Video 3

In vivo imaging of neuronal activity in the hypostome of Hydra. The method of generating transgenic Hydra strains that express genetically encoded Ca2+-sensitive fluorescent proteins (GCaMP) in specific neuronal populations is established in the Bosch lab in Kiel. Here, the activity of the neuronal population N6 is induced by addition of reduced glutathione (GSH).

Credits: Christoph Giez / CAU Kiel