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Olfactory versus contact cues in host plant recognition of a monophagous chrysomelid beetle

Please always quote using this URN: urn:nbn:de:bvb:20-opus-49475
  • The importance of olfactory versus contact cues for host plant recognition was investigated in the tortoise beetle Cassida canaliculata Laich. (Coleoptera: Chrysomelidae), which is strictly monophagous on meadow sage. The reaction of adult beetles to olfactory and contact host cues was tested using three bioassays (locomotion compensator, six-chamber-olfactometer, stem arena') to account for different behavioral contexts. Bioassay-guided fractionation of plant extracts was elaborated to characterize the nature of contact stimuli. The beetlesThe importance of olfactory versus contact cues for host plant recognition was investigated in the tortoise beetle Cassida canaliculata Laich. (Coleoptera: Chrysomelidae), which is strictly monophagous on meadow sage. The reaction of adult beetles to olfactory and contact host cues was tested using three bioassays (locomotion compensator, six-chamber-olfactometer, stem arena') to account for different behavioral contexts. Bioassay-guided fractionation of plant extracts was elaborated to characterize the nature of contact stimuli. The beetles were only slightly attracted to odors from small amounts of leaf material. However, when contact cues were provided additionally, the beetles showed strong preferences for samples of their host plant over controls. Bioassay-guided fractionation led to isolation of at least two non-polar contact stimuli acting in concert that are sufficient for host plant identification in C. canaliculata.show moreshow less

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Metadaten
Author: Annette Heisswolf, Dirk Gabler, Elisabeth Obermaier, Caroline Müller
URN:urn:nbn:de:bvb:20-opus-49475
Document Type:Journal article
Faculties:Fakultät für Biologie / Theodor-Boveri-Institut für Biowissenschaften
Language:English
Year of Completion:2007
Source:In: Journal of Insect Behavior ( 2007) 20, 2, 247-266
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 59 Tiere (Zoologie) / 590 Tiere (Zoologie)
GND Keyword:Insekt; Verhalten
Tag:Locomotion compensator; bioassay-guided fractionation; host recognition; olfactometer; stem arena
Release Date:2010/08/03
Licence (German):License LogoDeutsches Urheberrecht