University of Illinois Urbana-Champaign

1-(1H-pyrrol-2-yl)-1,2-propandione is a crucial pheromone component of the rare North American cerambycid beetle Dryobius sexnotatus

Diesel, Natalie Marie

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https://hdl.handle.net/2142/97606

Description

Title
1-(1H-pyrrol-2-yl)-1,2-propandione is a crucial pheromone component of the rare North American cerambycid beetle Dryobius sexnotatus
Author(s)
Diesel, Natalie Marie
Issue Date
2017-04-24
Director of Research (if dissertation) or Advisor (if thesis)
Hanks, Lawrence M.
Committee Member(s)
  • Allan, Brian F.
  • Suarez, Andrew V.
Department of Study
Entomology
Discipline
Entomology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Date of Ingest
2017-08-10T19:52:13Z
Keyword(s)
  • Reproductive isolation
  • Sex pheromone
  • Aggregation-sex pheromone
  • Cerambycidae
  • Longhorned beetle
Abstract
The compound 1-(1H-pyrrol-2-yl)-1,2-propanedione was recently found to be an important pheromone component of several Asian species of longhorned beetles in the subfamily Cerambycinae. Here, we report the first confirmed identification of this pyrrole as a pheromone component of a cerambycine species native to North America, the rare Dryobius sexnotatus Linsley. Headspace volatiles from males contained (R)-3-hydroxyhexan-2-one and the pyrrole (ratio 1:0.13), neither of which were detected in samples from females. A field bioassay confirmed that adults of both sexes were attracted only by the binary blend of racemic 3-ketol with the pyrrole, and not by either compound alone. Adults of another cerambycine, Xylotrechus colonus (F.), were attracted by the ketol, consistent with its being the primary component of the pheromone of this species, and attraction was not influenced by the presence of the pyrrole. This study attests to the effectiveness of pheromone-baited traps in detecting rarely encountered species of cerambycids. It also provides further evidence that the pyrrole represents another conserved pheromone motif within the Cerambycinae.
Graduation Semester
2017-05
Type of Resource
text
Permalink
http://hdl.handle.net/2142/97606
Copyright and License Information
Copyright 2017 Natalie Diesel

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Dissertations and Theses - Entomology