Dionaea Trigger Hairs (IMAGE) University of Würzburg Caption Open trap of Dionaea muscipula with potential prey. Middle: basal part of a trigger hair, where action potentials are elicited in the sensory cells upon touch stimulation. During the late phase of the action potential, potassium ions need to be reimported into the sensory cells via KDM1 to enable the generation of consecutive action potentials. Credit (Picture: Ines Kreuzer, Soenke Scherzer / University of Wuerzburg) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.