ISSN:
1432-0878
Keywords:
Glandulae submaxillares
;
Mammals
;
Acinar cell granules
;
Ultrastructure
;
Histochemistry
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary Granules in acinar cells show considerable variations in size, shape, electron-density and molecular organisation of secretory material. Discrete organelles with an electron-dense homogenous matrix are seen in the guinea-pig and to some extent in the male hamster. Similar organelles with moderate electron-density are seen in the cat and dog. Acinar cells of the cat, hamster, guinea-pig and to a lesser extent the rat, contain discrete, pale granules and also confluent organelles arising from two to three of the pale particles. Composite, electron-pale secretory units are observed in the dog and rabbit. No correlation could be elicited between the histochemical reactivity of the acinar cells and the content of the secretory enzymes. The relationship between the histochemical reactivity and ultrastructural appearance of acinar cell granules and the organelles containing kallikrein, trypsin-like proteases and amylase seems much more important and functionally relevant. Morphological aspects of the intracellular transport and secretion of granules are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00306847
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