Ciurea-Van Saanen M L
Bull Soc Pathol Exot Filiales. 1980 May-Jun;73(3):241-6.
It was made possible to study the mode of nuclear division during all the stage of mitotic division of the free-living amoebae belonging to the families Schizopyrenidae and Hartmannellidae, when the massive number of them were fixed and stained. While the four phases of nuclear division vary in different genera, in the amoebae belonging to the same genus the mitotic division was similar. In the family Schizopyrenidae, the nucleus contains a central Feulgen-negative nucleolus which during mitosis form "polar masses". In the family Hartmannellidae, the resting nucleus has either a single Feulgen-negative nucleolus or several nucleoli. During mitosis the nucleolus or nucleoli disappear and a spindle with chromosomes arranged as an equatorial plate develops. The mitotic apparatus is an essential criterion in the differentiation of the genera Hartmannella and Naegleria.
当大量属于裂核变形虫科和哈特曼变形虫科的自由生活变形虫被固定和染色时，就有可能研究它们有丝分裂各阶段的核分裂模式。虽然核分裂的四个阶段在不同属中有所不同，但在属于同一属的变形虫中，有丝分裂是相似的。在裂核变形虫科中，细胞核含有一个中央孚尔根阴性核仁，在有丝分裂期间形成“极块”。在哈特曼变形虫科中，静止核有一个单一的孚尔根阴性核仁或几个核仁。在有丝分裂期间，核仁消失，形成一个带有染色体排列成赤道板的纺锤体。有丝分裂器是区分哈特曼变形虫属和纳格里亚属的一个重要标准。
