Characterization of Male-Produced Aggregation Pheromone of the Bean Flower Thrips Megalurothrips sjostedti (Thysanoptera: Thripidae)
| Autor: | Krishnakumari Bandi, James G. C. Hamilton, William D. J. Kirk, N.K. Maniania, Sunday Ekesi, Cassie Sims, W.J. de Kogel, Roland Mumm, Fraser Mitchell, Amanuel Tamiru, Saliou Niassy, Sevgan Subramanian |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Male
0106 biological sciences Grain legumes Acyclic Monoterpenes 01 natural sciences Biochemistry Megalurothrips sjostedti Gas Chromatography-Mass Spectrometry Article Olfactometer bioassay Vigna Sexual Behavior Animal Biointeractions and Plant Health Headspace analysis Animals Sex Attractants Ecology Evolution Behavior and Systematics biology Thrips Thysanoptera food and beverages Thrips pheromone General Medicine Thripidae biology.organism_classification Attraction 010602 entomology Horticulture Olfactometer Odor Monoterpenes BIOS Applied Metabolic Systems Pheromone Female PEST analysis 010606 plant biology & botany |
| Zdroj: | Journal of Chemical Ecology 45 (2019) Journal of Chemical Ecology Journal of Chemical Ecology, 45, 348-355 |
| ISSN: | 0098-0331 1573-1561 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink