Learned olfactory discrimination versus innate taste responses to amino acids in channel catfish (Ictalurus punctatus)

Valentinčič, Tine; Wegert, Sandra; Caprio, John

doi:10.1016/0031-9384(94)90072-8

Cited by 46 publications

(28 citation statements)

References 34 publications

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“…The capacity to recognise odour in the aquatic environment has been evaluated for marine and freshwater species (Chivers and Smith 1993;Saglio and Blanc 1993;Valentinc¸ic¸et al 1994). In accordance with the results of the present study, a rejection of the extract-coated realistic models exists even before tasting by both fish populations.…”

Section: Discussionsupporting

confidence: 86%

Elysia timida (Risso, 1818) (Gastropoda, Opisthobranchia): relationship and feeding deterrence to a potential predator on the south-western Mediterranean coast

2002

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Elysia timida (Risso, 1818) (Gastropoda, Opisthobranchia): relationship and feeding deterrence to a potential predator on the south-western Mediterranean coast Abstract The relationship between the sacoglossan Elysia timida and the ornate wrasse Thalassoma pavo was studied in two laboratory experiments using artificial models. A feeding-preference experiment was conducted to determine whether mollusc extract deterred feeding by T. pavo, by using a ''realistic'' mollusc model (imitating the colour pattern of E. timida) coated with mollusc extract, and a reference model (without imitation or extract), and fishes collected from two locations. It was observed that fish approached, attacked and ate more reference models than mollusc models. A second feeding-preference experiment was designed with four different coloured models: ''realistic'' (W), green (G), red (R) and chequered (S) pattern. Both fish populations clearly rejected the S model, and differed in their colour preferences. Although both populations seemed to prefer the R and G models equally, the W model was clearly rejected by the fish that coexist with the mollusc at one site (Mazarro´n), but was not rejected by the other population of fish which does not coexist with it (Cabo de Palos). Mazarro´n fishes would identify the W model with the presence of a toxic compound during their coexistence, and therefore avoid attacking conspicuously coloured E. timida models as a response to their visual signals. Therefore, it was concluded that extract of E. timida is a deterrent for T. pavo, and its effect is sufficiently noxious that the fish tend to avoid it, so that the ability of the fishes to learn to recognise colours and identify certain colour patterns associated with obnoxious prey provides the molluscs the opportunity to survive by exhibiting a conspicuous coloration.

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Section: Discussionsupporting

confidence: 86%

Elysia timida (Risso, 1818) (Gastropoda, Opisthobranchia): relationship and feeding deterrence to a potential predator on the south-western Mediterranean coast

2002

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“…Amino acids, in general, play a role in feeding responses in fishes. Whether they move toward or away from a given amino acid depends on the concentration, the species of fish, and perhaps on whether it is a learned response (Valentincic et al, 1994). The developmental onset of behavioral responses to amino acids in fishes is not well characterized, although it has recently been shown that juvenile zebrafish respond to amino acid mixtures starting on the fourth day of development (Lindsay and Vogt, 2004).…”

Section: Zebrafish Behavioral Responses To Odorantsmentioning

confidence: 99%

Isolation and characterization of the laure olfactory behavioral mutant in the zebrafish, Danio rerio

Vitebsky

Reyes

Sanderson

et al. 2005

Developmental Dynamics

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To initiate a genetic analysis of olfactory development and function in the zebrafish, Danio rerio, we developed a behavioral genetic screen for mutations affecting the olfactory sensory system. First, we characterized olfactory responses of wild-type zebrafish to various odors. We found that 3-day-old juvenile zebrafish reacted to the amino acid L-cysteine with an aversive behavioral response. We isolated one mutant, laure (lre), which showed no aversive behavioral response to L-cysteine at 3 days of development, and carried out a preliminary characterization of this mutant's defects. We found that lre mutant fish were also defective in their response to L-serine and L-alanine, but not to taurocholic acid, as young adults. In addition, lre mutant fish had significantly fewer primary olfactory sensory neurons than normal, and the axons of these neurons did not form the characteristic axon termination pattern in the developing olfactory bulb. Nevertheless, the olfactory epithelium of lre mutant fish showed normal or near normal electrophysiological responses to several odorants. Our data suggest that the behavioral defects observed in the lre mutant result from the disruption of the developing olfactory sensory neurons and their axonal connections within the olfactory bulb. The isolation of the lre mutant shows that our behavior-based screen represents a viable approach for carrying out a genetic dissection of olfactory behaviors in this vertebrate model system. Developmental Dynamics 234:229 -242, 2005.

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“…For example, in zebrafish amino acid-induced response patterns are significantly different for all amino acids and even for different concentrations of a single amino acid [35]. Studies using goldfish and catfish have shown some degree of behavioral discrimination between amino acids [60,61]; rats can distinguish between the structurally related propionic acid and acetic acid [59], and humans have partial success in distinguishing different functional groups as well as different chain lengths in homologous series of aliphatic compounds [62,63]. However, clearly more work has to be done at the behavioral level to address this question in vertebrates.…”

Section: Behavioral Relevance Of Spatial Mapsmentioning

confidence: 99%

Odor maps in the brain: Spatial aspects of odor representation in sensory surface and olfactory bulb

Korsching¹

2001

CMLS, Cell. Mol. Life Sci.

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The olfactory sense detects and distinguishes a multitude of different odors. Recent progress in molecular as well as physiological approaches has elucidated basic principles of neuronal encoding of odorants, common to insects and vertebrates. The construction of neuronal representations for odors begins with the task of mapping the multidimensional odor space onto the two-dimensional sensory surface, and subsequently onto the olfactory bulb or antennal lobe. A distributed expression of odorant receptors, albeit restricted to subregions of the sensory surface (large, intermediate or small for zebrafish, mouse or drosophila, respectively), ensures a robust representation, insensitive to mechanical insult. Olfactory receptor neurons expressing the same odorant receptors converge to form a receptotopic map in the olfactory bulb or antennal lobe. The emerging coding principle is a chemotopic representation of odorants at the first brain level, realized either as combinatorial or as monospecific representation, depending on the odorant.

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Learned olfactory discrimination versus innate taste responses to amino acids in channel catfish (Ictalurus punctatus)

Cited by 46 publications

References 34 publications

Elysia timida (Risso, 1818) (Gastropoda, Opisthobranchia): relationship and feeding deterrence to a potential predator on the south-western Mediterranean coast

Elysia timida (Risso, 1818) (Gastropoda, Opisthobranchia): relationship and feeding deterrence to a potential predator on the south-western Mediterranean coast

Isolation and characterization of the laure olfactory behavioral mutant in the zebrafish, Danio rerio

Odor maps in the brain: Spatial aspects of odor representation in sensory surface and olfactory bulb

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