Artículos de revistas
Bile acids as potential pheromones in pintado catfish Pseudoplatystoma corruscans (Spix &Agassiz, 1829): eletrophysiological and behavioral studies
Fecha
2015-01-01Registro en:
Neotropical Ichthyology, v. 13, n. 1, p. 237-243, 2015.
1679-6225
10.1590/1982-0224-20140013
S1679-62252015000100237
WOS:000353629200022
S1679-62252015000100237.pdf
3363114201357959
5986784435727980
0000-0003-4591-4415
Autor
Research Center on Animal Welfare (RECAW)
Universidade Estadual Paulista (Unesp)
Universidade Federal do Parana (UFPR)
Institución
Resumen
Bile acids are potent olfactory and gustatory stimulants for fish. Electro-olfactogram recording was used to test whether the olfactory epithelium of pintado catfish Pseudoplatystoma corruscans is specifically sensitive to bile acids, some of which have been hypothesized to function as pheromones. Five out of 30 bile acids that had been pre-screened for olfactory activity in fish were selected. Cross-adaptation experiments demonstrated that sensitivity to bile acids is attributable to at least 3 independent classes of olfactory receptor sites. The taurocholic acid (TCA) and taurochenodeoxycholic acid (TCD) were the most potent compounds. By using avoidance/preference tests, we found that Pseudoplatystoma corruscans prefers water containing TCA. Bile acids are discriminated by olfactory epithelium of pintado, supporting that these compounds could function as pheromones.