Figure 6.
Impact of HsTRPA inhibitors on SER to thermal stimulations. Bees were injected in the median ocellus with menthol, ruthenium red (RuR) or Ringer as control. Sting extensions were recorded in response to 1 sec thermal stimulation (65°C; red) and tactile stimulation (white). (A) At low concentration (0.5 mM menthol and 0.1 mM RuR), no effect of the inhibitors appeared. (B) At 10 times higher concentrations (5 mM menthol and 1 mM RuR) both drugs significantly inhibited SER responses to heat. Different letters indicate significant differences among groups (p < αcorr = 0.025).