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Guanidinium oligomers are a poorly studied class of organic compounds and attract attention due to their antimicrobial properties. Strengthening the antimicrobial properties and simplifying and reducing the cost of the synthesis of these compounds is promising for obtaining functional guanidine-containing oligomers with alkyl radicals of different lengths in their composition. Читати далі

The species Pseudomonas batumici, isolated from the rhizosphere of eucalyptus in the humid subtropical zone, is a producer of the polyketide antibiotic batumin with highly selective activity against staphylococci. Batumin biosynthesis operon includes 28 genes or 74 151 bp. According to modern notions, the biosynthesis of energy-intensive metabolites, which probably Читати далі

DOI: https://doi.org/10.3103/s0095452721060050

It is known that moving volutin granules (“dancing bodies”), mechanism of which occurrence remains poorly understood, can be observed in yeast vacuoles. This study was performed to reveal the presence of a connection between moving volutin granules of Saccharomyces cerevisiae and polyphosphate metabolism in conditions of phosphoric starvation and hypercompensation. Читати далі

Today there are no antiviral drugs of chemical nature that can completely cure virus-infected plants. The fact that their effect is limited to minimizing the pathogenic effect of viruses motivates many researchers to look for alternatives. In recent years it has been shown that lipopolysaccharides (LPS) of some bacteria, in Читати далі

The ability of microorganisms to survive in unfavorable conditions and maintain their biodegradation activity is mainly associated with changes in the composition of their cellular lipids. One of the factors of negative impact on cells can be their interaction with petroleum hydrocarbons, especially monoaromatic compounds, which are toxic to microorganisms Читати далі

According to our previous results, S-type bacteriocins of Pseudomonas aeruginosa are characterized by high activity against phytopathogenic Pseudomonas syringae strains. In addition to these pyocins producing strains are able to synthesize microcin-II-like bacteriocins. Presence of interaction between these two killer factors can determine methods of their use and activity increase Читати далі

Bacteria of the genus Bacillus make up a significant (8–12%) part of the soil microbiome. Manifestation of their biological activity, in particular, the antagonistic and lytic activity against other microorganisms directly depends on their exometabolites. According to the literature, such properties of soil bacteria of the genus Bacillus thus can Читати далі