| Title: | "Identification of a female-specific, antennally active volatile compound of the currant stem girdler" |
| Author(s): | Cosse AA; Bartelt RJ; James DG; Petroski RJ; |
| Address: | "USDA Agricultural Research Service, National Center for Agricultural Utilization Research, Bioactive Agents Research Unit, Peoria, Illinois 61604, USA. cosseaa@mail.ncaur.usda.gov" |
| ISSN/ISBN: | 0098-0331 (Print) 0098-0331 (Linking) |
| Abstract: | "We identified (Z)-9-octadecen-4-olide as a female-specific, antennally active compound from the currant stem girdler Janus integer Norton. Female specificity was demonstrated by gas chromatographic comparison of liquid chromatography fractions of male and female volatile emissions and whole body extracts. The gamma-lactone was identified by coupled gas chromatographic-electroantennographic detection (GC-EAD), coupled gas chromatographic-mass spectrometric (GC-MS) analysis, microchemical reactions, and GC and MS comparison with authentic standards. GC-EAD analysis of female volatile emissions and cuticular extracts showed a single peak of activity on male antennae, which was not present in male-derived materials. Female antennae did not respond to any of the tested materials. The hydrogenation product of the natural EAD-active material was a known saturated gamma-lactone. The mass spectrum of the dimethyl disulfide derivative of the natural y -lactone was consistent with a double bond present in the 9 position. Comparison of the natural gamma-lactone and a synthesized racemic mixture of (Z)-9-octadecen-4-olide on a chiral GC column showed the presence of a single enantiomer in the natural material" |
| Keywords: | "Animals Chromatography, Gas Female Gas Chromatography-Mass Spectrometry Hymenoptera/*chemistry Lactones/*chemistry Oleic Acids/*chemistry Sex Attractants/*chemistry Volatilization;" |
| Notes: | "MedlineCosse, A A Bartelt, R J James, D G Petroski, R J eng 2001/09/08 J Chem Ecol. 2001 Sep; 27(9):1841-53. doi: 10.1023/a:1010412826373" |
