Xylem Cells (IMAGE) Nara Institute of Science and Technology Caption Patterns of different polymers in xylem cells. Credit Taku Demura Usage Restrictions This image may be used only with appropriate credit. 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.