对 Phyllosoma 复合组雄性（Triatominae：Reduviidae）来说，比玫瑰还甜。

"Sweeter than a rose", at least to Triatoma phyllosoma complex males (Triatominae: Reduviidae).

机构信息

Centro Regional de Investigación en Salud Pública, Instituto Nacional de Salud Pública (CRISP-INSP), Tapachula, Chiapas, Mexico.

Laboratorio de Investigación en Triatominos, Centro de Referencia de Vectores, Ministerio de Salud de la Nación (CeReVe), Hospital Colonia, Pabellón Rawson calle s, /n, Córdoba, Argentina.

出版信息

Parasit Vectors. 2018 Feb 17;11(1):95. doi: 10.1186/s13071-018-2677-z.

DOI:10.1186/s13071-018-2677-z

PMID:29454375

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5816367/

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.

摘要

背景

克氏锥虫传播媒介（红蝽科：Reduviidae）的 Phyllosoma 三锥虫复合体分布在墨西哥的新热带和近北极生物区。

方法

使用固相微萃取结合气相色谱-质谱法鉴定受干扰的长红蝽、白足红蝽和 Phyllosoma 三锥虫，以及它们的 Brindley 腺和胸腺所释放的挥发性有机化合物。

结果

受干扰的虫子和 Phyllosoma 的胸腺释放或拥有的化合物明显少于长红蝽和白足红蝽。异丁酸是这三个物种受干扰的虫子分泌的最丰富的化合物，而所有物种的 Brindley 腺都产生了另外四种化合物：丙酸、异丁酸、戊基丁酸酯和 2-甲基己酸。两种新型化合物，均为玫瑰氧化物异构体，在胸腺中产生并仅由所有三个物种受干扰的雌性释放，这是在红蝽科中首次报道这些单萜类化合物。长红蝽和 Phyllosoma 雌雄两性胸腺的主要化合物均为 3-甲基-2-己酮，而 cis-玫瑰氧化物是白足红蝽雌虫的主要化合物。白足红蝽雄虫分泌物的主要成分是 2-癸醇和 3-甲基-2-己酮。