New Photoreceptor in Volvox (IMAGE) University of Würzburg Caption In this multicellular Volvox alga, the novel light sensor 2c-cyclop was labeled with fluorescence (green). It shows up in membranes around the nucleus. Credit (Image: Eva Laura von der Heyde) Usage Restrictions This image may only be used in connection with reports concerning the discovery of the new photoreceptor 2c-cyclase. 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.