Root Mycorrhizal Structures (IMAGE) Max-Planck-Gesellschaft Caption Blue-stained arbuscular mycorrhizal structures in a root, magnified with a light microscope. Credit MPI of Molecular Plant Physiology 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.