Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Bile acids as potential pheromones in pintado catfish Pseudoplatystoma corruscans (Spix & Agassiz, 1829): eletrophysiological and behavioral studies

Texto completo
Autor(es):
Giaquinto, Perclia Cardoso [1, 2, 3] ; Barreto, Rodrigo Egydio [1, 2, 3] ; Volpato, Gilson Luiz [1, 2, 3] ; Fernandes-de-Castilho, Marisa [1, 4] ; Goncalves-de-Freitas, Eliane [1, 3, 5]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] RECAW, London - England
[2] UNESP, IBB, Inst Biociencias, Dept Fisiol, BR-18618000 Botucatu, SP - Brazil
[3] CAUNESP, BR-14884900 Jaboticabal, SP - Brazil
[4] Univ Fed Parana, Dept Fisiol, Set Ciencias Biol, BR-8153197 Curitiba, PR - Brazil
[5] UNESP, Inst Biociencias, Letras & Ciencias Exatas, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: Neotropical Ichthyology; v. 13, n. 1, p. 237-243, JAN-MAR 2015.
Citações Web of Science: 2
Resumo

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. (AU)

Processo FAPESP: 98/03036-4 - Comunicação química no pintado, Pseudoplastystoma coruscans
Beneficiário:Percilia Cardoso Giaquinto
Linha de fomento: Bolsas no Brasil - Doutorado