Root Tip of <i>Arabidopsis thaliana</i> (IMAGE) Duke University Caption A vertical cross section of the growing tip of a root reveals stacks of cells at different stages of development, with newer cells near the tip and older cells higher up. Credit Image courtesy of Philip Benfey, Duke University 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.