| Title: | Characterization of Male-Produced Aggregation Pheromone of the Bean Flower Thrips Megalurothrips sjostedti (Thysanoptera: Thripidae) |
| Author(s): | Niassy S; Tamiru A; Hamilton JGC; Kirk WDJ; Mumm R; Sims C; de Kogel WJ; Ekesi S; Maniania NK; Bandi K; Mitchell F; Subramanian S; |
| Address: | "International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya. School of Life Sciences, Keele University, Huxley Building, Staffordshire, ST5 5BG, UK. Infectious Disease Transmission and Biology Group, Department of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster, LA1 4YG, UK. Wageningen University & Research, P. O. Box 16, 6700AA, Wageningen, The Netherlands. International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya. ssubramania@icipe.org" |
| DOI: | 10.1007/s10886-019-01054-8 |
| ISSN/ISBN: | 1573-1561 (Electronic) 0098-0331 (Print) 0098-0331 (Linking) |
| Abstract: | "Aggregation of the bean flower thrips, Megalurothrips sjostedti (Trybom) (Thysanoptera: Thripidae), has been observed on cowpea, Vigna unguiculata (L.) Walp. To understand the mechanism underpinning this behavior, we studied the responses of M. sjostedti to headspace volatiles from conspecifics in a four-arm olfactometer. Both male and female M. sjostedti were attracted to male, but not to female odor. Gas chromatography/mass spectrometry (GC/MS) analyses revealed the presence of two distinct compounds in male M. sjostedti headspace, namely (R)-lavandulyl 3-methylbutanoate (major compound) and (R)-lavandulol (minor compound); by contrast, both compounds were only present in trace amounts in female headspace collections. A behavioral assay using synthetic compounds showed that male M. sjostedti was attracted to both (R)-lavandulyl 3-methylbutanoate and (R)-lavandulol, while females responded only to (R)-lavandulyl 3-methylbutanoate. This is the first report of a male-produced aggregation pheromone in the genus Megalurothrips. The bean flower thrips is the primary pest of cowpea, which is widely grown in sub-Saharan Africa. The attraction of male and female M. sjostedti to these compounds offers an opportunity to develop ecologically sustainable management methods for M. sjostedti in Africa" |
| Keywords: | "Acyclic Monoterpenes Animals Female Gas Chromatography-Mass Spectrometry Male Monoterpenes/metabolism Sex Attractants/*metabolism Sexual Behavior, Animal Thysanoptera/*metabolism/physiology Vigna/*parasitology Grain legumes Headspace analysis Megalurothri;" |
| Notes: | "MedlineNiassy, Saliou Tamiru, Amanuel Hamilton, James G C Kirk, William D J Mumm, Roland Sims, Cassie de Kogel, Willem Jan Ekesi, Sunday Maniania, Nguya K Bandi, Krishnakumari Mitchell, Fraser Subramanian, Sevgan eng AURG/108/2012/African Union Research Grant/ BB/P022391/1/Biotechnology and Biological Sciences Research Council/United Kingdom 2019/02/23 J Chem Ecol. 2019 Apr; 45(4):348-355. doi: 10.1007/s10886-019-01054-8. Epub 2019 Feb 21" |
