Phragmoplast with Microtubules and Myosin (IMAGE) University of Massachusetts Amherst Caption The large globular objects in cyan blue are chloroplasts, which auto-fluoresce. There is no myosin VIII on those structures. A new model of how plant cells position phragmoplasts during cell division to direct cytokinesis answers what has been an open question for decades in cell biology. Credit UMass Amherst 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.