Stained Halothiobacillus neapolitanus (IMAGE) Michigan Medicine - University of Michigan Caption Bacteria with organelles called carboxysomes stained in cyan. Magenta indicates positioning systems organizing the cell. Credit Vecchiarelli lab, University of Michigan Usage Restrictions Credit must be given to the creator. License CC BY 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.