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The distribution of GABA-like immunoreactivity in relation to ganglion structure in the abdominal nerve cord of the locust (Schistocerca gregaria)

Watson, Alan Hugh David and Pfluger, H.-J. 1987. The distribution of GABA-like immunoreactivity in relation to ganglion structure in the abdominal nerve cord of the locust (Schistocerca gregaria). Cell and Tissue Research 249 (2) , pp. 391-402. 10.1007/BF00215523

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Abstract

An antiserum raised against GABA was used to stain the abdominal nervous system of the locust. To interpret the results, however, it was first necessary to describe the structure of the free abdominal and terminal ganglia. This was done on the basis of ethyl-gallate staining. The free abdominal ganglia are similar in structure to the abdominal neuromeres of the metathoracic ganglia. The terminal ganglion is composed of four neuromeres (representing ganglia 8–11), but only three can be distinguished in the adult on morphological grounds. The eighth neuromere resembles the free ganglia, but the ninth lacks DCI (dorsal commissure I) and the ‘T’ tracts. In the tenth, only DCII and III are recognisable of the commissures, but two more posterior ones of uncertain homology are also present. Immunocytochemistry reveals three populations of somata in each abdominal ganglion. Of these only one, the medial posterior group, is found in the thoracic ganglia. DCIV and the supra-median commissure are composed of stained neurites, DCII and V contain both unstained neurites and DCI, III and VI are unstained. With the exception of the median ventral tract, all the longitudinal tracts contain some stained axons.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: Q Science > QR Microbiology
Publisher: Springer Verlag
ISSN: 0302-766X
Last Modified: 02 May 2019 11:31
URI: http://orca-mwe.cf.ac.uk/id/eprint/65008

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