1、揚州大學碩士學位論文關(guān)于水稻幼穗分化發(fā)育的研究姓名：成勤勤申請學位級別：碩士專業(yè)：植物學指導教師：王忠20060501揚卅I大學碩士學位論文2StudyonRudimentaryPanicleDevelopmentinRicePostgraduate：ChengQinqinSupervisor：ProWangZhongAbstractRudimentarypanicledevelopmentisveryimportantintheric

2、eyieldFarmexperimentswereconductedtostudytlemorphologicstructuraltransformationofembryosacandpollen，asalsothecorrelatedbiologicalactivitywhichhasasignificantmeaninginriceproductionandreproductivemolecularbiologyofriceThe

3、mainresultSareshownasfollowing：(1)Aftertwicemeioticdivisions，archesporialcelt，thefirststageofembryosacdevelopment，dividesintoquartetsLaterundergoingthricemitoticdivisionsitbecomes8celledembryosacfromwhichthematureembryos

4、acdevelops(2)Alsobeginwitharchesporialcell，pollendividespericlinallyintoprimaryparenchymacellwhichformedepidermis、endothecium、middlelameliaandtapetumthroughpericlhlaldivision，andprimarysporogenouscell，whichformedmaturepo

5、llenfullofreservematerialssuchasstarch(3)Theratioofeartostemrisessteeplyafterspikeletprimordiumdifferentiationandgetsgreaterthan05whenthepollengetsmature(4)TheactivitiesofCAT、SOD、PODinantherdescendgraduallyduringpollende

6、velopmentstages(5)Atthemeioticdivisionofpollenmothercell，thecontentofsolublesugarinantherreachesmaximumvalue，andthendescendsgraduallyf6)Thecontantofsolubleproteininearsgetsthefirstpeakvalueatthemeioticdivisionofpollenmot

7、hercell，andthenrisesslightlyduringtheformativestageofstaminateandpistillate；andwhatinleavesgetsminimumvalueatthemeioticdivisionofpollenmothercell，andthellrisessteeply(7)ThecontentofIAAshowsadescentinthefoFinofS’andthecon

8、tentofZRishighatbothendsandlowatintermedialstagesinearsduringtherudimentarypanicledevelopingKeyWords：Rice；Rudimentarypanicle；Embryosac；Pollen；Peroxydase(PODXCatalase(CAT)；Superoxide(SOD)；Solublesugar；Solubleprotein；IAA；Z