(11Z)-hexadec-11-enal enhances the attractiveness of Diatraea saccharalis main pheromone component in wind tunnel experiments |
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Authors: | B. Kalinová ,J. Kindl,O. Hovorka,M. Hoskovec, A. Svato |
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Affiliation: | Department of Natural Products, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic;;Max-Planck-Institute for Chemical Ecology, Hans-Knöll-Str., Jena, Germany |
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Abstract: | Abstract: GC-EAD and GC-MS analysis of pheromone gland extracts of sugarcane borer, Diatraea saccharalis , revealed two antennally active compounds, (9 Z ,11 E )-hexadeca-9,1-dienal and (11 Z )-hexadec-11-enal, in approximately 10 : 1 ratio. Various doses of identified compounds were investigated in wind tunnel experiments individually and in a 10 : 1 ratio. At all tested doses (9 Z ,11 E )-hexadeca-9,1-dienal alone elicited upwind orientation and source location only in a minority of tested males. An admixture of (11 Z )-hex-11-enal enhanced the attractiveness of (9 Z ,11 E )-hexadeca-9,11-dienal significantly. This two-component blend (100 pg) was as attractive as natural pheromone extracted from three female pheromone glands. The data suggest that (11 Z )-hexadec-11-enal is a part of the D. saccharalis sex pheromone. |
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Keywords: | Diatraea saccharalis (9Z, 11E)-hexadeca-9,11-dienal (11Z)-hexadec-11-enal,(11E)-hexadec-11-enal inhibition pheromone synergism |
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