| Title: | Diel rhythm of volatile emissions of males and females of the peach fruit fly Bactrocera zonata |
| Author(s): | Levi-Zada A; Levy A; Rempoulakis P; Fefer D; Steiner S; Gazit Y; Nestel D; Yuval B; Byers JA; |
| Address: | "Department of Entomology, Agricultural Research Organization, Volcani Center, P.O.B 15159, Rishon LeZion 7505101, Israel. Electronic address: anatzada@volcani.agri.gov.il. Department of Entomology, Agricultural Research Organization, Volcani Center, P.O.B 15159, Rishon LeZion 7505101, Israel; Department of Entomology, Robert H Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel. Department of Entomology, Agricultural Research Organization, Volcani Center, P.O.B 15159, Rishon LeZion 7505101, Israel; NSW Department of Primary Industries, Ourimbah, NSW 2258, Australia. Department of Entomology, Agricultural Research Organization, Volcani Center, P.O.B 15159, Rishon LeZion 7505101, Israel. The 'Israel Cohen' Institute for Biological Control, Plants Production and Marketing Board, Citrus Division, Israel. Department of Entomology, Robert H Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel" |
| DOI: | 10.1016/j.jinsphys.2019.103970 |
| ISSN/ISBN: | 1879-1611 (Electronic) 0022-1910 (Linking) |
| Abstract: | "Fruit flies in the genus Bactrocera are among the most destructive insect pests of fruits and vegetables throughout the world. A number of studies have identified volatiles from fruit flies, but few reports have demonstrated behavioral effects or sensitivities of fly antennae to these compounds. We applied a recently developed method of automated headspace analysis using SPME (Solid Phase Microextraction) fibers and GC-MS (gas chromatography mass spectrometry), termed SSGA, to reveal volatiles specific to each sex of B. zonata that are emitted in a diel periodicity. The volatiles released primarily at dusk were identified by GC-MS and chemical syntheses as several spiroacetals, pyrazines, and ethyl esters. Solvent extraction of male rectal glands or airborne collections from each sex, followed by GC-MS, showed that certain of the volatiles increase or decrease in quantity sex-specifically with age of the flies. Electroantennographic (EAG) analysis of dose-response indicates differences in sensitivities of male and female antenna to the various volatiles. Our study provides a comprehensive analysis of the volatile chemicals produced and released by B. zonata and their antennal responses. The possible pheromone and semiochemical roles of the various volatiles released by each sex and the difficulties of establishing behavioral functions are discussed" |
| Keywords: | Animals Circadian Rhythm Female Male Pheromones/metabolism Pyrazines/metabolism Sex Factors Tephritidae/*metabolism Volatile Organic Compounds/*metabolism Bactrocera zonata Diurnal rhythm Eag Sequential SPME/GC-MS analysis Tephritidae; |
| Notes: | "MedlineLevi-Zada, A Levy, A Rempoulakis, P Fefer, D Steiner, S Gazit, Y Nestel, D Yuval, B Byers, J A eng Research Support, Non-U.S. Gov't England 2019/11/11 J Insect Physiol. 2020 Jan; 120:103970. doi: 10.1016/j.jinsphys.2019.103970. Epub 2019 Nov 5" |
