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Figure 1. In Vivo Measurement of Electrical Excitability of the Venus Flytrap.(A) Surface potential of Venus flytrap revealed AP firing in response to touch and 3% NaCl treatment.(B) Membrane voltage recording of impaled Dionaea glands exposed to 3% NaCl. This near seawater concentration evoked spontaneous electrical activity with up to 20 APs/min.(C) Membrane voltage recording of impaled Dionaea glands in the absence of Na+ (black) and presence of 510 mM Na+ (red). Mechanical stimulation of a trigger hair resulted in firing of APs, which did not differ clearly in amplitude and profile. Representative APs are shown. Image published in: Böhm J et al. (2016) © 2016 The Authors. This image is reproduced with permission of the journal and the copyright holder. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives license Larger Image Printer Friendly View |