Brown and Nobles (IMAGE) University of Texas at Austin Caption Dr. Malcolm Brown and Dr. David Nobles with one of the cyanobacterial strains that produce cellulose and glucose. Credit Richard Santos, the University of Texas at Austin 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.