Arbuscules in Root Cortex (image) Boyce Thompson Institute Share Print E-Mail Caption This is a clarified root segment with fungus stained fluorescent green. Arbuscules resemble sponges around center of root. Credit Dr. Daniela Floss Usage Restrictions Use of this image requires appropriate caption and credit. Share Print E-Mail 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.