News

11 Mar

Evidence of in vitro mecB-mediated β-lactam antibiotic resistance transfer to Staphylococcus aureus from Macrococcus psychrotolerans sp. nov., a psychrophilic bacterium from food-producing animals and human clinical specimens

Mašlaňová et al., Appl Environ Microbiol 2025
The study offers insights into the phenotypic and genomic features of new species Macrococcus psychrotolerans sp. nov. including first complete sequence of a linear 150-kb plasmid. Confirmed in vitro conjugative transfer of plasmid-borne mecB gene to S. aureus poses a significant risk of spread of broad β-lactam resistance including 5th generation cephalosporins.

30 Jan

Piezoelectric biosensor with dissipation monitoring enables the analysis of bacterial lytic agent activity

Obořilová R. et al., Scientific Reports 2025
We have published a novel approach to monitor the dynamics of lysis of pathogenic bacteria in real time using piezoelectric sensors. The results confirmed the effective synergy between bacteriophages and antibiotics in the action against Staphylococcus aureus, indicating that this is a promising strategy for the treatment of drug-resistant bacterial infections.

19 Jan

The pharmaceutical quality of freeze-dried tablets containing therapeutic bacteriophages against Pseudomonas aeruginosa and Staphylococcus aureus

Komárková et al., International Journal of Pharmaceutics 2025
Developing a quality dosage form containing bacteriophages is crucial for the practical application of phage therapy. We have published an article dealing with the processing of bacteriophages for treating P. aeruginosa and S. aureus infections into lyophilized tablets. The publication evaluated the quality of the resulting tablets according to pharmaceutical standards and the long-term stability of bacteriophages in this form. The publication was prepared together with colleagues from CEITEC VUT, FaF MUNI and MB Pharma s.r.o.

10 Jan

Permafrost as a source of mineral weathering bacteria: Implications of active layer thickening on James Ross Island, Antarctica

Micenková et al., CATENA 2025
Microbiological research in Antarctica provides a unique perspective on biodiversity and the influence of geochemistry on soil microbial composition. Samples from a 350 cm deep core were analyzed in the area of ​​the J. G. Mendel Czech Antarctic Station on James Ross Island. Geological transitions, such as the interface between the active layer and permafrost or the change between Holocene marine sediments and Cretaceous rocks, had a key influence on microbial composition. Due to warming, the interaction between microbial communities in the active layer and permafrost is expected to deepen in the future.

8 Oct 2024

Zúčastnili jsme se Noci vědců

8 Mar 2024

Effect of soil depth on the structure of bacterial composition in the active layer at five geologically distinct sites on James Ross and Vega Islands in Antarctica

Micenková et al., Polar Biology 2024
We have published what microbes we find in the surface layer above permafrost, known as the active layer, which thaws seasonally and is considered an important component of terrestrial ecosystems, where these microbes represent significant source of new bacterial species with potential, e.g., as a promising source of new antimicrobial compounds.

30 Nov 2023

Obdrželi jsme nový projekt TA ČR

Jorvik: a membrane-containing phage that will likely found a new family within Vinavirales

Congratulation to Pavol on to paper about new membrane-containing phage