Journal ArticleDOI
Seasonal variations in olfactory sensory neurons--fish sensitivity to sex pheromones explained?
TLDR
It is demonstrated that the number of crypt cells in the olfactory epithelium of the crucian carp varies dramatically throughout the year, which may explain previous studies demonstrating a relationship between circulating androgen and Olfactory sensitivity to sex pheromones.Abstract:
Olfactory sensory neurons of vertebrates regenerate throughout the life of the animal. In fishes, crypt cells are a type of olfactory sensory neurons thought to respond to sex pheromones. Here, we demonstrate that the number of crypt cells in the olfactory epithelium of the crucian carp varies dramatically throughout the year. During winter, few crypt cells are observed at any location within the sensory epithelium. In spring, the majority of crypt cells are located deep in the epithelium not yet exposed to the environment. However, during the summer spawning season, crypt cells are positioned at the epithelial surface. These findings may explain previous studies demonstrating a relationship between circulating androgen and olfactory sensitivity to sex pheromones.read more
Citations
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Book ChapterDOI
Molecular Markers in the Study of Non-model Vertebrates: Their Significant Contributions to the Current Knowledge of Tetrapod Glial Cells and Fish Olfactory Neurons.
TL;DR: This chapter focuses on crypt cells, a morphological type of olfactory cells specific of fish, and describes hypothetical function and evolutive position of these cells (prior to the appearance of the vomeronasal organ in tetrapods).
Journal ArticleDOI
Review: Can Toxic Substances Initiate Psychotic Behavior? Part II. Organophosphate (OP) Substances with Anti-Acetylcholinesterase Enzyme Activity
TL;DR: The need for a moratorium on (or, even better, the prohibition of) the use of OPs in agricultural and veterinary practices as pesticides, and the recognition of the useof OPs against the civilian population as chemicals to control protests and demonstrations as a criminal act is stressed.
Journal ArticleDOI
Ultrastructure of the olfactory epithelium in a flatfish, barfin flounder (Verasper moseri).
TL;DR: The barfin flounder may be a suitable material to study crypt cells because it has relatively abundant crypt cells in the OE, whose function is unclear.
Journal ArticleDOI
Response of Male Blue Catfish, Ictalurus furcatus, and Male Channel Catfish, Ictalurus punctatus, to Female Channel Catfish Given Pheromonal Steroids or Prostaglandin
Jason S. Broach,Ronald P. Phelps +1 more
TL;DR: The results suggest that the overall best pheromone to attract blue catfish and channel catfish males is PGF-2α at 48–96 h post-injection.
Dissertation
Adult Neurogenesis and Neurogenic Plasticity in the Zebrafish Brain
TL;DR: The robust neurogenic capacity of the adult zebrafish brain is taken advantage to examine differences in forebrain and sensory neurogenic niches in regards to cytoarchitectural organization, neurogenic plasticity, and regulation.
References
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Journal ArticleDOI
Mechanisms of olfactory discrimination : Converging evidence for common principles across phyla
TL;DR: The findings support the hypothesis that olfactory transduction and neural processing in the peripheral Olfactory pathway involve basic mechanisms that are universal across most species in most phyla.
Journal ArticleDOI
Neurogenesis and neuron regeneration in the olfactory system of mammals. I. Morphological aspects of differentiation and structural organization of the olfactory sensory neurons
TL;DR: The morphological stages of maturation and ageing of this exceptional neuron have been described both at light and electron microscopical levels and the neural elements have been classified as: basal cells proper, globose basal cells, and neurons.
Journal ArticleDOI
Neural regeneration and the peripheral olfactory system
TL;DR: Cell renewal in the epithelium is directed to replace neurons when they die in normal animals and does so at an accelerated pace after damage to the olfactory nerve, and multiple growth factors are likely to be central in regulating choice points in epitheliopoiesis.
Journal ArticleDOI
Dynamics of cell populations in the olfactory epithelium
TL;DR: The olfactory organ-unlike most receptor sheet-must be directly exposed to airborne chemicals, but this requirement also mates vulnerability to bacterial and viral invasion, to the mechanical impact of the respiratory airstream, and to the toxic effects of environmental pollutants.
Related Papers (5)
Phyletic distribution of crypt-type olfactory receptor neurons in fishes.
Anne Hansen,Thomas E. Finger +1 more
Diversity in the olfactory epithelium of bony fishes : Development, lamellar arrangement, sensory neuron cell types and transduction components
Anne Hansen,Barbara S. Zielinski +1 more