Wave (IMAGE) John Innes Centre Caption A fluorescent calcium wave spreads through a plant after a leaf is cut off, travelling to other leaves and carrying information that the leaf is wounded. Credit Annalisa Bellandi Usage Restrictions No restrictions. License Public Domain 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.