Figure 2 | Scientific Reports

Figure 2

From: Internal state affects local neuron function in an early sensory processing center to shape olfactory behavior in Drosophila larvae

Figure 2

Keystone-LN is centrally positioned in the Drosophila larval antennal lobe. (A) Cartoon showing the anterior end of a third-instar Drosophila larva. Confocal images of the larval brain were taken with a 10 × objective (scale bar is 100 µm) (B) and a 25 × objective (scale bar is 25 µm) (C). Anti-eGFP antibody stains a single pair of neurons in the two anterior brain lobes (B,C) and none in the ventral nerve cord (B). (D) Peripheral olfactory circuit of the Drosophila larva. Excitatory and inhibitory connections between Keystone-LN, OSNs, Broad and Picky LNs, uPNs, and mPNs are shown. Adapted from7. (E–G) The number of synapses between Keystone-LN and different classes of neurons is tabulated for (E) OSNs, (F) PNs, and (G) LNs.

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