TABLE II

Calcium Wave Velocity in Control Worms (N2 and glo-1) and itr-1 Mutants

AlleleCa2+ wave velocityNo. of waves observedNo. of waves with velocities too rapid to quantify
μm/s
N2/glo-133 ± 3 (10;28)302
itr-1(sa73)10 ± 1a (6;16)160
itr-1(sy327)64 ± 11b (6;11)2211
itr-1(sy290)91 ± 16c (5;6)137
  • a P < 0.05.

  • b P < 0.01.

  • c P < 0.001 compared with N2/glo-1 control animals.

  • Values are means ± SEM (n = number of intestines; number of waves). Images were acquired at 1-s intervals.