Tomato Plant Leaves (IMAGE) University of California - Riverside Caption The engineered receptor was introduced into transgenic tomato to establish if it was sufficient to control water use. When plants transpire (release water to the atmosphere) it cools their leaves, so reduced water consumption can be measured by small differences in leaf temperature. The transgenic plants (bottom) show reduced water use when treated with the agrochemical, but not the control non-transgenic plants (top). Credit Sang-Youl Park, UC Riverside 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.