Rostratin A and Exserohilum Rostratum (IMAGE) University of Basel Caption This is the structure of Rostratin A (foreground) and the fungus 'exserohilum rostratum' from which it was isolated (background). Credit University of Basel, Olivier Baudoin with permission from G. Roberts Usage Restrictions Please use with proper credit. 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.