Chhana Ullah (IMAGE) Max Planck Institute for Chemical Ecology Caption Chhana Ullah characterizing transgenic high salicylic acid poplar lines. Credit Anna Schroll Usage Restrictions Credit must be given to the creator. Adaptations must be shared under the same terms. License CC BY-SA 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.