Root and soil sampling (IMAGE) DOE/Oak Ridge National Laboratory Caption A researcher collects a root and soil sample for a multi-omics study to understand microbiome dynamics in the poplar tree. Credit Melanie Mayes, 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.