Discrimination of bile acids by the rainbow trout olfactory system: Evidence as potential pheromone
Biol. Res
;
41(1): 33-42, 2008. ilus, tab
Article
in English
| LILACS
| ID: lil-490630
ABSTRACT
Electro-olfactogram recording was used to determine whether the olfactory epithelium of adult rainbow trout is specifically sensitive to bile acids, some of which have been hypothesized to function as pheromones. Of 38 bile acids that had been pre-screened for olfactory activity, 6 were selected. The rainbow trout-specific bile acids, taurocholic acid (TCA), and taurolithocholic acid 3-sulfate (TLS) were the most potent compounds tested. TLS had a distinctive dose-response curve. Cross-adaptation experiments demonstrated that sensitivity to bile acids is attributable to at least 3 independent classes of olfactory receptor sites. Our data suggest that bile acids are discriminated by olfaction in rainbow trout, supporting the possibility that these compounds function as pheromones.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Pheromones
/
Smell
/
Bile Acids and Salts
/
Olfactory Mucosa
/
Oncorhynchus mykiss
Type of study:
Prognostic study
Limits:
Animals
Language:
English
Journal:
Biol. Res
Journal subject:
Biology
Year:
2008
Type:
Article
/
Project document
Affiliation country:
Brazil
/
Canada
Institution/Affiliation country:
Canada Department of Fisheries and Oceans/CA
/
Universidade Estadual Paulista/BR
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