Plant Performance During Combined Stresses is Dependent on Balanced Leaf Age-Dependent Crosstalk (image) Max Planck Institute for Plant Breeding Research Share Print E-Mail Caption PBS3 protects young leaves from ABA-mediated immune suppression, which tips the scales towards enhanced pathogen resistance. In older leaves exposed to simultaneous stresses, this effect is lost, and immunity is dampened. Credit Kenichi Tsuda Usage Restrictions Image may be reproduced only after permission from authors. Share Print E-Mail 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.