Multichemical defense of plant bug Hotea gambiae (Westwood) (Heteroptera Scutelleridae):(E)-2-hexenol from abdominal gland in adults

Hamilton, J. G.C. and Gough, A. J.E. and Staddon, B. W. and Games, D. E. (1985) Multichemical defense of plant bug Hotea gambiae (Westwood) (Heteroptera Scutelleridae):(E)-2-hexenol from abdominal gland in adults. Journal of Chemical Ecology, 11 (10). pp. 1399-1409. ISSN 0098-0331

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Abstract

The occurrence in Hotea gambia adults of a sexual dimorphism in the divided dorsal abdominal scent gland (dg 1)is reported. Counts made of ducted secretory units indicate that female dg 1 regresses at the end of larval development, unlike male dg 1 which undergoes no regression. Other dorsal abdominal scent glands (dg 2, dg 3) which function in the larvae cease to function during the imaginai moult. From gas chromatographic, mass spectrometric and [1H]NMR data, the identity of the secretion from male adult dg 1 was established as virtually pure (E)-2-hexenol (a 100-mg mature male adult contains 0.5-1 μl of secretion). 2-Hexenol was also found in the reduced female adult dg 1. In the sexually monomorphic metathoracic scent gland, (E)-2-alkenals (C6, C8) and (E)-4-oxohex-2-enal, together with monoterpenes (β-pinene, limonene) but not 2-hexenol, were identified. The vapor of (E)-2-hexenol is repellent to both sexes of Hotea adults and toxic to blowfly (Calliphora) eggs.

Item Type: Journal Article
Journal or Publication Title: Journal of Chemical Ecology
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/1300/1303
Subjects:
ID Code: 134447
Deposited By: ep_importer_pure
Deposited On: 22 Jun 2019 08:53
Refereed?: Yes
Published?: Published
Last Modified: 30 Sep 2019 21:33
URI: https://eprints.lancs.ac.uk/id/eprint/134447

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