PROBABILISTIC SECRETION OF QUANTA FROM THE RELEASE SITES OF NERVE-TERMINALS IN AMPHIBIAN MUSCLE MODULATED BY SEASONAL-CHANGES

被引：10

作者：

BENNETT, MR

LAVIDIS, NA

机构：

[1] The Neurobiology Research Centre, Department of Physiology, University of Sydney, Sydney

来源：

NEUROSCIENCE LETTERS | 1991年 / 134卷 / 01期

关键词：

SECRETION; SEASONAL CHANGE; QUANTA; TOAD; END-PLATE;

D O I：

10.1016/0304-3940(91)90513-S

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The number of quanta secreted from release sites along visualized terminal branches at toad (Bufo marinus) neuromuscular junctions during different seasons was determined. Terminal branches were visualised by prior staining with the fluorescent dye, 3,3'-diethyloxadicarbocyanine iodide (DiOC2(5)). The average number of quanta secreted by release sites and recorded with an extracellular electrode (m(e)BAR) was determined at different positions along terminal branches in winter and summer. There was a decrease in m(e)BAR at different positions along terminal branches in winter compared with m(e)BAR at similar positions in summer during each of 3 years. The observations show that the capacity of release sites to secrete quanta is modulated by seasonal changes.

引用

页码：79 / 82

页数：4

共 26 条

[1] VARIATION IN QUANTAL SECRETION AT DIFFERENT RELEASE SITES ALONG DEVELOPING AND MATURE MOTOR TERMINAL BRANCHES [J].