The Body's Own Recycling System (image) Helmholtz Centre for Infection Research Caption Using a microscope, the researchers are able to zoom in on the cells: If autophagy proceeds undisturbed, they are able to observe little digestive bubbles, shown in red, inside of which material is being degraded (left). If the final step is blocked, autophagosomes accumulate inside the cell, shown here in green (right). The dark circular area at the center is the nucleus. Credit Ralf Höcker / HZI Usage Restrictions None 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.