Structure and evolution of the nucleolus during oogenesis

  • Antonio Coimbra
  • Carlos Azevedo
Part of the Electron Microscopy in Biology and Medicine book series (EMBM, volume 2)


To a large extent, the morphological organization of nucleoli reflects the degree of ribosomal RNA (rRNA) synthesis taking place in cells. Oocytes are cells in which ribosome formation is extremely active, but only at specific stages of oogenesis. Nucleoli of developing oocytes offer a wealth of morphological information related to the physiological state of the cell. Correlations of nucleolar structure and function during oogenesis can be made on the basis of new formation, in large numbers, intense growth and numerous morphological transformations.


Xenopus Laevis Human Oocyte Vitellogenic Oocyte Pachytene Stage Lampbrush Chromosome 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Martinus Nijhoff Publishers, Boston, The Hague, Dordrecht, Lancaster 1984

Authors and Affiliations

  • Antonio Coimbra
    • 1
  • Carlos Azevedo
    • 2
  1. 1.Institute of Histology and Embryology Faculty of MedicineUniversity of OportoOportoPortugal
  2. 2.Department of Cell Biology Institute of Biomedical SciencesUniversity of OportoOportoPortugal

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