Fig 9. Ih channels regulate synaptic glutamate release by modulating Cac channel activity.
(A) ERG traces of Ca-α1T; I h and cac; I h flies. The fractions of flies exhibiting the ERG oscillation phenotype and the number of recorded flies are presented in the right panel. (B) ERG traces of flies with depletion of Ca-α1D or Cac channels. The fraction of flies exhibiting the ERG oscillation phenotype and the number of recorded flies are presented in the right panel. (C) Depolarization of the RMP of ACs via ectopic expression of NaChBac suppresses rhythmical depolarization in I h mutant flies. The fractions of flies exhibiting the ERG oscillation phenotype and the number of recorded flies are presented in the right panel. An ERG trace of flies expressing NaChBac in wild-type ACs is also shown.