Mouse-Ear Cress (IMAGE) Washington State University Caption Arabidopsis thaliana (mouse-ear cress), a model organism in plant biology, was used in the experiments showing how ATP sends distress messages to surrounding cells. Credit WSU Photos 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.