Pygidial glands of three ground beetle taxa (Insecta, Coleoptera, Carabidae): a study on their morphology and chemical composition of their secretions

Vranić, Sofija; Vesović, Nikola; Vujisić, Ljubodrag; Pavlović, Danica; Pantelić, Dejan; Todosijević, Marina; Ćurčić, Srećko

doi:10.1016/j.zool.2021.125948

Cited by 5 publications

(1 citation statement)

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“…The exocrine abdominal glands occur in several families of Coleoptera and produce specific defensive secretions with repellent and irritant properties against predators (Blum, 1981; Chapman, 2012; Dettner, 1987). Their morphology and the chemical composition of the secretions have been described comparatively in Carabidae (Giglio et al, 2011; Giglio et al, 2021; Vranić et al, 2021; Will et al, 2000) and Tenebrionidae (Tschinkel & Doyen, 1980). In T. castaneum , several types of highly reactive and toxic benzoquinone compounds have been detected in the secretions of abdominal glands using chemical analyses such as thin‐layer chromatography (Happ, 1968; Unruh et al, 1998) and gas chromatography in combination with mass spectrometry (Villaverde et al, 2007), while 511 gland‐specific genes have been identified by RNA sequencing and transcriptomics in different gland tissues (Li et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Anatomical study of the red flour beetle using synchrotron radiation X‐ray phase‐contrast micro‐tomography

Vommaro

Donato

et al. 2022

Journal of Anatomy

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Synchrotron X-ray phase-contrast microtomography (SR-PhC micro-CT) is well established, fast and non-destructive imaging technique for data acquisition that is currently being used to obtain new insights into insect anatomy and function in physiological, morphological and phylogenetic studies. In this study, we described in situ the internal organs of the red flour beetle Tribolium castaneum Herbst 1797, a widespread pest of cereals and stored food causing serious damage to the human economy. Two-dimensional virtual sections and volumetric reconstructions of the nervous, alimentary and reproductive systems were carried out in both sexes. The results provided a comprehensive overview of the morphological characteristics of this species, such as the different maturation stages of ovarioles and the realistic location, size and shape of internal organs. Given the great interest in this model species in experimental biology and forensic entomology, complete knowledge of the general anatomy is required for future functional applications in pest control and experimental studies.In addition, this study confirms SR-PhC micro-CT as a powerful and innovative tool in entomology, particularly suitable for small species and chitinized structures that are difficult to analyse using conventional dissection and histological methods.

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