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Characterization of Male-Produced Aggregation Pheromone of the Bean Flower Thrips Megalurothrips sjostedti (Thysanoptera: Thripidae)

Niassy, Saliou ; Tamiru, Amanuel ; Hamilton, James G. C. ; Kirk, William D. J. ; Mumm, Roland ; Sims, Cassie LU ; Jan de Kogel, Willem ; Ekesi, Sunday ; Maniania, Nguya K. and Bandi, Krishnakumari , et al. (2019) In Journal of Chemical Ecology 45. p.348-355
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... (More)
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. (Less)
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publishing date
type
Contribution to journal
publication status
published
keywords
Thrips pheromone, Headspace analysis, Olfactometer bioassy
in
Journal of Chemical Ecology
volume
45
pages
348 - 355
publisher
Springer
external identifiers
  • scopus:85061916804
ISSN
1573-1561
DOI
10.1007/s10886-019-01054-8
language
English
LU publication?
no
id
02f80a45-a5a6-4800-9b68-4742228dcde4
date added to LUP
2022-04-03 22:40:11
date last changed
2022-04-27 20:05:58
@article{02f80a45-a5a6-4800-9b68-4742228dcde4,
  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<br/>the responses of M. sjostedti to headspace volatiles from conspecifics in a four-arm olfactometer. Both male and<br/>female M. sjostedti were attracted to male, but not to female odor. Gas chromatography/mass spectrometry (GC/<br/>MS) analyses revealed the presence of two distinct compounds in male M. sjostedti headspace, namely (R)-lavandulyl<br/>3-methylbutanoate (major compound) and (R)-lavandulol (minor compound); by contrast, both compounds were only<br/>present in trace amounts in female headspace collections. A behavioral assay using synthetic compounds showed that<br/>male M. sjostedti was attracted to both (R)-lavandulyl 3-methylbutanoate and (R)-lavandulol, while females responded<br/>only to (R)-lavandulyl 3-methylbutanoate. This is the first report of a male-produced aggregation pheromone in the<br/>genus Megalurothrips. The bean flower thrips is the primary pest of cowpea, which is widely grown in sub-Saharan<br/>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.}},
  author       = {{Niassy, Saliou and Tamiru, Amanuel and Hamilton, James G. C. and Kirk, William D. J. and Mumm, Roland and Sims, Cassie and Jan de Kogel, Willem and Ekesi, Sunday and Maniania, Nguya K. and Bandi, Krishnakumari and Mitchell, Fraser and Subramanian, Sevgan}},
  issn         = {{1573-1561}},
  keywords     = {{Thrips pheromone; Headspace analysis; Olfactometer bioassy}},
  language     = {{eng}},
  month        = {{02}},
  pages        = {{348--355}},
  publisher    = {{Springer}},
  series       = {{Journal of Chemical Ecology}},
  title        = {{Characterization of Male-Produced Aggregation Pheromone of the Bean Flower Thrips Megalurothrips sjostedti (Thysanoptera: Thripidae)}},
  url          = {{http://dx.doi.org/10.1007/s10886-019-01054-8}},
  doi          = {{10.1007/s10886-019-01054-8}},
  volume       = {{45}},
  year         = {{2019}},
}