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. 1976 Mar 29;282(13):1293-6.

[Ultrastructural changes in the nucleus and the nucleolus of Euglena gracilis Z during the cell cycle]

[Article in French]
O Bertaux, C Frayssinet, R Valencia
  • PMID: 819170

[Ultrastructural changes in the nucleus and the nucleolus of Euglena gracilis Z during the cell cycle]

[Article in French]
O Bertaux et al. C R Acad Hebd Seances Acad Sci D. .

Abstract

The chromosomes and nucleolus of the Euglenineae remain visible in electron microscopy throughout the cell cycle. This peculiarity allowed to show cyclic variations of the nucleus structure in synchronized cells of Euglena gracilis Z: I. different stages of chromosome condensation was observed; 2. ultrastructural modifications in the organization of the nucleolus were evidenced, characterized by its apparent continuity ("open appearence") or discontinuity ("closed appearance") with the nucleoplasm.

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