Table 2.
Identified co-transmitter neurons that influence stomatogastric ganglion (STG) circuits.
| Identified neuron | Co-transmitters | Target circuit(s) | Key action |
|---|---|---|---|
| 1GPR | ACh, 5HT, AST-A | PR, GMR | PR/GMR: M/A |
| 1MPN | GABA, Proct | PR, GMR | PR: M/A; GMR: I |
| 2GN1/2 | GABA, CCK-LI, FXRFamide-LI | PR, GMR | PR/GMR: M/A |
| 1MCN1 | GABA, Proct, CabTRP Ia | PR, GMR | PR: M/A; GMR: A |
| 1,3IVN | HA, FXRFamide-LI | PR, GMR, OR | PR: I; GMR: A; OR: M |
| 4PS | HA, Crust-MS* | PR, GMR, OR | PR/GMR/OR: M/A |
Legend: M, modulates; A, activates; I, inhibits; LI, like-immunoreactivity; *Crust-MS is a FXRF-like peptide. 1C. borealis; 2H. gammarus; 3P. interruputs; 4H. americanus. PR, pyloric rhythm; GMR, gastric mill rhythm; OR, oesophageal rhythm.