Distler, Paul G. and Gruber, Claudia and Boeckh, Juergen (1998) Synaptic connections between GABA-immunoreactive neurons and uniglomerular projection neurons within the antennal lobe of the cockroach, Periplaneta americana. SYNAPSE, 29 (1). pp. 1-13. ISSN 0887-4476,
Full text not available from this repository.Abstract
Synapses within deutocerebral glomeruli between GABA-immunoreactive, putatively inhibitory local interneurons and uniglomerular projection (output) neurons were demonstrated by means of a combination of GABA-immunogold labeling and intracellular HRP injection. The following connections were identified. 1) GABA-immunoreactive (GABAir) neurons form output synapses in a dyadic fashion onto a uniglomerular projection neuron and, in addition, a second GABAir neuron. A uniglomerular projection neuron in turn forms dyadic output synapses onto two GABAir neurons. Several examples of reciprocal connections have been identified between, first, GABAir neurons and uniglomerular projection neurons, and, second, GABAir neurons themselves. 2) GABAir neurons are serially connected with uniglomerular projection neurons via interposed GABAir processes. In some cases, also the first GABAir process of such a polysynaptic connection formed an output synapse onto the projection neuron, Such serial connections may form the structural basis for both, the feedforward inhibition as well as the feedforward disinhibition of uniglomerular projection neurons by GABAergic neurons. The reciprocal contacts may serve as control devices that modulate the output activity of the projection neurons. (C) 1998 Wiley-Liss, Inc.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MOTH MANDUCA-SEXTA; OLFACTORY SYSTEM; SPHINX MOTH; LOCAL INTERNEURONS; LOCUSTA-MIGRATORIA; INSECTS; ORGANIZATION; INFORMATION; DEUTOCEREBRUM; GLOMERULI; insects; olfactory system; synapses; electron microscopy |
| Subjects: | 500 Science > 590 Zoological sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Zoologie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 20 Jun 2023 12:21 |
| Last Modified: | 20 Jun 2023 12:21 |
| URI: | https://pred.uni-regensburg.de/id/eprint/49881 |
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