Experimental Setup (IMAGE) Max Planck Institute for Chemical Ecology Caption This image shows the experimental setup with populations of five plants that were grown in monocultures or in different combinations and arrangements of plants whose defense genes were expressed differently. Credit Meredith Schuman, MPI Chem. Ecol. / <i>eLife</i> 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.