"Sweeter Than a Rose", at Least to Triatoma Phyllosoma Complex Males (Triatominae: Reduviidae)

Overview

Journal Parasit Vectors

Publisher Biomed Central

Specialties Parasitology
Tropical Medicine

Date 2018 Feb 19

PMID 29454375

Citations 2

Authors

Irving J May-Concha

Leopoldo C Cruz-Lopez

Julio C Rojas

Janine M Ramsey

Affiliations

Soon will be listed here.

Abstract

Background: The Triatoma phyllosoma complex of Trypanosoma cruzi vectors (Triatominae: Reduviidae) is distributed in both Neotropical and Nearctic bioregions of Mexico.

Methods: Volatile organic compounds emitted by disturbed Triatoma longipennis, Triatoma pallidipennis and Triatoma phyllosoma, and from their Brindley's and metasternal glands, were identified using solid-phase microextraction coupled with gas chromatography-mass spectrometry.

Results: Disturbed bugs and the metasternal glands from T. phyllosoma released or had significantly fewer compounds than T. longipennis and T. pallidipennis. Isobutyric acid was the most abundant compound secreted by disturbed bugs of the three species, while Brindley's glands of all species produced another four compounds: propanoic acid, isobutyric acid, pentyl butanoate, and 2-methyl hexanoic acid. Two novel compounds, both rose oxide isomers, were produced in MGs and released only by disturbed females of all three species, making this the first report in Triatominae of these monoterpenes. The principal compound in MGs of both sexes of T. longipennis and T. phyllosoma was 3-methyl-2-hexanone, while cis-rose oxide was the principal compound in T. pallidipennis females. The major components in male effluvia of T. pallidipennis were 2-decanol and 3-methyl-2-hexanone.

Conclusion: Discriminant analysis of volatile organic compounds was significant, separating the three species and was consistent with morphological and genetic evidence for species distinctions within the complex.

Citing Articles

Does Trypanosoma cruzi (Chagas, 1909) (Kinetoplastida: Trypanosomatidae) modify the antennal phenotype of Triatoma dimidiata (Latreille, 1811) (Hemiptera: Triatominae)?.

May-Concha I, Escalante-Talavera M, Dujardin J, Waleckx E Parasit Vectors. 2022; 15(1):466.

PMID: 36517855 PMC: 9749310. DOI: 10.1186/s13071-022-05587-y.

Attraction of Rhodnius prolixus males to a synthetic female-pheromone blend.

Bohman B, Weinstein A, Unelius C, Lorenzo M Parasit Vectors. 2018; 11(1):418.

PMID: 30012183 PMC: 6048742. DOI: 10.1186/s13071-018-2997-z.

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