13932.刺猬棘刺的形態(tài)結(jié)構(gòu)及發(fā)育_第1頁(yè)
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1、分類號(hào)Q341學(xué)校代碼10129UDC577學(xué)號(hào)2010211006刺猬棘刺的形態(tài)結(jié)構(gòu)及發(fā)育TheMphologicalStructureDevelopmentofHedgehogQuill申請(qǐng)人：郭俊學(xué)科門類：理學(xué)學(xué)科專業(yè)：遺傳學(xué)研究方向：動(dòng)物分子遺傳學(xué)指導(dǎo)教師：尹俊教授論文提交日期：二〇一三年六月TheMphologicalStructureDevelopmentofHedgehogQuillAbstractHedgehogisak

2、indofanimalwithspecialshapeindertocurlintoaballtofightagainstenemiesitevolvesitsownuniquestructuredefensemechanismofskin.Theadulthedgehoghasquillsonthebackthesideofthebodytheotherpartiscoveredbyhair.Thedifferencesbetween

3、dsalventralhairfolliclemakeitanaturalmutant.Itishelpfultofurtherrevealthehairfolliclemphogenesismechanismbyexplingthereasonstothisdifference.InthisstudybasedontheaccumulationofmphologicalobservationtissuesectionsHEstaini

4、ngimmunohistochemicaltechnologywetrytodescribeitshistologicalfeaturesalkalinephosphataseexpressioncellproliferation.Usingembryosofdifferentperiodswedosomefurtherstudyfromthedevelopmentallevelofhedgehogspinestothesubcutan

5、eousmusclemphogenesisfunction.Conclusionsasthefollowing:1.Judgingfromtheembryonicdevelopmentthefmationofbackquillofhairfolliclesisearlierfollowingisthethickeningofthedermislayerthesubcutaneousmuscledevelopmentisslightlyb

6、ehindthehairfolliclestendtocompletegraduallyafterbirth.Thedevelopmentoftheabdominalhairfolliclelagbehindthebackthedermallayerisverythinsubcutaneousmuscleisunderdeveloped.Thedevelopmentprocessofquillshasgonethroughaperiod

7、ofthepreplacodestageplacodestagehairgermstagehairpeghairfollicles.Ithasthesimilardevelopmentalfmasdinaryhairfolliclesjustthehairbudhasalargersize.Whenitcomestohairgermfkedchannelsappearinthedermalpapillathisisconduciveto

8、themigrationofmesenchymebuildalargehairfollicles.2.ALP(alkalinephosphatase)ishighlyactiveintheanagenindermalpapilladermalsheathmigratingupperinhairgermperioddisappearwiththeapoptosisofmedullarycell.Intheearlydevelopmenta

9、lstageofembryonicquillstheexpressionoftheALPinthedermiscoversawiderangeofareasbutweakeninggraduallywiththedevelopmentalprocesswithastrictlimitationsinthedermisoftheindividualafterbirth.Theexpressionpatterntheactivityofha

10、irfolliclegrowthispositivelycrelatedindicatingthatALPexpressioninductionofhairfolliclesarecloselylinked.3.Inthedevelopmentalprocessofthequillbulbsmedulladermalsheathdermallayersallshowastrongproliferationpotential.Howeve

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