Subdivisions of the olfactory system in the sterlet Acipenser ruthenus.
Identifieur interne : 000889 ( Ncbi/Curation ); précédent : 000888; suivant : 000890Subdivisions of the olfactory system in the sterlet Acipenser ruthenus.
Auteurs : M H Hofmann [Allemagne] ; H. BleckmannSource :
- Neuroscience letters [ 0304-3940 ] ; 1997.
English descriptors
- KwdEn :
- MESH :
- chemical : Horseradish Peroxidase.
- anatomy & histology : Fishes, Olfactory Bulb, Olfactory Pathways.
- ultrastructure : Nerve Fibers.
- Animals.
Abstract
Subdivisions of the olfactory system of the sterlet Acipenser ruthenus were investigated by means of horseradish peroxidase (HRP) injections into the nose, and by soybean agglutinin binding studies. With both methods primary olfactory fibers were labeled which projected to the ventral part of the glomerular layer of the olfactory bulb. The dorsal part of the olfactory bulb did not bind soybean agglutinin, however, even though HRP tracing showed primary olfactory fibers in that area. This confirms earlier morphological studies which claim the existence of distinct subdivisions of the olfactory system in the sturgeon. The lack of soybean agglutinin binding in the dorsal part of the olfactory bulb suggests, however, that this part is not homologous with the accessory olfactory system of tetrapods.
PubMed: 9350856
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