PSY (IMAGE) Nagoya University Caption PSY receptor mutant (right) and wild type (left). PSY receptor mutant is less stress tolerant, but its growth is facilitated. Credit Dr. Yoshikatsu Matsubayashi Usage Restrictions Credit must be given 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.