Molecular Identification of Spironucleus vortens From the Digestive Tract of Discus (Symphysodon discus Heckel, 1840) and Its Association With Mixed Bacterial Coinfection.

This study presents the first case in Poland of isolation and molecular identification of the Spironucleus vortens parasite from the digestive tract of diseased ornamental fish belonging to the species discus fish (Symphysodon discus Heckel, 1840). Recently, an increasing percentage of fish submitted for testing to the Department of Biology and Fish Diseases, have been observed that show typical symptoms of hole-in-the-head disease, therefore it is important to have accurate information about this disease. In preparation of this work, two fish were studied.

Combined antimicrobial action of streptomycin and terpenes against atypical mycobacteria isolated from fish.

The aim of this study was to investigate the antimycobacterial activity of 39 free terpenes and their activity in combination with streptomycin. Antimicrobial activity was first evaluated by screening 39 free terpenes at concentrations from 1.56 to 400 μg/mL.

Vibrio infection in freshwater fish in Poland.

Vibrio species are common inhabitants of aquatic environments and have been described in connection with fish and human diseases. Six Vibrio species were isolated from diseased freshwater and ornamental fish in Poland. The strains were identified based on morphological and biochemical characteristics and confirmed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) as V.

Evaluation of the anti-mycobacterial activity and composition of L. root extracts.

Nontuberculous mycobacteria (NTM) have recently emerged as important bacterial pathogens of animals and humans. Of particular concern is the high level of antimicrobial resistance displayed by these organisms, which complicates treatment and potential successful outcomes. Here, we evaluated the potential of Carlina acaulis L.

Effect of alkaloid berberine on the susceptibility of nontuberculous mycobacteria to antibiotics.

Nontuberculous mycobacteria (NTM) have recently emerged as important bacterial pathogens of both animals and humans. In this study, we aimed to evaluate the effect of a combination of ten antibiotics with an inhibitor of efflux pumps (EPI), i.e.