Cartoon drawing of the sunflower seedling (IMAGE) Geological Society of America Caption Cartoon drawing of the sunflower seedling, the fungi (AMF—arbuscular mycorrhizal fungi) and the layers of soil used in the experiment. Turface is an artificial soil that was used to eliminate uranium contamination. Credit Credit: L. Wasylenki. Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC 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.