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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Dissertation
Effects of Steroid and Prostaglandin Injections on Hybridization Success Between Female Channel Catfish and Male Blue Catfish
TL;DR: Overall trapping efficiency based on the number of captures that could have been obtained was poor, but males were three times more likely to be captured with a PGF-2α injected female than with an ethanol-only injected female, or a 17,20β-P injected female.
Journal ArticleDOI
Ultrastructural and immunocytochemical studies on the olfactory receptor neurons in the Ichthyosaura alpestris
Józef J. Różański,Gioele Capillo,Eugenia Rita Lauriano,Marialuisa Aragona,Michał Kuciel,Giacomo Zaccone,Krystyna Żuwała +6 more
Journal Article
Recent advances in fish pheromone research with emphasis on their potential applications in aquaculture and fishery management.
Journal ArticleDOI
Mixed input to olfactory glomeruli from two subsets of ciliated sensory neurons does not impede relay neuron specificity in the crucian carp.
TL;DR: Despite receiving mixed olfactory sensory neuron innervation, mitral cell axons in the crucian carp are selectively labelled, suggesting that they project the mixed inputs separately to the telencephalon.
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.
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