Elektronenmikroskopischer nachweis saurer mucopolysaccharide in den flaschenzellen der Xenopus-niere

Translated title of the contribution: Ultrastructuml localization of acid mucopolysaccharides in the so-called flask cells of the Xenopus nephron

L. Jonas, P. Röhlich

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

"Flask cells" (Flaschenzellen), peculiar bottle-shaped epithelial cells in the intermediate segment of the Xenopus nephron, contain a highly developed intracellular channel system filled with acid mucopolysaccharides. The cells were studied with the colloidal ferriammoniumglycerate method at pH 1,6 at the electron microscopic level. The material inside the intracellular channels, cytoplasmic vesicles in the neighbourhood of the latters, several cisternae of the Golgi apparatus and some autophagosomes were found to be positive. A thick coat of positive material was observed also on the luminal surface of the epithelial cells in the intermediate segment. In frogs living in salt water for 2 months, the intracellular channels are strongly under-developed, their reduced content shows a weak reaction; positive vesicles and Golgi cisternae occur exceptionally. If the animals were returned to fresh water, an increase of the reactive vesicles and Golgi cisternae as well as the contents of the channels could be observed.

Translated title of the contributionUltrastructuml localization of acid mucopolysaccharides in the so-called flask cells of the Xenopus nephron
Original languageGerman
Pages (from-to)56-68
Number of pages13
JournalZeitschrift für Zellforschung und mikroskopische Anatomie
Volume104
Issue number1
DOIs
Publication statusPublished - Mar 1 1970

Keywords

  • Flask cells
  • Kidney
  • Mucopolysaccharides
  • Osmotic stress
  • Xenopus laevis

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Histology
  • Cell Biology

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