A new technology for the quantitative analysis of the location of nucleolar DNA in situ from EM data of the ultrastructure of the nucleolus in allium sativum cells and from the modified NAMA-Ur DNA specific staining method was developed.

• 应用电子显微镜技术和改进的NAMA UrDNA特异染色方法 ；获得蒜核仁超微结构的图像 ；提出一种新技术定量分析核仁中DNA原位位置 .