Summary
Projection of primary olfactory neurons within the ipsilateral olfactory lobes in the crayfish brain was determined by axoplasmic transport of tritiated leucine, following restricted exposure of small numbers of aesthetascs to the radioligand.
Label was found in all psilateral glomeruli in dose-dependent amounts, depending upon the number of aesthetascs exposed.
Maximum labeling of all ipsilateral glomeruli was observed following exposure of all available aesthetascs on an antennular filament. Restricting the label to a minimum of two aesthetascs resulted in very weak labeling of all ipsilateral glomeruli; regional labeling of selected glomeruli following restricted exposure was never seen.
We conclude that the projection of olfactory neurons from each sensory ganglion within an antennule is maximally divergent, involving all glomeruli in the ipsilateral olfactory lobe.
Growth of the olfactory system is marked by increases both in numbers of sensory ganglia and in numbers of olfactory lobe glomeruli.
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Mellon, D. (1990). Evidence for Non-Topographic Afferent Projection and Growth-Related Central Reorganization in the Crayfish Olfactory System. In: Wiese, K., Krenz, WD., Tautz, J., Reichert, H., Mulloney, B. (eds) Frontiers in Crustacean Neurobiology. Advances in Life Sciences. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-5689-8_4
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DOI: https://doi.org/10.1007/978-3-0348-5689-8_4
Publisher Name: Birkhäuser, Basel
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