Antimicrobial Activity of Corynebacterium amycolatum ICIS 53 and Corynebacterium amycolatum ICIS 82 Against Urogenital Isolates of Multidrug-Resistant Staphylococcus aureus.

Intermicrobial interactions play a key role in the regulation of microbial populations and the colonization of various ecological niches. In the present study, we assessed the effect of cell-free supernatants (CFSs) from the vaginal isolates Corynebacterium amycolatum ICIS 53 and Corynebacterium amycolatum ICIS 82 on urogenital test strain biofilm formation of Staphylococcus aureus. Our studies showed that the CFSs of both C.

A novel method of alkoxyamine homolysis activation photochemical rearrangement.

We proposed the nitrone-oxaziridine rearrangement as a novel method for photochemical activation for the homolysis of alkoxyamine in nitroxide-mediated polymerization. The photoisomerization of the aldo-/ketonitrone-group into the oxaziridine one in 2,5-dihydroimidazole 3-oxide-based alkoxyamines was studied; the products of photolysis have been identified, and quantum yields were measured. Conversion of the nitrone group into the oxaziridine one was found to decrease the activation energy of alkoxyamine homolysis by 10 kJ mol.

Antibiofilm activity of cell-free supernatants of vaginal isolates of Corynebacterium amycolatum against Pseudomonas aeruginosa and Klebsiella pneumoniae.

Biofilm formation is an important factor in the development of antibiotic resistance and chronic infection. In this study, we demonstrated that the cell-free supernatant of vaginal isolates of C. amycolatum caused a reduction in biofilm formation, destroyed the preformed biofilms, altered the cell surface properties and reduced the production of exopolysaccharides in clinical isolates of P.

The Kinetic Solvent Effect on 1,3-Dipolar Cycloaddition of 2,2,5,5-Tetramethyl-3-imidazoline-3-oxide-1-oxyl.

The use of 2,2,5,5-tetramethyl-3-imidazoline-3-oxide-1-oxyl (1) as a controlling agent in Nitroxide Mediated Polymerization allows for activation of alkoxyamine homolysis by 1,3-dipolar cycloaddition of a vinyl monomer [Edeleva et al. Chem. Commun.

Cappable-Seq Reveals Specific Patterns of Metabolism and Virulence for Typhimurium Intracellular Survival within .

The bacterial pathogen , which causes enteritis, has a broad host range and extensive environmental longevity. In water and soil, Salmonella interacts with protozoa and multiplies inside their phagosomes. Although this relationship resembles that between and mammalian phagocytes, the interaction mechanisms and bacterial genes involved are unclear.

The Kinetics of 1,3-Dipolar Cycloaddition of Vinyl Monomers to 2,2,5,5-Tetramethyl-3-imidazoline-3-oxides.

In our previous work [Edeleva et al. Chem. Commun.

NMR and EPR Study of Homolysis of Diastereomeric Alkoxyamines.

Three alkoxyamines based on imidazoline radicals with a pyridine functional group-potential initiators of nitroxide-mediated, controlled radical polymerization-were synthesized. Electron Paramagnetic Resonance (EPR) measurements reveal biexponential kinetics for the thermolysis for diastereomeric alkoxyamines and monoexponential kinetics for an achiral alkoxyamine. For comparison, the thermolysis of all three alkoxyamines was studied by NMR in the presence of three different scavengers, namely tetramethylpiperidine-N-oxyl (TEMPO), thiophenol (PhSH), and β-mercaptoethanol (BME), and detailed analysis of products was performed.

Data on rumen and faeces microbiota profiles of Yakutian and Kalmyk cattle revealed by high-throughput sequencing of 16S rRNA gene amplicons.

It is known that the rumen microbiome directly or indirectly contributes to animal production, and may be a prospective target for mitigation of greenhouse gas emissions [1]. At the same time, feed types and components of diet can influence the composition of the rumen microbiome [2,3]. Fluctuations in the composition of the digestive tract microbiota can alter the development, health, and productivity of cattle [4].

Dataset for transcriptome analysis of subsp. serovar Typhimurium strain 14028S response to starvation.

is an ubiquitous pathogen throughout the world causing gastroenteritis in humans and animals. Survival of pathogenic bacteria in the external environment may be associated with the ability to overcome the stress caused by starvation. The bacterial response to starvation is well understood in laboratory cultures with a sufficiently high cell density.

How intramolecular coordination bonding (ICB) controls the homolysis of the C-ON bond in alkoxyamines.

Because the C-ON bond homolysis rate constant is an essential parameter of alkoxyamine reactivity, it is especially important to tune without a major alteration of the structure of the molecule. Recently, several approaches have become known, , protonation of functional groups and formation of metal complexes. In this paper, coordination reactions of [Zn(hfac)(HO)] with a series of new SG1-based alkoxyamines affording complexes with different structures are presented.

Gut as a target for cadmium toxicity.

The primary objective of the present study was to review the impact of Cd exposure on gut microbiota and intestinal physiology, as well as to estimate whether gut may be considered as the target for Cd toxicity. The review is based on literature search in available databases. The existing data demonstrate that the impact of Cd on gut physiology is two-sided.

Draft Genome Sequence of the Vaginal Isolate ICIS 9.

ICIS 9 was isolated from a vaginal smear of a healthy woman. Here, we report the draft genome sequence of ICIS 9, which will be useful for further studies of specific genetic features of this strain and for understanding its probiotic properties.

Draft Genome Sequence of Corynebacterium amycolatum Strain ICIS 53 Isolated from a Female Urogenital Tract.

This report describes the draft genome sequence of Corynebacterium amycolatum strain ICIS 53, isolated from the reproductive tract of a healthy woman. The size of the genome was 2,460,257 bp (58.98% G+C content).

Influence of zinc nanoparticles on survival of worms Eisenia fetida and taxonomic diversity of the gut microflora.

The study was conducted to examine the effect of zinc nanoparticles on survival of worms Eisenia fetida and composition of the gut microflora. Analysis of the survival data has shown that the introduction of high doses of the nanoparticles causes death of worms in the second group with 35 % mortality rate and activates protective mechanisms realized as mucous film. DNA from the worm guts was extracted and 16S metagenomic sequencing was fulfilled using MiSeq (Illumina).