Sex-related perception of insect and plant volatiles in Lygocoris pabulinus

We recorded electroantennograms of male and female Lygocoris pabulinus antennae to 63 insect and plant volatiles. EAGs were between 100 and 500 μV. Overall, male EAGs were about twice the size of female EAGs. In both sexes, largest EAGs were recorded to (E)-2-hexenyl butanoate and (E)-2-hexen-1-ol....

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Bibliographic Details
Published in:Journal of chemical ecology 1999-10, Vol.25 (10), p.2357-2371
Main Authors: GROOT, A. T, TIMMER, R, GORT, G, LELYVELD, G. P, DRIJFHOUT, F. P, VAN BEEK, T. A, VISSER, J. H
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Autoecology
Biological and medical sciences
EPS
Esters
Females
Fundamental and applied biological sciences. Psychology
Insects
Instituut voor Plantenziektenkundig Onderzoek
Laboratorium voor Entomologie
Laboratorium voor Organische chemie
Laboratory for Organic Chemistry
Laboratory of Entomology
Lygocoris pabulinus
Miridae
Organic Chemistry
Organische Chemie
Plant Research International
Protozoa. Invertebrata
Research Institute for Plant Protection
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Summary:We recorded electroantennograms of male and female Lygocoris pabulinus antennae to 63 insect and plant volatiles. EAGs were between 100 and 500 μV. Overall, male EAGs were about twice the size of female EAGs. In both sexes, largest EAGs were recorded to (E)-2-hexenyl butanoate and (E)-2-hexen-1-ol. Response profiles were similar in both sexes. However, male antennae were more sensitive to a number of esters, especially the butanoates and pentanoates. Female antennae were more sensitive to nine of the 19 plant volatiles, i.e., to hexan-1-ol, heptan-1-ol, 1-octen-3-ol, 2-heptanone, (R)-carvone, linalool, geraniol, nerol, and methyl salicylate. Sexual differences in responses suggest that males are more sensitive to insect-produced pheromone-type compounds, whereas females are more sensitive to plant compounds for their orientation towards oviposition sites.[PUBLICATION ABSTRACT]
ISSN:0098-0331
1573-1561
DOI:10.1023/A:1020834226520