摘要
应用电子扫描显微镜,对12个李品种的花粉进行了形态观察。结果表明：12个品种的花粉均属于中等大小的花粉（25-50μm）,花粉粒两端均为圆弧状。一些李品种的花粉外部形态差异明显,赤道面观分别呈长球形和扁球形之分,扁球形花粉的萌发孔在赤道面凸出角端;极面观有三裂片圆形和三角形之分;均具三孔沟,外壁纹饰均为条纹孔穴型,具平行分叉条纹或平行条纹呈皱波状,脊表面有或少或多的孔穴。不同李品种在花粉粒大小、萌发孔、形态上均表现一定的差异性,对于李品种的区分、引种、选育和生产实践中具有一定的参考和应用价值。
The pollen morphology of 12 Plum cuhivars were observed through scanning electron microscope. The result showed that.The size of the pollen of 12 cultivars were medium（25-50μm）, and the polar was are. The diversity was obvious in different plum pollens outside configuration, equator view of pollen was long or flat sphericity, the bourgeon channel of flat sphericity was protrudent in equator;axis view of plum pollen was three split round or triangle shape; There were three bourgeon channel at all pollen, and exine sculpture was the combination of stria and foveola, the stria was parallel fureation or corrugation, there were many or few foveola on surface of pollen ridge. The diversity of microspore size, hourgeon channel and configuration can provide some important information for different cuhivars, breeding and production.
出处
《北方园艺》
CAS
北大核心
2008年第12期5-8,共4页
Northern Horticulture
基金
国家自然科学基金资助项目(30770227)
国家林业局自然保护区研究资助项目(460-8101)
关键词
花粉粒
花粉形态
扫描电镜
李品种
Microspore
Pollen morphology
Scanning electron microscope
Plum cultivars
