Document Detail


The Golgi apparatus in the acinar cells of the developing embryonic pancreas: I. Morphology and enzyme cytochemistry.
MedLine Citation:
PMID:  3578085     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The Golgi apparatus of pancreatic acinar cells of rat embryos was studied during development from day 13 through day 20 of gestation. The morphological and enzyme cytochemical patterns varied characteristically in the course of cell differentiation. A pronounced system of "rigid lamellae" characterized the area near the trans face of the Golgi stacks in the protodifferentiated and early phases of the differentiated states; by contrast, "rigid lamellae" were sparse in the terminal period of gestation. Reaction product of acid phosphatase labeled the "rigid lamellae" in the protodifferentiated state, was extended across the majority of the stacked cisternae in the early differentiated state, but was restricted to the trans side again in the later periods of cell differentiation. The early phase of the differentiated state was characterized by the tight association of the endoplasmic reticulum and Golgi cisternae on the trans side; the close spatial relationship of the two compartments was lessened after production of secretion granules had started. The findings are in line with those of recent studies on the Golgi organization in some other types of cells in different functional states, and they present the embryonic pancreatic tissue as another model for demonstrating the high flexibility of the Golgi complex. In agreement with the patterns previously found in the absorptive cells of the small intestine, the present results show that the close associations of the endoplasmic reticulum and cisternae of the trans Golgi side predominate in the early stages of cell differentiation.
Authors:
M Pavelka; A Ellinger
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The American journal of anatomy     Volume:  178     ISSN:  0002-9106     ISO Abbreviation:  Am. J. Anat.     Publication Date:  1987 Mar 
Date Detail:
Created Date:  1987-06-18     Completed Date:  1987-06-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0376312     Medline TA:  Am J Anat     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  215-23     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Cytoplasmic Granules / physiology
Gestational Age
Golgi Apparatus / ultrastructure*
Histocytochemistry
Pancreas / embryology*,  enzymology,  ultrastructure
Rats

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