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  • Title: [Comparative analysis of the structure of the vacuolar system of the bladder granular cells in the frog and of the contractile vacuole complex of protozoans].
    Author: Snigirevskaia ES.
    Journal: Tsitologiia; 1983 Aug; 25(8):889-95. PubMed ID: 6356532.
    Abstract:
    A comparative morphological study of the vacuolar system of the frog urinary bladder epithelial cells and of the contractile vacuole complex of Paramecium caudatum enabled us to reveal some common structural elements in these: spongial channels and general vacuole reservoir. The structural similarity of these organoids seems to be the base of their analogous functions in the cell. Detection of vacuoles of various forms in different areas of granular cells may point to a possible migration of the vacuoles around their cytoplasm. Localization of spheric vacuoles in the innermost contact with the plasma membrane, and dilution of the intercellular space in this epithelial part may suggest an expulsion of the vacuole content in the basolateral part of the cell. The "contractile" vacuoles of granular cells are related to other intracellular structure: the Golgi apparatus, coated vesicles, microtubules, microfilaments.
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