Constituents of Commiphora rostrata and some of their analogues as maize weevil, Sitophilus zeamais repellents
- 1 October 1992
- journal article
- research article
- Published by Springer Science and Business Media LLC in International Journal of Tropical Insect Science
- Vol. 13 (05), 679-683
- https://doi.org/10.1017/s174275840000789x
Abstract
The major alkanone constituents of the resin of Commiphora rostrata, 2-decanone and 2-undecanone, and a series of structural analogues were bioassayed for their repellency against the maize weevil, Sitophilus zeamais in olfactometric assays. All the aliphatic ketones and aldehydes showed comparable or greater activity than the synthetic commercial insect repellent N, N-diethyl toluamide (DEET). In the 2-alkanone series the C-8 and C-9 compounds demonstrated significantly higher activity than their shorter- and longer-chained congeners. Analogues differing in the relative positions of the carbonyl group, including aldehydes, showed a variable pattern of repellency. Alkanols appeared to be mildly attractive to the weevil. The results support our previous suggestion that the resin constituents may play an allomonal role in the ecosystem where the plant thrives. Les principaux constituents de la resin de Commiphora rostrata, 2-decanone et 2-undecanone, et une toute une serie des structures analogues furent essayé pour leur effet repellant contre Sitophilus zeamais. Tous les cetones aliphatiques et les aldehydes ont montré une activité plus importante que le repellant commercial N, N-diethyl toluamide (DEET). Dans les series du 2-alcanone, les substances C-8 et C-9 ont montré une activité significative par rapport aux chaînes congenères courtes et longues. Les analogues qui différent par la position relative de leur groupe carboxyl, y compris les aldehydes ont montré une image variable de repellance. Les alcohols apparaisent être attractive pour Sitophilus zeamais. Ces resultats supportent notre suggestion concernant les constituents de la resin qui peuvent jouer un rôle allomale sur l'ecosystèmes des plantes.Keywords
This publication has 10 references indexed in Scilit:
- 10.1007/BF00350369Published by Test accounts ,2011
- Volatile resin exudate from stem bark of Commiphora rostrata: Potential role in plant defencePhytochemistry, 1988
- Factors Affecting the Response of the Maize Weevil, Sitophilus zeamais (Coleoptera: Curculionidae), to Its Aggregation Pheromone 1Environmental Entomology, 1986
- (R *,S *)-5-hydroxy-4-methyl-3-heptanone male-produced aggregation pheromone ofSitophilus oryzae (L.) andS. zeamais motschJournal of Chemical Ecology, 1985
- THE ROLE OF GLANDULAR TRICHOMES IN THE RESISTANCE OF LYCOPERSICON HIRSUTUM F. GLABRATUM TO HELIOTHIS ZEAEntomologia Experimentalis et Applicata, 1983
- Toxicity studies of analogs of 2-tridecanone, a naturally occurring toxicant from a wild tomatoJournal of Chemical Ecology, 1982
- 2-Tridecanone: A Naturally Occurring Insecticide from the Wild Tomato Lycopersicon hirsutum f. glabratumScience, 1980
- Comparative study of the pheromones emitted by workers of the ants Myrmica rubra and Myrmica scabrinodisJournal of Insect Physiology, 1978
- Chemical Ecology: Studies from East AfricaScience, 1978
- The alarm-defence system of the ant Acanthomyops clavigerJournal of Insect Physiology, 1968