Antimicrobial activity of the pygidial gland secretion of the troglophilic ground beetle Laemostenus (Pristonychus) punctatus (Dejean, 1828) (Insecta: Coleoptera: Carabidae)
Authorized Users Only
Ćirić, Ana D.
Vujisić, Ljubodrag V.
Article (Published version)
MetadataShow full item record
The antimicrobial activity of the pygidial gland secretion released by adult individuals of the troglophilic ground beetle Laemostenus (Pristonychus) punctatus (Dejean, 1828), applying microdilution method with the aim to detect minimal inhibitory concentration, minimal bactericidal concentration and minimal fungicidal concentration, has been investigated. In addition, morphology of the pygidial glands is observed. Wehave tested 16 laboratory and clinical strains of human pathogens-eight bacterial both gram-positive and gram-negative species and eight fungal species. The pygidial secretion samples have showed antimicrobial properties against all strains of treated bacteria and fungi. Micrococcus flavus proved to be more resistant compared with other bacterial strains. More significant antimicrobial properties of the secretion are observed against Escherichia coli, which proved to be the most sensitive bacteria. Aspergillus fumigatus proved to be the most resistant, while Penicillium oc...hrochloron and Penicillium verrucosum var. cyclopium themost sensitive micromycetes. Commercial antibiotics Streptomycin and Ampicillin and antimycotics Ketoconazole and Bifonazole, applied as positive controls, showed higher antibacterial properties for all bacterial and fungal strains, except for P. ochrochloron, which proved to be more resistant on Ketoconazole compared with the pygidial gland secretion of L. (P.) punctatus. Apart from the role in ecological aspects, the antimicrobial properties of the tested secretion possibly might have medical significance in the future.
Keywords:Laemostenus (Pristonychus) punctatus / pygidial gland secretion / antibacterial and antifungal activity / human pathogens / microdilution / morphology
Source:Bulletin of Entomological Research, 2016, 106, 4, 474-480
- Cambridge Univ Press, Cambridge
- Ontogenetic characterization of phylogenetic biodiversity (RS-173038)
- Characterization and application of fungal metabolites and assessment of new biofungicides potential (RS-173032)
- Natural products of wild, cultivated and edible plants: structure and bioactivity determination (RS-172053)
- The effects of magnetic fields and other environmental stressors on the physiological responses and behavior of different species (RS-173027)