Unlocked Enzyme Structure Shows How Strigolactone Hormone Controls Plant Growth (IMAGE) University of California - Davis Caption Using a permanently unlocked form of the plant enzyme MAX3, UC Davis researchers are exploring the mechanism by which the plant hormone strigoractone regulates a massive network of genes controlling plant growth and architecture. Credit Nitzan Shabek/UC Davis Usage Restrictions May be used with acknowledgement. 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.