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Re-Analysis of Abdominal Gland Volatilome Secretions of the African Weaver Ant, Oecophylla longinoda (Hymenoptera: Formicidae)

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International Centre of Insect Physiology and Ecology (icipe), Nairobi 30772-00100, Kenya
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Department of Zoology and Entomology, University of Pretoria, Private Bag X20, Hatfield, Pretoria 0028, South Africa
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CIRAD, UPR HortSys (Agroecological Functioning and Performances of Horticultural Systems), University of Montpellier, 34000 Montpellier, France
*
Authors to whom correspondence should be addressed.
Academic Editor: Laura Mercolini
Molecules 2021, 26(4), 871; https://doi.org/10.3390/molecules26040871
Received: 6 December 2020 / Revised: 23 January 2021 / Accepted: 2 February 2021 / Published: 7 February 2021
The African weaver ant, Oecophylla longinoda, is used as a biological control agent for the management of pests. The ant has several exocrine glands in the abdomen, including Dufour’s, poison, rectal, and sternal glands, which are associated with pheromone secretions for intra-specific communication. Previous studies have analyzed the gland secretions of Dufour’s and poison glands. The chemistry of the rectal and sternal glands is unknown. We re-analyzed the secretions from Dufour’s and poison glands plus the rectal and sternal glands to compare their chemistries and identify additional components. We used the solid-phase microextraction (SPME) technique to collect gland headspace volatiles and solvent extraction for the secretions. Coupled gas chromatography–mass spectrometry (GC-MS) analysis detected a total of 78 components, of which 62 were being reported for the first time. These additional components included 32 hydrocarbons, 12 carboxylic acids, 5 aldehydes, 3 alcohols, 2 ketones, 4 terpenes, 3 sterols, and 1 benzenoid. The chemistry of Dufour’s and poison glands showed a strong overlap and was distinct from that of the rectal and sternal glands. The different gland mixtures may contribute to the different physiological and behavioral functions in this ant species. View Full-Text
Keywords: weaver ant; biological control; hydrocarbons; solid-phase microextraction (SPME); mass spectrometry weaver ant; biological control; hydrocarbons; solid-phase microextraction (SPME); mass spectrometry
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MDPI and ACS Style

Mekonnen, B.; Cheseto, X.; Pirk, C.; Yusuf, A.; Ekesi, S.; Deletre, E.; Torto, B. Re-Analysis of Abdominal Gland Volatilome Secretions of the African Weaver Ant, Oecophylla longinoda (Hymenoptera: Formicidae). Molecules 2021, 26, 871. https://doi.org/10.3390/molecules26040871

AMA Style

Mekonnen B, Cheseto X, Pirk C, Yusuf A, Ekesi S, Deletre E, Torto B. Re-Analysis of Abdominal Gland Volatilome Secretions of the African Weaver Ant, Oecophylla longinoda (Hymenoptera: Formicidae). Molecules. 2021; 26(4):871. https://doi.org/10.3390/molecules26040871

Chicago/Turabian Style

Mekonnen, Bethelihem, Xavier Cheseto, Christian Pirk, Abdullahi Yusuf, Sunday Ekesi, Emilie Deletre, and Baldwyn Torto. 2021. "Re-Analysis of Abdominal Gland Volatilome Secretions of the African Weaver Ant, Oecophylla longinoda (Hymenoptera: Formicidae)" Molecules 26, no. 4: 871. https://doi.org/10.3390/molecules26040871

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