大庆地区委陵菜属植物花粉形态研究  

Study on Pollen Morphology of Potentilla Species in Daqing Area

作　　者：尤凤丽[1] 梁彦涛[1] 曲丽娜[1] 胡敏[1] 张国发[1] 

机构地区：[1]大庆师范学院生命科学学院,黑龙江大庆163712

出　　处：《中国农学通报》2010年第16期337-340,共4页Chinese Agricultural Science Bulletin

基　　金：黑龙江省教育厅科学技术研究(指导)项目"大庆地区委陵菜属植物遗传关系分析及园林应用特征评价"(11544002);大庆师范学院科学研究基金项目"大庆地区委陵菜属植物分子系统学研究"(08ZJ02)

摘　　要：植物的花粉在遗传上具有较强的保守性和稳定性,对于探讨植物的分类、起源和系统演化具有重要意义。该试验利用光学显微镜和扫描电镜对大庆地区9种委陵菜属植物的花粉粒进行了形态比较研究。结果表明,9种委陵菜在光镜和4000倍扫描电镜下,显示出较多的相似性;在8000倍以上扫描电镜下,表面纹饰分为三种类型:非双棱脊条状纹饰、多沟脊条状纹饰和无沟脊条状纹饰,脊宽在0.11～0.29μm之间,脊间宽在0.37～0.78μm之间,脊连续或不连续,表面具穴或微颗粒,孔沟形状为条形和裂缝状。从分析9种委陵菜属植物花粉形态的系统演化及分类特征来看,9种委陵菜花粉的演化趋势与传统分类的演化基本保持一致。The plant pollen which is conservative and stable on genetic has great significance for the study on plant classification,origin and evolution.Optical microscopy and scanning electron microscope（SEM） were used to compare the pollen grains of nine kinds of Potentilla species in Daqing area.The pollen grain shows much similarity through optical microscopy and 4000×scanning electron microscope.Through 8000×scanning electron microscope,it was showed three types of surface strip decoration of non-double-edge ridge ornamentation,multi-groove ridge strip motif and non-groove strip,the width of ridge is from 0.11μm to 0.29 μm and the width between ridges is from 0.37μm to 0.78μm,continuously or discontinuously ridges.There were holes or microparticle on the surface and the colporate shapes were linear and fractured.The evolution trend concluded by the 9 kinds of Potentilla species pollen study of system evolution and classification was consistent with the traditional classification trend.

关 键 词：委陵菜属 花粉形态 扫描电镜 

分 类 号：S688.4[农业科学—观赏园艺]