How Roots Find Their Way to Water (IMAGE) Goethe University Frankfurt Caption Light Sheet Fluorescence Microscopy is based on two processes: 1) lateral illumination of the specimen with laser light along a plane and 2) detection of fluorescent light emitted from a thin volume centred around the illumination plane. The plant (Arabidopsis thaliana) is mounted in a three-dimensional assembly, stands upright in a plant-derived gel appropriate for the species and supplied with medium and light. Credit Daniel von Wangenheim 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.