caa a22 4500 606230149 CHVBK 20210128101212.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s10695-015-0054-9 doi (NATIONALLICENCE)springer-10.1007/s10695-015-0054-9 Analysis of olfactory sensitivity in rainbow trout ( Oncorhynchus mykiss ) reveals their ability to detect lactic acid, pyruvic acid and four B vitamins [Elektronische Daten] [Joaquín Valdés, Jesús Olivares, Daniela Ponce, Oliver Schmachtenberg] Salmonid fishes like the rainbow trout Oncorhynchus mykiss have a highly developed olfactory sense that allows them to perceive some odorants at very low concentrations, such as certain amino acids and bile salts. Previous behavioral and electrophysiological studies in salmonids have shown strong responses to human skin odor. Because this stimulus represents a complex and heterogeneous mixture of components, we sought to determine which odorants contribute to the sensitive detection of human skin odor by salmonids. In vivo electroolfactogram recordings in O. mykiss revealed lactic acid, pyruvic acid and two B vitamins, thiamine and riboflavin, as novel, potent odorants which triggered responses at nanomolar concentrations. Two more B vitamins, nicotinic and pantothenic acid, were detected at micromolar concentrations. These compounds share important roles in cellular energy metabolism, supporting an original role in food search and feeding behavior of this species and most likely other fishes. The olfactory detection of B vitamins by salmonids represents a new paradigm in chemosensation, warranting further investigation in other teleosts. Springer Science+Business Media Dordrecht, 2015 Fish nationallicence Olfaction nationallicence Smell nationallicence Electroolfactogram nationallicence Odorants nationallicence Teleosts nationallicence Valdés Joaquín Centro Interdisciplinario de Neurociencia de Valparaíso (CINV), Facultad de Ciencias, Universidad de Valparaíso, Avda. Gran Bretaña 1111, Playa Ancha, 2360102, Valparaíso, Chile aut Olivares Jesús Centro Interdisciplinario de Neurociencia de Valparaíso (CINV), Facultad de Ciencias, Universidad de Valparaíso, Avda. Gran Bretaña 1111, Playa Ancha, 2360102, Valparaíso, Chile aut Ponce Daniela Centro Interdisciplinario de Neurociencia de Valparaíso (CINV), Facultad de Ciencias, Universidad de Valparaíso, Avda. Gran Bretaña 1111, Playa Ancha, 2360102, Valparaíso, Chile aut Schmachtenberg Oliver Centro Interdisciplinario de Neurociencia de Valparaíso (CINV), Facultad de Ciencias, Universidad de Valparaíso, Avda. Gran Bretaña 1111, Playa Ancha, 2360102, Valparaíso, Chile aut Fish Physiology and Biochemistry Springer Netherlands 41/4(2015-08-01), 879-885 0920-1742 41:4<879 2015 41 10695 https://doi.org/10.1007/s10695-015-0054-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10695-015-0054-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Valdés Joaquín Centro Interdisciplinario de Neurociencia de Valparaíso (CINV), Facultad de Ciencias, Universidad de Valparaíso, Avda. Gran Bretaña 1111, Playa Ancha, 2360102, Valparaíso, Chile aut NATIONALLICENCE 700 1- Olivares Jesús Centro Interdisciplinario de Neurociencia de Valparaíso (CINV), Facultad de Ciencias, Universidad de Valparaíso, Avda. Gran Bretaña 1111, Playa Ancha, 2360102, Valparaíso, Chile aut NATIONALLICENCE 700 1- Ponce Daniela Centro Interdisciplinario de Neurociencia de Valparaíso (CINV), Facultad de Ciencias, Universidad de Valparaíso, Avda. Gran Bretaña 1111, Playa Ancha, 2360102, Valparaíso, Chile aut NATIONALLICENCE 700 1- Schmachtenberg Oliver Centro Interdisciplinario de Neurociencia de Valparaíso (CINV), Facultad de Ciencias, Universidad de Valparaíso, Avda. Gran Bretaña 1111, Playa Ancha, 2360102, Valparaíso, Chile aut NATIONALLICENCE 773 0- Fish Physiology and Biochemistry Springer Netherlands 41/4(2015-08-01), 879-885 0920-1742 41:4<879 2015 41 10695