Aspergillus fumigatus (IMAGE) DOE/Oak Ridge National Laboratory Caption Shown here is a culture of the fungus Aspergillus fumigatus, one of several microbes being studied at ORNL for their impact on bioenergy crops such as the poplar tree. Credit Tomás Rush/ORNL, U.S. Dept. of Energy Usage Restrictions use photo credit License Original 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.