Yellow cells (IMAGE) Penn State Caption "Yellow cells" of the symbiotic algae, Philozoon collosum, isolated from the soft coral, Capnella gaboensis, collected off the east coast of southern Australia. Credit Matthew R. Nitschke 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.