CdtE 3 (IMAGE) Rice University Caption Rice postdoctoral researchers Fanglong Zhao, left, and Zhiwen Liu work with a marine fungus, Penicillium citrinum, from which they isolated an enzyme that could simplify the development and manufacture of drugs. Credit Jeff Fitlow/Rice University 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.