Table 1.

Responses of wild-type and thermotaxis mutants to temperature steps as predicted by the pirouette hypothesis

Stimulus Wild-type Cryophilic (ttx-3) Thermophilic (unc-86)
Downstep Turn Run Turn
Upstep Turn Turn Run
• The term “turn” means an increase in the probability of the reversal and/or the omega states with a decrease in the probability of the forward state; conversely, “run” means an increase in the probability of the forward state with a decrease in the probability of the reversal and/or omega states.