEOFSOLUBLESUGARCONTENTANDTHEDECLINEOFSOLUBLEPROTEINCONTENTASTOHORMONESIAAANDMEJACONTENTOBVIOUSLYINCREASEDANDABACONTENTLI
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簡(jiǎn)介:分類號(hào)曼堇鰻UDC碩士學(xué)位論文密級(jí)Y985626乙烯利影響甘蔗莖尖分生組織的細(xì)胞學(xué)與生理學(xué)研究李覃藝學(xué)科專業(yè)佳塑熬墻堂皇越佳堂指導(dǎo)教師奎壺圈』菖4數(shù)援論文答辯日期.2QQ魚生魚旦壘巳.學(xué)位授予日期一答辯委員會(huì)主席魚蕉飛.熬援論文評(píng)閱人遞盜搓硒究旦鎏塑副熬援現(xiàn)出抑制效應(yīng),大莖YT86,368受抑制程度更深一些。三個(gè)甘蔗品種經(jīng)乙烯利處理后,與細(xì)胞生長(zhǎng)相關(guān)的一些代謝酶活性受到影響,從而導(dǎo)致細(xì)胞的活動(dòng)發(fā)生相應(yīng)的交化,最終導(dǎo)致莖尖生長(zhǎng)錐及初生增粗分生組織的生長(zhǎng)均有變化,繼而影響到甘蔗的生長(zhǎng)發(fā)育關(guān)鍵詞甘蔗乙烯利莖尖生長(zhǎng)錐初生增粗分生組織N
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簡(jiǎn)介:Y891二‘5分類號(hào)S435132UDC63L52密級(jí)JF害傷裝學(xué)大垮博士學(xué)位論文轉(zhuǎn)BT基因抗蟲玉米對(duì)亞洲玉米螟的生理與病理學(xué)效應(yīng)盆艷驗(yàn)指導(dǎo)教師姓名王援萱研究繭蟲國(guó)筮業(yè)抖生陸植物證控研究所』£塞漁注區(qū)圓明國(guó)酉踏2呈申請(qǐng)學(xué)位級(jí)別墟土專業(yè)名稱農(nóng)業(yè)昆蟲芻害蟲隨治論文提交閂期2QQ§L5口Q目論文答辯日期2QQ§生§目Q日號(hào)’位授予單位干¨日期沈陽(yáng)盤JK太堂2QQ§生§目28日答辯委員會(huì)主席姬蘭拄班究員評(píng)闌人強(qiáng)I己生教授出明望熬授叢斌數(shù)控王D壹熬接王湛王教授2006年6月12日沈陽(yáng)農(nóng)業(yè)大學(xué)博士學(xué)位論文摘要亞洲玉米螟6BFR加砌丘,NDCD脅GUEN6E是為害玉米的重要害蟲,也是轉(zhuǎn)BTCRYLAB殺蟲蛋白基因抗蟲玉米的主要靶標(biāo)害蟲。自轉(zhuǎn)BT基因抗蟲玉米在美國(guó)商業(yè)化種植以來(lái),已經(jīng)在全球廣泛種植。在我國(guó),國(guó)外公司以及國(guó)產(chǎn)的BT抗蟲玉米也已先后進(jìn)入田間環(huán)境釋放和生產(chǎn)性試驗(yàn)階段,并先后開展了BT玉米生態(tài)安全性評(píng)價(jià)的研究工作,研究BT抗蟲玉米對(duì)啞洲玉米螟的生理和病理效應(yīng),探討B(tài)T玉米商業(yè)化種植后亞洲玉米螟可能對(duì)BT玉米產(chǎn)生的的抗性問(wèn)題的機(jī)理是生態(tài)安全評(píng)價(jià)的重要內(nèi)容。本文系統(tǒng)的研究了表達(dá)CRYLAB殺蟲蛋白的BT抗蟲玉米對(duì)亞洲玉米螟解毒酶、保護(hù)酶和中腸蛋白酶活性的影響,研究了BT殺蟲蛋自在玉米螟體內(nèi)的時(shí)空分布動(dòng)態(tài),忱較了人工汰選的對(duì)CRYLAB殺蟲蛋白產(chǎn)生抗性的玉米螟種群和敏感種群幼蟲解毒酶和中腸蛋白酶的變化、取食BT玉米后玉米螟抗、感種群中腸組織病理學(xué)變化,克隆了2個(gè)亞洲玉米螟類胰蛋白酶基因,并比較了抗性與敏感品系的TPL一2的核苷酸序列變化,成功構(gòu)建了TPL.2的原核表達(dá)載體。主要結(jié)果如下1.研究了表達(dá)CRYLAB殺蟲蛋白的BT抗蟲玉米對(duì)亞洲玉米螟幼蟲解毒酶、保護(hù)酶和中腸蛋白酶活性的影響,測(cè)定比較了取食BT玉米后幼蟲體內(nèi)Ⅱ一乙酰萘酯酶、乙酰膽堿酯酶、谷胱甘肽轉(zhuǎn)移酶、過(guò)氧化氫酶、超氧化物歧化酶、中腸總蛋白酶、類胰蛋白酶和類胰凝乳蛋白酶的活力。結(jié)果表明,取食BT玉米48H后亞洲玉米螟幼蟲體內(nèi)的旺一乙酰萘酯酶、谷胱甘肽轉(zhuǎn)移酶活力明顯低于對(duì)照,而乙酰膽堿酯酶活力顯著高于對(duì)照,在取食48H、60H、72H的活力分別是對(duì)照的2.00、1.50和2.50倍;而保護(hù)酶系、中腸總蛋白酶、弱堿性類胰蛋白酶和類胰凝乳蛋白酶的活性在取食48H后明顯受到抑制,但強(qiáng)堿性類胰蛋白酶的活性顯著高于對(duì)照,取食48H、60H和72H的活力分別是對(duì)照的4.00、1.67和1.33倍。2.采用ELISA方法檢測(cè)了亞洲玉米螟取食BT玉米后,CRYLAB蛋白在幼蟲體內(nèi)的分布情況,以中腸和血淋巴中含量最高,分別為267和417NGG一,在絲腺、脂肪體和馬氏管的含量則較低,生殖器官中沒(méi)有分布.取食過(guò)BT玉米的亞洲玉米螟發(fā)育的蛹、成蟲和卵中不含殺蟲蛋白?!?。利用MG愿G1LA方法,以不同的轉(zhuǎn)速進(jìn)行離心,成功地分離玉米螟中腸BBMV,且用CHAPS溶解了BBMV。直接提取的BBMV通過(guò)SDS.PAGE電泳可以分離到分子量約170、120、LOOKDA主帶和一些中低分子量的雜帶,經(jīng)過(guò)CHAPS溶解的BBMV可得到約170、120、100、80KDA四條主帶,其中以100KDA的帶譜最明顯。
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