The Preparation of the Squid Giant Synapse for Electrophysiological Investigation

1990 ◽  
pp. 171-192 ◽  
Author(s):  
Elis F. Stanley
Keyword(s):  
Electrophysiological Investigation ◽  
Squid Giant Synapse ◽  
Giant Synapse

The effect of repetitive stimulation on the passive electrical properties of the presynaptic terminal of the squid giant synapse

1979 ◽  
Vol 206 (1164) ◽  
pp. 293-306 ◽  
Keyword(s):  
Electrical Properties ◽  
Transmitter Release ◽  
Sea Water ◽  
Presynaptic Terminal ◽  
Repetitive Stimulation ◽  
Constant Current ◽  
Current Pulses ◽  
Squid Giant Synapse ◽  
Giant Synapse ◽  
Passive Electrical Properties

The resting electrical properties of the presynaptic terminal of the squid giant synapse have been determined by using constant current pulses. After short periods of repetitive stimulation, the terminal resistance, time constant and capacitance are found to be increased. These changes are absent in terminals bathed in artificial sea water containing no calcium, and sea water containing 5 mM cobalt. It seems likely that these changes are associated with transmitter release.

scholarly journals Postsynaptic activation at the squid giant synapse by photolytic release of L-glutamate from a ‘caged’ L-glutamate.

1993 ◽  
Vol 465 (1) ◽  
pp. 1-8 ◽  
Author(s):  
J E Corrie ◽  
A DeSantis ◽  
Y Katayama ◽  
K Khodakhah ◽  
J B Messenger ◽  
...  
Keyword(s):  
Squid Giant Synapse ◽  
Giant Synapse

scholarly journals Enhanced synaptic transmission at the squid giant synapse by artificial seawater based on physically modified saline

2014 ◽  
Vol 6 ◽  
Author(s):  
Soonwook Choi ◽  
Eunah Yu ◽  
Guilherme Rabello ◽  
Suelen Merlo ◽  
Ajmal Zemmar ◽  
...  
Keyword(s):  
Synaptic Transmission ◽  
Artificial Seawater ◽  
Squid Giant Synapse ◽  
Giant Synapse

scholarly journals Role of Rab27 in synaptic transmission at the squid giant synapse

2008 ◽  
Vol 105 (41) ◽  
pp. 16003-16008 ◽  
Author(s):  
E. Yu ◽  
E. Kanno ◽  
S. Choi ◽  
M. Sugimori ◽  
J. E. Moreira ◽  
...  
Keyword(s):  
Synaptic Transmission ◽  
Squid Giant Synapse ◽  
Giant Synapse

scholarly journals The inositol high-polyphosphate series blocks synaptic transmission by preventing vesicular fusion: a squid giant synapse study.

1994 ◽  
Vol 91 (26) ◽  
pp. 12990-12993 ◽  
Author(s):  
R. Llinas ◽  
M. Sugimori ◽  
E. J. Lang ◽  
M. Morita ◽  
M. Fukuda ◽  
...  
Keyword(s):  
Synaptic Transmission ◽  
Squid Giant Synapse ◽  
Giant Synapse

scholarly journals CALCIUM-CONTAINING ELECTRON-DENSE STRUCTURES IN THE AXONS OF THE SQUID GIANT SYNAPSE

1974 ◽  
Vol 61 (1) ◽  
pp. 146-155 ◽  
Author(s):  
D. E. Hillman ◽  
R. Llins
Keyword(s):  
Calcium Binding ◽  
Signal Strength ◽  
Sheath Cell ◽  
Synaptic Site ◽  
X Ray ◽  
Cell Processes ◽  
Squid Giant Synapse ◽  
Calcium And Phosphorus ◽  
High Concentrations ◽  
Giant Synapse

Following the Oschman and Wall technique, electron-dense structures (EDS) were found on unstained, unosmicated membranes of squid giant synapse axons. These densities contain high concentrations of calcium and phosphorus as identified by energy dispersive X-ray analysis. Based on the signal strength, the quantity is significantly greater than that of other regions of the membrane or tissue spaces. The calcium EDS occur as plaques or globules along the axonic membrane, and small globules are found between sheath cell processes. EDS also occur at the synaptic site. These densities were correlated with the opacity change seen in giant axons. It is proposed that these structures represent sites where the calcium-binding protein found by other investigators has become nearly saturated with calcium.

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