Comparative study of the olfactory epithelium of the three-spined stickleback (Gasterosteus aculeatus) and the nine-spined stickleback (Pungitius pungitius)

Research output: Contribution to journalArticle

Abstract

The olfactory epithelium of the three-spined stickleback (Gasterosteus aculeatus) and the nine-spined stickleback (Pungitius pungitius) has been studied with a conventional histochemical and a novel immunological staining technique. In both species, the sensory epithelium is arranged in folds separated by non-sensory epithelial tissue. In the nine-spined stickleback, intrinsic folds consisting of non-sensory cells are found in the apical part of the sensory epithelium where they divide the surface of the sensory epithelium into small islets. These non-sensory cells are non-ciliated, flattened and piled on top of each other; they contain numerous electron-translucent vesicles. The intrinsic folds are absent from the sensory epithelium of the three-spined stickleback. In both species, axons of receptor cells form a layer of fibers in the sensory epithelium immediately above the basal cells. In the three-spined stickleback, thick branches of the olfactory nerve are frequently found in this layer. These branches are only occasionally observed in the sensory epithelium of the nine-spined stickleback. Thus, the three-spined stickleback and the nine-spined stickleback show considerable differences in the organization of the sensory regions of the olfactory epithelium.

Details

Authors
Organisations
External organisations
  • Lund University
Research areas and keywords

Keywords

  • Comparative study, Histochemistry, Immunocytochemistry, Microsmatic fish, Nine-spined stickleback, Pungitius pungitius (Teleostei), Non-specific label, Olfactory epithelium, Three-spined stickleback, Gasterosteus aculeatus (Teleostei)
Original languageEnglish
Pages (from-to)267-273
Number of pages7
JournalCell & Tissue Research
Volume269
Issue number2
Publication statusPublished - 1992 Aug 1
Publication categoryResearch
Peer-reviewedYes