Geranyllinalool (Diterpene Alcohol) |
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| Authors: | Michèle Lemaire Patricia Nagnan Jean -Luc Clement Catherine Lange Laurent Peru Jean -Jacques Basselier |
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| Affiliation: | (1) Museum Gabriel Foucher, Parc Saint-Paul, 18000 Bourges, France;(2) Laboratoire des Méditeurs Chimiques, INRA, Domaine de Brouessy, 78114 Magny-les-Hameaux, France;(3) CNRS, UPR 38, 31 chemin Joseph Aiguier, 13402 Marseille cedex 9, France;(4) Laboratoire de Chimie Organique Structurale CNRS, UA 551, Université Pierre et Marie Curie, 4 place Jussieu, 75006 Paris, France;(5) Museum d'Histoire Naturelle, 2 rue Marcel Proust, 45000 Orléans, France |
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| Abstract: | Geranyllinalool is an insecticidal component of pine wood and of the defensive secretion ofReticulitermes species. Lethal doses (LD50) were calculated for termites and various ant species. Termite workers were very resistant (10,000 ppm). Ant resistance varies among species according to their trophic strategy and attack mode. The geranyllinalool acts as a natural insecticide against some ant predators (LD50=6 ppm), which use raid or chemical crypsis to invade termite nests. In contrast, predators laying the venom on the cuticle of their termite prey were very resistant (10,000 ppm). Generally, ants acting as space competitors could detoxify the quantity emitted by one termite soldier (18 ppm). |
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| Keywords: | Geranyllinalool toxicity Isoptera Rhinotermitidae Reticulitermes soldier Pinus ants predators competitors |
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