Intracellular calcium stores drive slow non-ribbon vesicle release from rod photoreceptors
Rods are capable of greater slow release than cones contributing to overall slower release kinetics.Slow release in rods involves Ca2+-induced Ca2+ release (CICR).By impairing release from ribbons, we found that unlike cones where release occurs entirely at ribbon-style active zones, slow release from rods occurs mostly at ectopic, non-ribbon sites