Cell and Tissue Research

, Volume 248, Issue 3, pp 499–503

A cobalt-lysine study of primary olfactory projections in king salmon fry (Oncorhynchus tshawytscha Walbaum)

  • Gary T. Bazer
  • Sven O. E. Ebbesson
  • James B. Reynolds
  • Raymond P. Bailey

DOI: 10.1007/BF00216475

Cite this article as:
Bazer, G.T., Ebbesson, S.O.E., Reynolds, J.B. et al. Cell Tissue Res. (1987) 248: 499. doi:10.1007/BF00216475


Primary olfactory projections in king salmon fry, Oncorhynchus tshawytscha, were studied with the cobaltlysine technique and after sectioning the entire head in a frozen state. The labeled axons can be traced from the olfactory epithelium, where cobalt was applied, into the olfactory bulb and to the ventral and lateral regions of the ventral telencephalon. The latter projection has not previously been reported, and may in actuality represent a transneuronal transport of cobalt. The terminations in the glomerular layer and in the external cellular layer of the bulb appear to be distributed differently in different parts of the bulb, suggesting regional specializations. A few neurons in the bulb were also always labeled suggesting that they may project to the olfactory epithelium.

Key words

Olfactory epithelium Olfactory bulb Cobaltlysine method Teleosts Salmon, Oncorhynchus tshawytscha 


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Copyright information

© Springer-Verlag 1987

Authors and Affiliations

  • Gary T. Bazer
    • 1
  • Sven O. E. Ebbesson
    • 2
  • James B. Reynolds
    • 3
  • Raymond P. Bailey
    • 4
  1. 1.Department of AnatomyLouisiana State University School of MedicineShreveportUSA
  2. 2.Medical Sciences (WAMI) and Institute of Marine SciencesUniversity of AlaskaFairbanksUSA
  3. 3.Cooperative Fishery Research UnitUniversity of AlaskaFairbanksUSA
  4. 4.Medical Sciences (WAMI)University of AlaskaFairbanksUSA
  5. 5.University of Alaska-FairbanksFairbanksUSA

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