Arabidopsis thaliana (IMAGE) Michigan State University Caption Arabidopsis thaliana plants are a powerful model organism that helped Michigan State University researchers reveal the role of a plant protein known as TGNap1 in limiting pathogen growth. 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.