T-Type Ca2+ Current Activity during Oocyte Growth and Maturation in the Ascidian Styela plicata
Figure 4
Pharmacological characterization of Ca2+ currents in GV-B oocyte of Styela plicata.
A) Representative traces of voltage protocol and current records evoked by stepping membrane potential to voltages between −70 and +20 mV, in 10 mV increments, from a holding potential of −80 mV in control experiment (left) and after NiCl2 treatment (right). B) Average current-voltage relationship (I/V curve) showing the effects of modified ASW and pharmacological agents (NiCl2; TTX; mibefradil) on control currents. All I/V curves were obtained by averaging the peak current for twenty oocytes. Error bars indicate S.E.