Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1977 Apr 20;179(3):401-12.
doi: 10.1007/BF00221110.

Oogenesis in Acerentomon gallicum Jonescu (protura). Previtellogenic and vitellogenic stages

S Biliński

Oogenesis in Acerentomon gallicum Jonescu (protura). Previtellogenic and vitellogenic stages

S Biliński. Cell Tissue Res. .

Abstract

Late stages of oogenesis in Acerentomon gallicum Jonescu have been studied by means of light and electron microscopy. Each of the two ovaries of this species consists of a single panoistic ovariole. Late previtellogenic and early vitellogenic oocytes are enclosed in an electron opaque layer, the so-called primary sheath. The precursors for this sheath are most likely synthesized by follicle cells. The yolk develops through autosynthesis, with free ribosomes, dictyosomes and lamellar bodies being involved in the process. Mature yolk spheres contain proteins and polysaccharides. Besides the organelles that take part in vitellogenesis, mitochondria and cisternal stacks of the rough endoplasmic reticulum occur in the ooplasm.

PubMed Disclaimer

References

    1. J Cell Biol. 1963 Sep;18:621-49 - PubMed
    1. Z Zellforsch Mikrosk Anat. 1968;89(1):17-38 - PubMed
    1. J Morphol. 1972 Aug;137(4):385-415 - PubMed
    1. Z Zellforsch Mikrosk Anat. 1966;71(4):525-44 - PubMed
    1. Dev Growth Differ. 1971 Dec;13(4):379-98 - PubMed