Basic protein and ribonucleic acid in the cytoplasm of the ovarian oocyte in the golden hamster

  • Brenda S. Weakley
Article

Summary

Cytochemical and autoradiographic studies indicate that granular-fibrillar cytoplasmic bodies and intermitochondrial substance in the hamster ovarian oocyte contain both basic protein and ribonucleic acid. The studies suggest that the granular-fibrillar bodies and intermitochondrial substance, although morphologically similar, are not functionally identical. It is proposed that the granular-fibrillar bodies represent stored inactive maternal messenger RNA synthesized during the lampbrush chromosome stage of oogenesis for use in the developing embryo. The function of the intermitochondrial substance is still obscure. The suggestion is put forward that it may represent the synthetic machinery for the manufacture of those mitochondrial proteins for which the mitochondrial DNA is insufficient to code.

Key-Words

Oocytes Cytoplasm Basic protein Ribonucleic acid 

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Copyright information

© Springer-Verlag 1971

Authors and Affiliations

  • Brenda S. Weakley
    • 1
  1. 1.Department of AnatomyUniversity of DundeeDundeeScotland

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