Recording of the potassium efflux during a single action potential inChara corallina

摘要

The potassium efflux from cells ofChara corallinawas recorded simultaneously with an action potential using a flame photometer and a perfusion system. The potassium efflux increased instantaneously with the action potential and lasted for 12–76 sec. The net potassium efflux during an action potential averaged 308 picomoles/cm2impuls