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Science 5 January 1973:
Vol. 179. no. 4068, pp. 79 - 82
DOI: 10.1126/science.179.4068.79
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Articles

Exocytosis in the Adrenal Medulla Demonstrated by Freeze-Etching

Una Smith 1, David S. Smith 1, Hans Winkler 1, and James W. Ryan 1

1 Department of Medicine, University of Miami School of Medicine, and Papanicolaou Cancer Research Institute, Miami, Florida 33152

Replicas of fractured chromaffin cells are indicative of a range of activities thought to characterize exocytosis, including attachment of secretory vesicles to the plasma membrane, fusion, extrusion of contents, and membrane retrieval. Exocytosis sites are abundant on stimulated cells but are infrequent when calcium is omitted from the system.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Calcium-induced displacement of membrane-associated particles upon aggregation of chromaffin granules.
R Schober, C Nitsch, U Rinne, and S. Morris (1977)
Science 195, 495-497
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