ISSN:
1435-1463
Keywords:
Djungarian Hamster
;
pineal gland
;
photoperiod
;
dense-core vesicles
;
synaptic ribbons
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary The ultrastructure of the superficial part of the pineal gland ofPbodopus sungorus was examined. Dense-core vesicles and synaptic ribbons in pinealocytes of animals kept under different photoperiods were counted, revealing marked differences. Pinealocytes of short-day animals compared with long-day animals exhibit an increase of dense-core vesicles coincident with a decrease of synaptic ribbons. It is assumed that the corresponding numerical changes of these organelles are of functional significance in relation to pineal secretory activity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01243366
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