青岛老鹳草花粉和花芽扫描电镜制样条件探讨

为了探究与老鹳草相关类型花粉花芽的样品电镜制备，采用直接观察法和戊二醛固定冷冻干燥法对青岛老鹳草花粉扫描电镜制样条件进行了研究。结果表明：直接观察法制备的青岛老鹳草花粉颗粒在扫描电镜下形态饱满，结构清晰，花粉表面的纹饰和突起微观结构清晰完整；改进的FAA单固定冷冻干燥法处理的青岛老鹳草花芽形态学结构完整，层次丰富，立体感强，细胞失水皱缩得到明显改善。通过对不同制样方法进行比较，最终得到可靠简单易行的样品制备方法，对牦牛儿苗科植物的研究及相关类型花粉花芽的样品制备有重要的指导意义。

Study on Sampling Methods of Scanning Electron Microscope on Pollen and Bud of Geranium tsingtauense Yabe.

In order to explore the revelant types of Geranium pollen and flower buds preparation methods of scanning electron microscope, air-dried and glutaric aldehyde fixed methods were compared to study preparation condition of scanning electron microscopy. The results showed that Geranium pollen grains prepared through direct observation were full and clear in the scanning electron microscopy, microscopic structure were clear and morphological integrity micro-structure of flower bud treated with FAA single fixation were morphological in- tegrity,layers rich, stereo sense strong, cell dehydration shrinkage was improved significantly. Through the comparison of different specimen preparation methods, reliable technique which was easier in operation and low cost was achieved,it had important guiding significance for the preparation of Geranium tsingtauense, pollen and bud.