...Sara Comesaña; Marta Conde-Sieira; Cristina Velasco; José L. Soengas; Sofia Morais ABSTRACT To assess the putative role of taste and pre-absorptive sensing of amino acids in food intake control in fish, we carried out an oral administration with l -leucine, l -valine, l -proline or l -glutamic acid...

... of their behavioral impact on Drosophila melanogaster larvae. Rhodiola rosea root samples have an attractive smell and taste to the larvae, and exert a rewarding effect. This rewarding effect was also observed for R. rosea root extracts, and did not require activity of dopamine neurons that mediate known rewards...

...Yu-Chieh David Chen; Sameera Ahmad; Kush Amin; Anupama Dahanukar ABSTRACT Taste is essential for animals to evaluate food quality and make important decisions about food choice and intake. How complex brains process sensory information to produce behavior is an essential question in the field...

...Carolina E. Reisenman; Kristin Scott ABSTRACT Insects use multiple sensory modalities when searching for and accepting a food source, in particular odor and taste cues. Food-derived odorants are generally involved in mediating long- and short-range attraction. Taste cues, in contrast, act directly...

... 2012 © 2013. Published by The Company of Biologists Ltd 2013 learning olfaction taste odour intensity Drosophila Stimuli can differ in kind and/or intensity. At the sensory level, stimulus kind is defined by the type of receptor activated and its connectivity, while the level...

.... These flies ingested amino acids even when they were replete with glucose. The proboscis extension reflex to particular amino acids was induced only in amino-acid-deprived flies. Our findings indicate that the sensitivity of labellar taste cells to amino acids may change when flies are deficient in amino acid...

... response to sugars is to mask the taste of noxious compounds, which abound in host plants of M. sexta . We compared 10 s biting responses to water with those to mixtures of a noxious compound [caffeine (Caf) or aristolochic acid (AA)] and various combinations of sugars [i.e. sucrose (Suc), glucose (Glu...

...S. H. Rolen; J. Caprio SUMMARY Bile salts are known olfactory stimuli for teleosts, but only a single report has indicated that the taste system of a fish was sensitive to this class of stimuli. Here, gustatory responses of the channel catfish, Ictalurus punctatus , to four bile salts that included...

.... This defect in food intake regulation is partly based on the action of Takeout on taste neurons, because the sensitivity of to 1 gustatory neurons to sugars does not increase after starvation, as in wild-type neurons. This lack of regulation is also evident at the locomotor activity, which normally increases...

... conditioning of salivation in an insect. * Author for correspondence (e-mail: makoto@biology.tohoku.ac.jp ) 20 12 2005 © The Company of Biologists Limited 2006 2006 learning memory olfaction taste salivary neurones insect Pavlov reported classical conditioning...

... in this simple and genetically easy-to-manipulate experimental system. * Author for correspondence (e-mail: bertram.gerber@biozentrum.uni-wuerzburg.de ) 23 9 2003 © The Company of Biologists Limited 2004 2004 Drosophila larva vision learning taste Associative learning...

... for Manduca larvae is the steroidal glycoside, indioside D. Two pairs of galeal taste sensilla, the lateral and medial sensilla styloconica, are both necessary and sufficient for the feeding preferences of host-restricted larvae. We conducted electrophysiological tip recordings from sensilla of solanaceous...

... could be fitted to two Lorentzian components. At present, the K + secretory current cannot be localized to taste cells or other cells that might be associated with the secretion of saliva or mucus. Nonetheless, the resulting increase in [K + ] in fluid bathing the mucosal surface of the tongue could...

...John I. Glendinning; Sonya Ensslen; Michal E. Eisenberg; Phoebe Weiskopf ABSTRACT We studied exposure-induced sensitivity changes in an identified taste cell from Manduca sexta , a herbivorous caterpillar. This taste cell occurs within the lateral styloconic sensillum and responds selectively...

... chemoreceptors in this rapid rejection response. First, all mouthpart chemoreceptors were ablated from the larvae, and they were then subjected to feeding tests with diets containing either nicotine or a compound (caffeine) that is known to stimulate deterrent taste receptors in M. sexta . Whereas the ablations...

... are grateful to C. Zhang for technical assistance. References Avenet , P. and Lindemann , B. ( 1987 ). Patch-clamp study of isolated taste receptor cells of the frog . J. Membr. Biol . 97 , 223 – 240 . 10.1007/BF01869225 Beidler , L. M. ( 1971 ). Taste receptor...

... in the responsiveness of taste receptors on the mouthparts. Levels of free amino acids in the haemolymph affect the responsiveness of maxillary gustatory receptors to stimulation by amino acids. The mechanisms mediating this response are investigated. Sectioning the maxillary nerve does not prevent an injection...

... codes discussed in the literature. 11 1 1991 © 1991 by Company of Biologists 1991 Leptinotarsa Colorado beetle gustation gustatory coding feeding behaviour host niant selection host plant recognition taste The sense of taste can be pivotal in host recognition...

... as information progresses through the taste system from the first central relay in the brainstem, the nucleus of the solitary tract, via the thalamus to the primary taste cortex in the frontal operculum and insula to reach a secondary cortical taste area in the caudolateral orbitofrontal cortex. Feeding monkeys...