Plants with and without GSNOR (IMAGE) University of Massachusetts Amherst Caption Left are normal plants and at right, plants deprived of GSNOR, a regulatory protein that plays an important role in plants' coping skills with stress in their environment. Credit UMass Amherst 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.