| Title: | Interspecific pheromone cross-attraction among soybean bugs (Heteroptera): does Piezodorus hybneri (Pentatomidae) utilize the pheromone of Riptortus clavatus (Alydidae) as a kairomone? |
| Author(s): | Endo N; Wada T; Nishiba Y; Sasaki R; |
| Address: | "National Agricultural Research Center for Kyushu Okinawa Region, Koshi, Kumamoto, Japan. enobu@affrc.go.jp" |
| DOI: | 10.1007/s10886-006-9093-0 |
| ISSN/ISBN: | 0098-0331 (Print) 0098-0331 (Linking) |
| Abstract: | "The chemical and ecological function of cross-attraction of Piezodorus hybneri (Pentatomidae) to the Riptortus clavatus (Alydidae) pheromone (a mixture of three components) was studied. In a field attraction test using traps with synthetic pheromone components, P. hybneri was attracted to (E)-2-hexenyl (E)-2-hexenoate, a component of the R. clavatus pheromone. Other components had neither an additive nor a synergistic effect on the attraction of P. hybneri. Neither (E)-2-hexenyl (E)-2-hexenoate nor other components of the R. clavatus pheromone were detected in volatiles or whole-body extracts of P. hybneri adults by gas chromatographic analysis. In addition, (E)-2-hexenyl (E)-2-hexenoate could not be found in volatiles of soybean plants. Therefore, it appears that P. hybneri responds to a component of the R. clavatus pheromone that is not emitted by P. hybneri itself. We discuss this interspecific pheromone cross-attraction of the soybean bug and hypothesize that P. hybneri utilizes the pheromone of its competitor as a kairomone for host location" |
| Keywords: | Animals Caproates/metabolism/pharmacology Ecology Heteroptera/*physiology Pheromones/chemistry/*physiology Soybeans/parasitology Species Specificity Tissue Extracts/chemistry; |
| Notes: | "MedlineEndo, Nobuyuki Wada, Takashi Nishiba, Yoichi Sasaki, Rikiya eng 2006/05/18 J Chem Ecol. 2006 Jul; 32(7):1605-12. doi: 10.1007/s10886-006-9093-0. Epub 2006 May 17" |
