Bioactive Male-Produced Volatiles from Anastrepha obliqua and their Role in Attraction of Conspecific Females

The study of insect semiochemicals, especially pheromones, is of fundamental importance for the development of strategies for controlling agricultural pests. In this study, volatile compounds involved in the communication between males and females of the fruit fly, Anastrepha obliqua (Diptera: Tephr...

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Bibliographic Details
Published in:Journal of chemical ecology 2021-02, Vol.47 (2), p.167-174
Main Authors: De Aquino, Nathaly C., Ferreira, Luana L., Tavares, Raphael, Silva, Claudinete S., Mendonça, Adriana, Joachim-Bravo, Iara Sordi, Milet-Pinheiro, Paulo, Navarro, Daniela, De Abreu Galdino, Fabiane C., Do Nascimento, Ruth R.
Format: Article
Language:English
Subjects:
Aeration
Agriculture
Anastrepha obliqua
Antennae
Bioassays
Biochemistry
Biological Microscopy
Biomedical and Life Sciences
Biopolymers
Chemical communication
Chromatography
Ecology
Electroantennograms
Entomology
Farnesene
Females
Formulations
Fruit flies
Gas chromatography
Headspace
Insects
Life Sciences
Linalool
Males
Mass spectrometry
Mass spectroscopy
Pest control
Pests
Pheromones
Semiochemicals
Volatile compounds
Volatiles
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Summary:The study of insect semiochemicals, especially pheromones, is of fundamental importance for the development of strategies for controlling agricultural pests. In this study, volatile compounds involved in the communication between males and females of the fruit fly, Anastrepha obliqua (Diptera: Tephritidae), for mating purposes were characterized to develop attractant formulations for females of this species. Extracts containing volatile compounds released by males of A. obliqua were obtained by the dynamic headspace technique and analyzed by gas chromatography coupled with an electroantennographic detector (GC-EAD) and gas chromatography coupled with mass spectrometry (GC-MS). Twenty-one volatile compounds were identified in the aeration extracts of males. Five of them caused EAD responses from the antennae of females: 1-heptanol, linalool, ( Z )-3-nonen-1-ol, ( E,Z )-3,6-nonadien-1-ol, and ( Z,E )-α-farnesene. Six synthetic mixtures of these compounds, including the five-component blend and all possible four-component blends, were formulated in a biopolymer and used in behavioral bioassays conducted in the laboratory arena with conspecific virgin females. One blend of 1-heptanol, linalool, ( Z )-3-nonen-1-ol, and ( Z,E )-α-farnesene attracted more females than the collection of volatiles from virgin males used as control. The other mixtures were as attractive to A. obliqua females as the control treatment. This study indicates potential for use of these compounds in monitoring and control strategies for this pest.
ISSN:0098-0331
1573-1561
DOI:10.1007/s10886-021-01248-z