Uninfected and Infected Root Nodules (IMAGE) Aarhus University Caption Uninfected root nodule induced by <em>M. loti</em> bacteria synthesizing incompatible exopolysaccharides (left) ; infected nitrogen fixing root nodule induced by <em>M. loti</em> bacteria synthesizing compatible exopolysaccharides (right). Credit Yasuyuki Kawaharada, Aarhus University Usage Restrictions Credit to Yasuyuki Kawaharada, Aarhus University, Denmark 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.