1. Haberly LB, Hansen DJ, Feig SL and Presto S. (1987) Distribution and ultrastructure of neurons in opossum piriform cortex displaying immunoreactivity to GABA and GAD and high-affinity tritiated GABA uptake. J Comp Neurol 266:269-90 [Journal] .

NeuronCompartmentPropertyConnectivityNotes
Piriform cortex anterior interneuron deep layer GABA cellSomaGabaGABAergic input?GABAergic interneurons in deeper layers of piriform cortex receive symmetric synapses as well as asymmetric synapses (Haberly LB et al, 19871 ).
Piriform cortex anterior interneuron deep layer GABA cellProximal equivalent dendriteGabaGABAergic input?GABAergic interneurons in deeper layers of piriform cortex receive symmetric synapses as well as asymmetric synapses (Haberly LB et al, 19871 ).
Piriform cortex anterior interneuron superficial GABA cellSomaGaba.Layer Ia horizontal cells receive a very small number of symmetrical synapses (presumably GABAergic?), in contrast to interneurons of the deeper layers of the piriform cortex -- globular, multipolar cells (Haberly LB et al, 19871 ).
Piriform cortex anterior interneuron superficial GABA cellAxon terminalGabaDistal apical dendrites of pyramidal cellsThe GABABR1a antibody selectively marked the neuropil in layer Ia, where afferent olfactory fibers and intrinsic GABAergic axons terminate on the distal apical dendrites of pyramidal neurons. GABABR1a may be involved in feedforward synaptic circuits (Princivalle A et al, 20002 ). Horizontal cells in layer Ia are labelled for GAD and GABA, but not for GABA takeup, suggesting lack of local axon collaterals or high-affinity GABA takeup sites (Haberly LB et al, 19871 ).

Classical References: first publications on each compartmental property; search PubMed for complete list
1.  Haberly LB, Hansen DJ, Feig SL and Presto S. (1987) Distribution and ultrastructure of neurons in opossum piriform cortex displaying immunoreactivity to GABA and GAD and high-affinity tritiated GABA uptake. J Comp Neurol 266:269-90 [Journal] .
2.  Princivalle A, Spreafico R, Bowery N and De Curtis M. (2000) Layer-specific immunocytochemical localization of GABA(B)R1a and GABA(B)R1b receptors in the rat piriform cortex. Eur J Neurosci 12:1516-20.