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. Author manuscript; available in PMC: 2015 Sep 8.
Published in final edited form as: Curr Biol. 2014 Aug 14;24(17):1969–1977. doi: 10.1016/j.cub.2014.07.069

Figure 4. Sweet neuron responses of sugar/bitter compound mixtures are de-repressed by acids in sensilla with silenced bitter neurons.

Figure 4

Maximum relative fluorescence change (ΔF/F%) of sweet neuron responses stimulated by sugar/bitter compound mixtures with or without acid in tarsi of flies expressing the inward-rectifying potassium channel Kir2.1 (Gr64f-LexA, Gr33aGAL4/LexAop-GCaMP3.0,UAS-Kir2.1; black bars). Silencing of the bitter neuron has little or no effect on de-repression; Controls are Gr64f-LexA/LexAop-GCaMP3.0,UAS-Kir2.1 (white bars); den, denatonium. lob, lobeline. quin, quinine. ΔF/F(%), maximum relative fluorescent change before and after tastant application.