Compartmentalized cGMP responses to benzaldehyde in AWC sensory neurons. A–C, Time courses of cGMP responses in cilia (A), dendrites (B), and soma (C) of AWC. Traces are averages of the relative fluorescence ratio. Gray bar is the duration of odor stimulus. Shading in the graphs shows SEM. Dotted boxes indicate the time focused in bar graphs. D, Summary of transient reduction in cilia and dendrites. (p = 0.004111, p = 0.004191, and p = 0.003277; 10−3, 10−4, and 10−5, respectively). **p < 0.01, significant difference. E, F, Summaries of cGMP responses in dendrites (E) and soma (F) during 120–130 s. Error bars indicate SEM. n = 10 each region.