¶¯Úè¦+&º (IMAGE) Institute of Science and Technology Austria Caption Links: langsamer Gravitropismus beim Farn C. richardii nach 0, 6, 12, 24 und 36h; rechts: schneller Gravitropismus beim Nacktsamer P. taeda nach 0, 1, 3, 6 und 12h Credit © IST Austria - Yuzhou Zhang/Friml Group 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.