Foral Stem Cells (IMAGE) Nara Institute of Science and Technology Caption Proper flower growth depends on the activation and suppression of floral stem cells (left). KNUCKLES and WUSCHEL expression are seen to colocalize in the nucleus to suppress floral stem cell activation (right). Credit Toshiro Ito 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.