ISSN:
1432-0878
Keywords:
Neurosecretion
;
Sinus gland
;
Ultrastructure
;
Potassium stimulation
;
Crustacea
;
Hormone release
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary Electron-microscopic comparison of K+-stimulated and unstimulated crab sinus glands reveals significant differences in neurosecretory terminal morphology. Sinus glands exposed to elevated K+ saline for increasing periods of time show increasing numbers of exocytotic release profiles, vacuoles, and multilamellate bodies, and a decrease in the number of microvesicles within 10 μm of release sites. These morphological changes are well correlated with secretion of red-pigment-concentrating hormone, as determined by bioassay of perfusate from the individual preparations.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00225564
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