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  • 1
    Electronic Resource
    Electronic Resource
    Activities of F-type prostaglandins as releaser sex pheromones in cobitide loach, Misgurnus anguillicaudatus
    Amsterdam : Elsevier
    Comparative Biochemistry and Physiology -- Part A: Physiology 107 (1994), S. 161-169 
    Details
    ISSN: 0300-9629
    Keywords: Misgurnus anguillicaudatus ; Olfaction ; PGF"2"α ; Pheromone ; Prostaglandins ; Sexual behavior ; sex pheromones
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0300-9629(94)90289-5
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  • 2
    Electronic Resource
    Electronic Resource
    Behavioral and electrophysiological evidences that the lateral line is involved in the inter-sexual vibrational communication of the himé salmon (landlocked red salmon, Oncorhynchus nerka) (1994)
    Springer
    Journal of comparative physiology 174 (1994), S. 539-549 
    Details
    ISSN: 1432-1351
    Keywords: Salmon ; Sexual behavior ; Spawning ; Vibrational communication ; Co2+ ; Lateral line
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Characteristic vibrational signals are suggested to be exchanged between the sexes during the spawning behavior in the himé salmon (landlocked red salmon, Oncorhynchus nerka). To check whether the lateral line is used to detect and process these vibrational signals, we examined how Co2+, which is known to block the mechano-electrical transduction in the lateral line detector, affects both the spawning behavior and lateral line response of the male himé salmon. The results showed that Co2+ blocked both the spawning behavior towards the vibrating model (Fig. 2) and the lateral line response to the vibrational stimuli (Figs. 5, 6), if the fish were forced to swim in the water containing 1.0 mM Co2+ for 1 to 1.5 h or longer in the presence of 0.25 mM Ca2+. 0.1 mM Co2+ had similar but weaker effects. These results indicate that the vibrational signals from the vibrating model are detected and processed by the lateral line system to elicit the spawning behavior. These are the first experimental evidences that the lateral line sense is involved in the communicational behavior of the fish.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00217373
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  • 3
    Electronic Resource
    Electronic Resource
    The biased intracellular accumulation of the β-subunit of salmon gonadotropin (GTH II) in the pituitary of rainbow trout Oncorhynchus mykiss, during gametogenesis (1995)
    Springer
    Cell & tissue research 279 (1995), S. 93-99 
    Details
    ISSN: 1432-0878
    Keywords: Pituitary gland ; Gonadotropin ; Subunits ; Gonadotropes ; Immunocytochemistry ; Immunoblotting ; Oncorhynchus mykiss (Teleostei)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Salmon gonadotropin (GTH II) is a heterodimeric glycoprotein hormone (α and IIβ subunits), serving as a maturational GTH, and is produced in a specific gonadotropic cell-type (GTH II-cells) containing small granules and large globules. In trout GTH II-cells, double immunolabeling for the α- and IIβ-subunits shows that colocalization of the α- and IIβ-immunolabeling is confined to the small granules, indicating storage of functional GTH II. On the other hand, α-immunolabeling is absent in the large globules, even though IIβ labeling is abundant throughout the period of seasonal gametogenesis. The α-specific antiserum recognizes the intact α-subunit as well as the reduced and deglycosylated α-subunits by immunoblotting. These results indicate that an accumulation of the IIβ-subunit is specifically generated in the large globules of these cells. In fact, with sexual maturity, the quantity of IIβ-subunits becomes elevated in the trout pituitary due to a marked increase in GTH II-cells containing many large globules. However, the derivation and function of the large globules and the fate of their contained IIβ-subunits remains unknown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00300695
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  • 4
    Electronic Resource
    Electronic Resource
    The biased intracellular accumulation of the β-subunit of salmon gonadotropin (GTH II) in the pituitary of rainbow trout Oncorhynchus mykiss, during gametogenesis (1994)
    Springer
    Cell & tissue research 279 (1994), S. 93-99 
    Details
    ISSN: 1432-0878
    Keywords: Key words: Pituitary gland ; Gonadotropin ; Subunits ; Gonadotropes ; Immunocytochemistry ; Immunoblotting ; Oncorhynchus mykiss (Teleostei)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. Salmon gonadotropin (GTH II) is a heterodimeric glycoprotein hormone (α and IIβ subunits), serving as a maturational GTH, and is produced in a specific gonadotropic cell-type (GTH II-cells) containing small granules and large globules. In trout GTH II-cells, double immunolabeling for the α- and IIβ-subunits shows that colocalization of the α- and IIβ-immunolabeling is confined to the small granules, indicating storage of functional GTH II. On the other hand, α-immunolabeling is absent in the large globules, even though IIβ-labeling is abundant throughout the period of seasonal gametogenesis. The α-specific antiserum recognizes the intact α-subunit as well as the reduced and deglycosylated α-subunits by immunoblotting. These results indicate that an accumulation of the IIβ-subunit is specifically generated in the large globules of these cells. In fact, with sexual maturity, the quantity of IIβ-subunits becomes elevated in the trout pituitary due to a marked increase in GTH II-cells containing many large globules. However, the derivation and function of the large globules and the fate of their contained IIβ-subunits remains unknown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004410050265
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