Wheat Coleoptile and Statolithes (IMAGE) CNRS Caption Inset: Wheat coleoptile growing upward after being inclined. Closeup of cell showing pile of statoliths (microscopic starch-filled grains) that enables the plant to detect gravity. Credit Yoel Forterre/Olivier Pouliquen/PNAS 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.