Symbiotic Bacteria FISH (IMAGE) Max Planck Institute for Chemical Ecology Caption Fluorescence in situ hybridization (FISH): The beetle owes its ability to digest plant tissue to tiny bacteria that live in special organs near its gut. The cross-section shows the symbiotic organs associated with the gut of the beetle. In these sac-like reservoirs, the symbiotic bacteria (green) are housed Credit Benjamin Weiss, Mainz University, and Hassan Salem, Emory University 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.