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  • 1
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    Drosophila Gr5a encodes a taste receptor tuned to trehalose (2003)
    National Academy of Sciences
    Details
    Publication Date: 2003-10-01
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 2
    Electronic Resource
    Electronic Resource
    Neuroreceptor mechanisms in insect gustation: a pharmacological approach
    Amsterdam : Elsevier
    Journal of Insect Physiology 40 (1994), S. 913-931 
    Details
    ISSN: 0022-1910
    Keywords: Chemosensory transduction ; Contact chemoreception ; GABA ; Gustatory cell ; Inhibitory amino acid receptors ; Sensilla ; Taste
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0022-1910(94)90130-9
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Modeling the insect feeding decision system: A new approach utilizing fuzzy system theory (1996)
    Springer
    Entomologia experimentalis et applicata 80 (1996), S. 109-112 
    Details
    ISSN: 1570-7458
    Keywords: computer model ; feeding behavior ; sensory coding ; fuzzy logic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Conclusions Preliminary tests of this model have been successful using as inputs responses to pure chemicals. When the trained model is presented with computer-synthesized spike trains as inputs, it predicts behavioral results that are plausible. Future tests will employ more complex stimuli, such as binary and trinary mixtures of compounds and natural stimuli from host and non-host plants. The use of this operational computer model represents a powerful new approach to the currently intractable problem of deciphering complex, acrossfiber sensory codes. This approach provides a more comprehensive and objective assessment of the data than do the current alternatives, such as analysis of individual records by trained experts. In addition, the model can assimilate data from any number of inputs, which is well beyond the abilities of individual investigators compiling data manually. Finally, the model is dynamic and can be updated with new data, and is sufficiently general to be used for any species or comparison across species. A model trained with responses to plants ranging from highly acceptable host plants to highly deterrent non-host plants would be capable of simulating the insect's entire repertoire of feeding decisions. Because the model can divulge the rules by which it made a decision, inspection of these rules will permit identification of which sensory inputs and input patterns were the most important for that decision, thereby providing a crucial insight into complex across-fiber sensory coding. In addition, probing the model with synthesized spike trains as inputs will permit understanding of input/output relationships over wider ranges or in more combinations than would be possible to test experimentally, and thus would be helpful in predicting behavioral responses to multi-component mixtures. Modeling acceptance or rejection, and thereby determining the operative rules associated with these behaviors, may supply a rational basis for the development of baits and antifeedants and provide direction for genetic engineering of semiochemical in plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00194737
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  • 4
    Electronic Resource
    Electronic Resource
    Dietary selection in adultLocusta migratoria (1990)
    Springer
    Entomologia experimentalis et applicata 56 (1990), S. 47-60 
    Details
    ISSN: 1570-7458
    Keywords: Locusta migratoria ; locust ; self-selection ; feeding behaviour ; nutritional compensation ; adult development
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé La sélection des aliments a été suivie pendant les 15 premiers jours de vie imaginale des mâles et des femelles deLocusta migratoria L. Les insectes recevaient 2 régimes alimentaires, l'un contentant 10, 20 ou 28% de protéines, mais pas de carbohydrates assimilables, l'autre 10, 20 ou 28% de carbohydrates assimilables, mais pas de protéines. Les quantités consommées, le détail de la prise de nourriture, et les croissances somatique et reproductive ont été mesurés. Malheureusement, ces régimes artificiels n'ont pas permis le développement ovarien des femelles. Cependant, il y a des preuves convaincantes que les insectes ont contrôlé leur apport en protéines et en carbohydrates pendant la phase de croissance somatique par une sélection alimentaire et une modification de la consommation.
    Notes: Abstract Dietary selection was investigated during the first 15 days of adult life in male and femaleLocusta migratoria L. Insects were provided with two artificial diets, one containing 10, 20 or 28% protein but no digestible carbohydrate, the other 10, 20 or 28% digestible carbohydrate but no protein. Amounts eaten, detailed feeding patterns and somatic and reproductive growth were measured. Unfortunately the artificial diets did not support female reproductive development. Nevertheless, there was convincing evidence that insects regulated both protein and carbohydrate intake during the somatic growth phase by dietary selection and altered consumption.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00579614
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  • 5
    Electronic Resource
    Electronic Resource
    Changes in chemoreceptor sensitivity in relation to dietary selection by adult Locusta migratoria (1990)
    Springer
    Entomologia experimentalis et applicata 56 (1990), S. 259-268 
    Details
    ISSN: 1570-7458
    Keywords: Locusta migratoria ; chemoreceptors ; sucrose ; amino acids ; age effects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Pendant la croissance de L. migratoria L. les réactions aux acides aminés et aux sucres des sensilles chimiques des palpes maxillaires changent. Ces changements relatifs de la sensibilité chimique à ces deux aliments correspondent aux modifications dans l'ingestion de protéines et d'hydrates de carbone par cet insecte. La diminution de la réponse aux acides aminés est liée à la fois au nombre de sensilles qui réagissent et à leur taux de réaction. La sensibilité des sensilles au sucrose varie moins profondément et implique uniquement des modifications du nombre de sensilles réagissant. Nous suggérons que des variations de la teneur en éléments nutritifs de l'haemolymphe, dues à des modifications de la demande en protéines et en glucides nécessaires à la croissance, influent sur la sensibilité gustative.
    Notes: Abstract During somatic growth in adult Locusta migratoria L. there are variations in the responsiveness of chemosensilla on the maxillary palps. Relative changes in chemosensitivity to amino acids and sucrose are consistent with relative changes in protein and carbohydrate ingestion. There is a decline throughout the somatic growth phase in the proportion of sensilla responding to stimulation. In those sensilla which respond, there is a decline in the firing rate to amino acids, while sucrose responsiveness declines to a lesser degree. We suggest that variations in the levels of nutrients in the storage tissues, especially the haemolymph, arising from changes in the demand for protein and carbohydrate for growth, directly or indirectly, influence gustatory sensitivity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00163697
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