Cyanobacterial cells (IMAGE) University of Colorado at Boulder Caption Array of cyanobacterial cells showing carboxysomes labeled with green fluorescent protein (GFP) and the photosynthetic membranes outlining each cell (magenta). Credit Jeffrey C. Cameron 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.