Wilted Leaves (IMAGE) University of California - Los Angeles Caption Researchers measured leaves' drought tolerance at the "turgor loss point" -- the level of dehydration that causes them to wilt. Credit Lawren Sack 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.