Fig. 1.

Ca²⁺ channels mediating 1-octanol-evoked Ca²⁺ influx into the ASH soma and axon. A: 1-octanol (oct) stimulates Ca²⁺ transients in the soma and axon of ASHs; nemadipine-A (NemA) preferentially inhibited somal Ca²⁺ signals. B: loss or block of the L-type (EGL-19), but not the P/Q-type (UNC-2) Ca²⁺ channels strongly decreased the somal Ca²⁺ signal. C: axonal Ca²⁺ signals required both L-type and P/Q-type channels. ΔF/F_o, change in fluorescence over original fluorescence intensity. Values are means ± SE; nos. within/above bars indicate n. *P < 0.05 compared with wild type (wt)/untreated. †P < 0.05 compared with unc-2 untreated.