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Morphological evidence for tracer uptake at the active zones of stimulated frog neuromuscular junction

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  • Anatomy, Histology, Histochemistry
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Summary

Lanthanum or ferritin added to the fixative were found in small and non-coated vesicles located at active zones in nerve-muscle preparations stimulated by potassium during cold aldehyde fixation. The presence of labeled vesicles at active zones supports the hypothesis that a double process of exo-endocytosis might occur under moderate stimulation conditions.

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Authors and Affiliations

  1. ERA CNRS No. 884, Laboratoire de Cytologie, Université Pierre et Marie Curie, 7, Quai Saint-Bernard, F-75230, Paris 05, France

    M. Pecot-Dechavassine

Authors
  1. M. Pecot-Dechavassine
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Additional information

I thank Professor R. Couteaux for his constant interest during the course of this work, Dr J. Molgo for helpful discussion and M.D. Levieux for his efficient technical assistance.

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Pecot-Dechavassine, M. Morphological evidence for tracer uptake at the active zones of stimulated frog neuromuscular junction. Experientia 39, 752–753 (1983). https://doi.org/10.1007/BF01990308

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  • DOI: https://doi.org/10.1007/BF01990308

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