Fig. 3.

Mechanosensation is required for yeast odor-enhanced PER. (A and B) Modified PER induced by touching a foreleg (A) or the labellum (B) in conjunction with yeast odor. n = 4 to 8 and n = 8 for legs and labellum, respectively. (C) Modified PER induced by touching a foreleg with 10 mM sucrose in solutions of differing viscosity and yeast odor. Methyl cellulose was added to change viscosity. n = 6 to 9. The centipoise (cP) values for 10 mM sucrose and 30% yeast are 1.05 cP and 1.62 cP, respectively. (D) Mechanosensory screen. Modified PER was performed using 10 mM sucrose and yeast odor. n = 8 to 18. All data are presented as means ± SEM. Unpaired Student’s t tests or Mann–Whitney U tests. *P < 0.01, **P < 0.001.