Arabidopsis Leaf (IMAGE) Université de Genève Caption These are cells at the surface of an Arabidopsis leaf after (bottom) UV exposure. Credit © Sylvain Loubéry, UNIGE 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.