摘要
借助光学显微镜和扫描电镜研究了碱蓬属 2种植物碱蓬和盐地碱蓬的花粉形态 ,并对不同生境条件下盐地碱蓬 4种生态变式的花粉形态进行了对比研究 ,研究结果表明 :花粉粒外部形态成球形 ;大小在15 .4～ 2 4 .0 μm之间 ;具散萌发孔 ,萌发孔数量在 4 6～ 6 5之间 ,萌发孔直径为 3.1～ 5 .4 μm ;花粉粒表面光滑 ,其上散布许多颗粒状小突起 ,萌发孔上亦有数目不等的小突起。以上数值在不同种间有较明显的差异 ,在盐地碱蓬不同生态变式间亦有差异 ,但差异较小。这些细微的特征差异可为碱蓬属植物分类提供参考依据 。
The pollen morphology of two species in genus suaeda Forsk and ecophenotypic variartions of Suaeda Salsa in different ecological condition,belong to the family Chenopodiaceae in Shan Dong province,was examined by means of light microscope and scaning electronmicroscope.Theresults were showed as follows: Pollen grains are globate,15.4-24.0μm size,panpori,the numbers of the panpori are 46-65,3.1-5.4μm size per aperture,and there are different number of granulates on the surface of the pollen grains and apertures.The tiny difference between pollen grains may provide useful reference in phytotaxonomica of Suaeda Forsk.
出处
《山东林业科技》
2002年第2期1-4,共4页
Journal of Shandong Forestry Science and Technology
基金
国家自然科学基金资助项目。编号 :3 9870 12 9
关键词
花粉形态
分类
碱蓬属
扫描电子显微镜
pollen morphology
taxonomy
Suaeda
scaning electron microscope
