Izvestiya of Saratov University.
ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)


clopyralid

The Effect of Pollutants on the Emergence of Rifampicin Resistance in Bacteria of the Pseudomonas Genus

The anthropogenic pressure on ecosystems may contribute to the spread of antibiotic resistance among bacteria in natural conditions. Due to this, the aim of this work was to study the impact of specific biocides, antibiotics, pesticides and heavy metals on the emergence of rifampicin resistant mutants of Pseudomonas putida. To assess the impact of toxic substances on the emergence of rifampicin-resistant mutants the studied substances and rifampicin in the final concentration of 100 ?g/ml were added into nutrient medium before plating.

The Effect of Pollutants on the Intensity of Biofilm Formation by the Strain Vibrio aquamarinus VKPM B-11245

Most microorganisms in natural conditions exist in the form of biofilms. Due to this fact, the question of research of various substances influence on their formation process is relevant. This article presents data on the influence of various groups of pollutants, such as antibiotics (ampicillin, oxytetracycline), antiseptics (dioxidine, chlorhexidine), herbicides (glyphosate, clopyralid) and salts of heavy metals (CuSO4, HgCl2) in various concentrations on the intensity of biofilm formation by the strain Vibrio aquamarinus VKPM B-11245.