[Role of Ca2+ in regulating the serotonin-dependent synapse between P and R-cells of leech segmented ganglion].
Changes in the membrane-associated Ca2+ concentration and viscosity of the plasmatic membrane of P- and R-cells segmented ganglia of medicinal leech upon a variation of extracellular serotonin concentration were investigated. It is shown that the transmission of rhythmic excitation from P- to R-cells is due to the formation of the serotonin-dependent synapse and affects the distribution of the membrane-associated Ca2+ and intracellular processes controlling the viscosity of the membrane.
Maksimov
G V
GV
Lomonosov Moscow State University, Russia.
Chatterdzhi
Sh
Sh
Kleinhaus
A L
AL
Rubin
A B
AB
D000818:Animals; D002118:Calcium / Q000378:metabolism*; D002462:Cell Membrane / Q000378:metabolism; D005453:Fluorescence; D005724:Ganglia / Q000166:cytology / Q000378:metabolism*; D007865:Leeches; D008564:Membrane Potentials; D012701:Serotonin / Q000378:metabolism*
D012701:Serotonin; D002118:Calcium