Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 301671
Title Peripheral odour perception by adult aphid forms with the same genotype but different host-plant preferences
Author(s) Hardie, J.; Visser, J.H.; Piron, P.G.M.
Source Journal of Insect Physiology 41 (1995)1. - ISSN 0022-1910 - p. 91 - 97.
Department(s) Research Institute for Plant Protection
Publication type Refereed Article in a scientific journal
Publication year 1995
Abstract As adults, the summer (alate virginopara) and autumn (gynopara) winged forms of the black bean aphid, Aphis fabae, utilise different host plants, the bean Vicia faba, and the spindle tree, Euonymus europaeus, respectively. Electroantennograms (EAGs) were recorded from the antennae of these aphid forms, reared from a single clone, to thirty five plant volatiles and to paraffin oil extracts from leaves of the two host plants. The EAG peak responses were normalised against the adjacent responses to a standard stimulus ((E)-2-hexenal at log 2 dilution). The comparison of different parameters of the EAG responses, i.e. peak, rise and decay, reveals that peripheral olfactory perception of most volatiles is not significantly different between these two forms. In addition, the responses of adult wingless virginoparae to thirteen of the plant volatiles show, with one exception, similar peripheral perception. The results indicate that any odour discrimination between the two alternative host plants by their respective colonisers is not perceived at the level of the peripheral olfactory receptors. The EAG response profile of A. fabae differs from that of the vetch aphid, Megoura viciae, which also colonises bean.
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