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Angew Chem Int Ed Engl

Title:		Maculatic Acids-Sex Attractant Pheromone Components of Bald-Faced Hornets
Author(s):		Ren W; Gries R; McCaughey C; Derstine N; Alamsetti SK; Kurita KL; Tu L; Linington RG; Britton R; Gries G;
Address:		"Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada. Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada"
Journal Title:		Angew Chem Int Ed Engl
Year:		2018
Volume:		20180628
Issue:		36
Page Number:		11618 - 11622
DOI:		10.1002/anie.201804666
ISSN/ISBN:		1521-3773 (Electronic) 1433-7851 (Linking)
Abstract:		"Yellowjackets in the genera Vespula and Dolichovespula are prevalent eusocial insects of great ecological and economic significance, but the chemical signals of their sexual communication systems have defied structural elucidation. Herein, we report the identification of sex attractant pheromone components of virgin bald-faced hornet queens (Dolichovespula maculata). We analyzed body surface extracts of queens by coupled gas chromatographic-electroantennographic detection (GC-EAD), isolated the compounds that elicited responses from male antennae by high-performance liquid chromatography (HPLC), and identified these components by GC mass spectrometry (MS), HPLC-MS, and NMR spectroscopy. In laboratory olfactometer experiments, synthetic (2Z,7E)-3,7-dimethyldeca-2,7-diendioic acid (termed here maculatic acid A) and (2Z,7E)-10-methoxy-3,7-dimethyldeca-10-oxo-deca-2,7-dienoic acid (termed here maculatic acid C) in binary combination significantly attracted bald-faced hornet males. These are the first sex attractant pheromone components identified in yellowjackets"
Keywords:		"Animals Chromatography, High Pressure Liquid Female Gas Chromatography-Mass Spectrometry Magnetic Resonance Spectroscopy Male Pheromones/analysis/*metabolism Sex Attractants/analysis/*metabolism Wasps/chemistry/*metabolism bald-faced hornets gas chromatog;"
Notes:		"MedlineRen, Weiwu Gries, Regine McCaughey, Catherine Derstine, Nathan Alamsetti, Santosh K Kurita, Kenji L Tu, Lorna Linington, Roger G Britton, Robert Gries, Gerhard eng Research Support, Non-U.S. Gov't Germany 2018/06/12 Angew Chem Int Ed Engl. 2018 Sep 3; 57(36):11618-11622. doi: 10.1002/anie.201804666. Epub 2018 Jun 28"