TGNap1 experiment (IMAGE) Michigan State University Caption After injecting Arabidopsis thaliana with the plant pathogen Pseudomonas syringae, Michigan State University researchers were able to probe a plant’s defense response. Credit Kara Headley/MSU-DOE Plant Research Laboratory Usage Restrictions None License Original 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.