Cultures of the green alga C. reinhardtii (IMAGE) Friedrich-Schiller-Universitaet Jena Caption PhD student Anxhela Rredhi from the University of Jena presents cultures of the green alga Chlamydomonas reinhardtii: on the left the wild type and on the right a mutant lacking a specific cryptochrome. The mutant algae contain significantly more pigment. Credit Jens Meyer/University Jena Usage Restrictions none License Original 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.