Re-analysis of abdominal gland volatilome secretions of the African weaver ant, Oecophylla longinoda (Hymenoptera: Formicidae)

Mekonnen Bethelihem, Cheseto Xavier, Pirk Christian W.W., Yusuf Abdullahi A., Ekesi Sunday, Deletre Emilie, Torto Baldwyn. 2021. Re-analysis of abdominal gland volatilome secretions of the African weaver ant, Oecophylla longinoda (Hymenoptera: Formicidae). Biomolecules, 26 (4):871, 12 p.

Url - jeu de données - Entrepôt autre : https://doi.org/10.6084/m9.figshare.6025748

Quartile : Q2, Sujet : BIOCHEMISTRY & MOLECULAR BIOLOGY

Résumé : 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.

Mots-clés Agrovoc : Oecophylla, agent de lutte biologique, Mangifera indica, lutte biologique, glande exocrine, composition chimique, intoxication, substance toxique

Mots-clés géographiques Agrovoc : Kenya

Mots-clés libres : Weaver ants, Biological Control, Hydrocarbons, Solid-phase microextraction (SPME), Mass spectrometry

Agences de financement hors UE : Deutscher Akademischer Austauschdienst, Centre de Coopération Internationale en Recherche Agronomique pour le Développement, International Centre of Insect Physiology and Ecology, Foreign, Commonwealth and Development Office, Swedish International Development Cooperation Agency, Swiss Agency for Development and Cooperation, Federal Democratic Republic of Ethiopia, Government of the Republic of Kenya

Auteurs et affiliations

• Mekonnen Bethelihem, ICIPE (KEN)
• Cheseto Xavier, ICIPE (KEN)
• Pirk Christian W.W., University of Pretoria (ZAF)
• Yusuf Abdullahi A., University of Pretoria (ZAF)
• Ekesi Sunday, ICIPE (KEN)
• Deletre Emilie, CIRAD-PERSYST-UPR HortSys (KEN) ORCID: 0000-0002-0386-7326 - auteur correspondant
• Torto Baldwyn, ICIPE (KEN) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/613462/)

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