Cornichon (image) University of Maryland Share Print E-Mail Caption At left, in a normal Arabidopsis thaliana pollen grain (inside the dashed line), glutamate receptor-like proteins (green) are located in the sperm cells (arrow). At right, in a plant with a mutated cornichon protein gene, the receptor proteins are scattered throughout the entire pollen grain, disrupting important calcium signaling processes. Credit José Feijó/University of Maryland Usage Restrictions None Share Print E-Mail 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.