PMID: 2383Feb 6, 1976

Ultracytochemistry of the synaptic ribbons in the rat pineal organ

Cell and Tissue Research
R Krstíc


The synaptic complexes of the rat pinealocytes are neither cholinergic nor adrenergic. In the synaptic vesicles, a neurotransmitter carrier substance of lipid nature reacting with OsO4-Zn I2 mixture (similar to that present in both cholinergic and adrenergic vesicles) was not found. In addition, there were no indications of glucose-6-phosphatase or thiamine-pyrophosphatase activity in the synaptic vesicles. Thus, it appears that the synaptic vesicles do not originate from the rough or smooth endoplasmic reticulum. The synaptic ribbons do not contain carbohydrates, are of protein nature and possess some chemical resemblance to microtubules and microtubular bouquets. Appropriate ultracytochemical reactions have not shown detectable quantities of sodium and calcium ions in pinealocyte synaptic complexes.


Jun 28, 1974·Science·J Axelrod
Jul 1, 1967·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·A Rambourg
Mar 1, 1968·Journal of Ultrastructure Research·F E Bloom, G K Aghajanian
May 23, 1973·Zeitschrift für Zellforschung und mikroskopische Anatomie·L Vollrath, H Huss
Nov 29, 1973·Zeitschrift für Zellforschung und mikroskopische Anatomie·L Vollrath
Jan 1, 1974·Calcified Tissue Research·M Martoja
Jan 1, 1968·Zeitschrift für Zellforschung und mikroskopische Anatomie·A Pellegrino de Iraldi, R Gueudet
Mar 1, 1970·The American Journal of Cardiology·R L KleinA Thureson-Klein
Jun 1, 1969·Journal of Ultrastructure Research·O Trujillo-Cenóz
Feb 1, 1965·Experimental Cell Research·V K HOPSU, A U ARSTILA
Sep 1, 1975·Pediatric Annals·W W McCrory

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Nerve Tissue Proteins
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