怀地黄不同品种花粉形态的扫描电镜观察  

SEM Observation on the Pollen Grains of Foreteen Species in Rehmannia glutinosa f.hueichingensis (Chan et Sehih) Hsiao

作　　者：路淑霞[1] 朱命炜[1] 周春娥[1] 谷凤平[1] 康炎[1] 周延清[1] 

机构地区：[1]河南师范大学生命科学学院,河南新乡453007

出　　处：《河南师范大学学报（自然科学版）》2009年第6期126-128,132,共4页Journal of Henan Normal University(Natural Science Edition)

基　　金：国家高技术研究发展计划(863计划)项目(2006AA100109)资助(子课题);河南省植物学省级重点学科资助项目

摘　　要：利用扫描电镜观察了14个品种怀地黄[Rehmannia glutinosa f．hueichingens-is （Chan et Sehih）Hsiao]的花粉形态．结果表明：花粉均为单粒花粉，呈长圆形至长矩圆形，大小为40．2～46．9μm，具3个萌发孔，网状纹饰，网眼明显；根据花粉形状可将其分为3类：（1）长方形或近长方形（2）椭圆形或近椭圆形（3）梭形．研究表明，花粉特征，特别是花粉的形态特征，在怀地黄不同品种间具有的可见变异，它们在分类学上的价值应予以关注．In the present study,the pollen morphology of 1 4 species in [-Rehmannia glutinosa f hueichingensis （Chan et Sehih） Hsiao]has been examined under the scanin -g electron microscope（SEM）. In these species,the pollen grains are long-elliptic, goniotreme,reticulate exine ornamentation. The size of pollen grains ranges from 40.2to 46.9 μm in diameter. Based on the shape of pollen differentiation,pollen grains are distinc -tly divided into three types. One is that the pollen is rectangled ,one is ellips,another is Spindle-shaped. The results show that the species of [Rehmannia glutinosa f hueichingensis （Chan et Sehih） Hsiao] can be classified on the basis of the pollen morphology , especially the shape of pollen. The forms are different among different species and therefore can provide some proof for identification of some species in [＇Rehrnannia glutinosa f hueichingensis （Chan et Sehih） Hsiao] .

关 键 词：怀地黄 花粉形态 扫描电镜 

分 类 号：Q944.571[生物学—植物学]