Figure 2. Extracellular ATP triggers chemokinesis of epiplexus cells. (A and D) Representation of the tracked paths superimposed on the original image under control conditions and in the presence of exogenous 100 µM ATP. Labels in the top right of the images represent the time relative to the start of the experiment (0 min). Note the 25 min was the end of the baseline and 120 min was the end of the experiment. Scale bar is 50 µm. Raw data showing the distance traveled by individual epiplexus cells in control (B) and in the presence of ATP (E). Each colored line represents an individual epiplexus cell. (B and E) Raw distance traveled during 5 min intervals; (C and F) normalized summative distance traveled.