Cytokinins (IMAGE) DOE/Brookhaven National Laboratory Caption Blue staining shows the distribution of the root-synthesized cytokinins. Knocking out the transporter gene impairs their translocation to leaves (right). Credit Brookhaven National Laboratory Usage Restrictions With 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.