为了进一步证实和我们前一篇论文(Ⅰ地衣红先染的 Giemsa 分带)报道的甜菜染色体 Giemsa 带型,都是前期染色体,我们采用海氏苏木精-BSG 技术,在未除去苏木精余色的标片上,得到与地衣红先染的染色体形态和带型基本相似的同时,清晰的观察到核仁的存在。材料和方法材料及其培养、取材方法,与Ⅰ地衣红先染的 Giemsa 分带完全相同,不同点在于 In order to further confirm that the Giemsa band of beet chromosomes reported in our previous paper (Giemsa zonation of lichen-red first dye) are all pre-chromosomes, we used Haematoxylin-BSG technique, The remaining color of the label, and the lichen red first dye chromosome morphology and pattern similar to the basic, clearly observed the presence of nucleoli. MATERIALS AND METHODS Materials and their culture, method of harvesting, identical to the Giemsa zonation of Ⅰ lichen red first dye, except that