To Smell you Better: Prior Food Deprivation Increases Herbivore Insect Responsiveness to Host Plant Odor Cues
| Autor: | Martin Videla, María Teresa Defagó, Graciela Valladares |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
media_common.quotation_subject Zoology Insect Generalist and specialist species 010603 evolutionary biology 01 natural sciences HERBIVORE Ciencias Biológicas Xanthogaleruca luteola Ecology Evolution Behavior and Systematics media_common Herbivore ODOR CUES biology Ecology Host (biology) fungi food and beverages OLFACTOMETER Bioquímica y Biología Molecular biology.organism_classification 010602 entomology Olfactometer Odor Animal ecology Insect Science FEEDING BEHAVIOR CIENCIAS NATURALES Y EXACTAS FOOD DEPRIVATION |
| Zdroj: | Journal of Insect Behavior. 29:527-534 |
| ISSN: | 1572-8889 0892-7553 |
| DOI: | 10.1007/s10905-016-9577-x |
| Popis: | Hunger plays a crucial role in insect feeding behavior, however food deprivation is rarely considered when insect responses to plant host and related chemical stimuli are investigated. Here we assessed, by means of experiments with Y-tube olfactometer, the effect of food deprivation time on the response of a specialist (Xanthogaleruca luteola) and a generalist (Diabrotica speciosa) herbivore beetle species (Coleoptera: Chrysomelidae) to odor cues of their respective host plants. Increasing food deprivation periods enhanced responses to host plant odor in both species, with insects remaining for longer in the olfactometer arm carrying plant odor than in the control, moving less frequently between olfactometer arms, and being more efficient in moving towards the plant odor as their first choice. These trends were less significant in the generalist species, which also required a longer fasting threshold (48 h) in comparison with the specialist (8 h). Our results, showing that prior food deprivation time can influence insect herbivore responsiveness to plant stimuli and that those effects may vary between species, highlight the risk of neglecting this factor in studies involving insect responses to host or chemical stimuli. Fil: Defagó, María Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Videla, Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Valladares, Graciela Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina |
| Databáze: | OpenAIRE |
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