小鹽芥（Thellungiella halophila）的形態(tài)解剖學及胚胎學研究.pdf

1、河南大學碩士學位論文小鹽芥（Thellungiellahalophila）的形態(tài)解剖學及胚胎學研究姓名：董美芳申請學位級別：碩士專業(yè)：遺傳學指導教師：尚富德20050601河南大學2005屆碩士研究生學位論文AbstractThisexperimentstudiedtheanatomyandembryologyofhalophyte，fhellungiel]ahalophila(CAMey)0ESchulz，throughoutside

2、observation，measureand1ightmicroscopyofparaffin—sectionedmaterialThearticledetailssystematicallytherelationshipsbetweentheanatomicalstructureofvegetativeorgansof7西ellungiella施lophilaanditshighsalinitytoleranceTheresearch

3、includeditsmicrosporogenesis，thedevelopmentofmalegametophyte，megasporogenesis，thedevelopmentoffemalegametophyte，fertilization，thedevelopmentofembryoFurthermore，theexperimentstudiedtherelationshipsbetweendifferentstagesof

4、theprocessessitedakIoveandmorphologicalcharacterofflowerbud，flowerandfruitConclusionsasfollows：1thestructuralcharactersofroot，stemandleafareadaptedtodroughtandsalinatedenvironmentAnditshalophytictypeismore1ikelytothatofp

5、seudohalophyte(1)Primarystructureinitsrootshasonelayeroflarge，vacuolatedepidermiscellsInternally，cortexiscomprisedofexodermisandendodermiswhosecellsaresimilartothatofepidermisinstructuralfeature(2)primarystructureinitsst

6、emincludesaringof8’10differentvascularbundlesinsize。pithandraysTherearedevelopedvasculartissuesinsecondarystrucrureofrootsandstems(3)Itsleafincludesseperatelyonelayerofupperandlowerepidermisceliswithlargeandhighlyvacuola

7、tedcelisBetweentheepidermises1iestheindistinctlydifferentiatedmesophyllwithmanybigchloroplastssurroundedbymanyspacesThefeaturescommenedaboveisadaptedtodrought，salinationsoilThepaperconcludesthatThellungieliahalophilaismo

8、relikelytopseudohalOphyteforithasnotypicalnatureofeuhalophyteorsecretorystructuresuchassaltglandsbeforeoraftersaltadaptation2TheandroeciumofThellungiellahalophilaaretetradynamousstamenEachantherhasfourpollensacThecytokin