Testing Plant Roots (IMAGE) University of California - San Diego Caption UC San Diego and Stanford scientists studied maize (corn) plant roots and their metabolites—molecules involved in the plant’s energy production—under different settings, including a control condition (left) and treated with aconitate (center) and succinate (right). Credit Dickinson Lab, UC San Diego Usage Restrictions Must be used in conjunction with Dickinson paper on plant root growth. 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.