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Male-released sex pheromone of the stink bug Piezodorus hybneri
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Male-released sex pheromone of the stink bug Piezodorus hybneri
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Journal Article
Male-released sex pheromone of the stink bug Piezodorus hybneri
1998
Overview
Male-released semiochemicals of the stink bug Piezodorus hybneri (Heteroptera: Pentatomidae) elicit attraction of male and female bugs and homosexual behavior in males. Three active components were isolated from the airborne volatiles of males by flash chromatography, with the activity-monitored by GC-EAD and behavioral bioassay. The pheromone system was characterized as a mixture of beta-sesquiphellandrene, (R)-15-hexadecanolide. and methyl 8-(Z)-hexadecenoate (ratio: 10:4:1), and the activity of the semiochemicals was assessed with authentic samples. Enantiomerically pure samples of the R and S macrolactones were obtained by Yamaguchi's and Mitsunobu's macrolactonization of a key intermediate. (R)-15-hydroxyhexadecanoic acid. The nonnatural S stereoisomer was neither a beneficial nor a behavioral antagonist. Individual constituents or binary mixtures were active, but the optimal male response was elicited only by the full mixture. Behavioral observation and the fact that the onset of pheromone production is coincident with ovarian development strongly suggest that these semiochemicals are, in fact, sex pheromones.
Publisher
Springer,Springer Nature B.V
