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Mostrando ítems 41-50 de 64
Artículo
Contribution of phenotypic heterogeneity to adaptive antibiotic resistance
(2014)
Antibiotic-resistant isolates of Salmonella enterica were selected on plates containing lethal concentrations of rifampicin, kanamycin, and nalidixic acid. The stability of the resistance phenotype was scored after ...
Artículo
Rcs and PhoPQ regulatory overlap in the control of Salmonella enterica virulence
(Journal of Bacteriology, 2007)
Genetic screens based on the use of MudJ-generated lac fusions permitted the identification of novel genes regulated by the Rcs signal transduction system in Salmonella enterica serovar Typhimurium. Besides genes that are ...
Artículo
Selection of small-colony variants of salmonella enterica serovar typhimurium in nonphagocytic eucaryotic cells
(American Society for Microbiology, 2003-07)
Salmonella enterica strains are enteropathogenic bacteria that survive and proliferate within vacuolar compartments of epithelial and phagocytic cells. Recently, it has been reported that fibroblast cells are capable of ...
Artículo
A eukaryotic-like 3′ untranslated region in Salmonella enterica hilD mRNA
(Oxford University Press, 2014)
Long 3' untranslated regions (3'UTRs) are common in eukaryotic mRNAs. In contrast, long 3'UTRs are rare in bacteria, and have not been characterized in detail. We describe a 3'UTR of 310 nucleotides in hilD mRNA, a transcript ...
Artículo
Bile-induced peptidoglycan remodelling in Salmonella enterica
(Blackwell Publishing, 2015)
Changes in the peptidoglycan (PG) structure of Salmonella enterica are detected in the presence of a sublethal concentration of sodium deoxycholate (DOC): (i) lower proportions of Braun lipoprotein (Lpp)-bound muropeptides; ...
Artículo
Programmed heterogeneity: Epigenetic mechanisms in bacteria
(Elsevier, 2013)
Contrary to the traditional view that bacterial populations are clonal, single-cell analysis reveals that phenotypic heterogeneity is common in bacteria. Formation of distinct bacterial lineages appears to be frequent ...
Artículo
Evidence for Involvement of the Salmonella enterica Z-Ring Assembly Factors ZapA and ZapB in Resistance to Bile
(Frontiers Media, 2021)
Genes annotated as ygfE and yiiU in the genome of Salmonella enterica serovar Typhimurium encode proteins homologous to Escherichia coli cell division factors ZapA and ZapB, respectively. ZapA− and ZapB− mutants of S. ...
Artículo
STM2209-STM2208 (opvAB): A Phase Variation Locus of Salmonella enterica Involved in Control of O-Antigen Chain Length
(Public Library of Science, 2012)
STM2209 and STM2208 are contiguous loci annotated as putative protein-coding genes in the chromosome of Salmonella enterica. Lack of homologs in related Enterobacteria and low G+C content suggest that S. enterica may have ...
Artículo
Gibberella fujikuroi mutants obtained with UV radiation and N-methyl-N'-nitro-N-nitrosoguanidine
(American Society for Microbiology, 1985)
N-methyi-N'-nitro-N-nitrosoguanidine (nitrosoguanidine) and to a lesser extent UV radiation are very mutagenic for Gibberella microconidia. The recommended nitrosoguanidine doses lead to much higher frequencies of mutants ...
Artículo
Genetic Mining of Newly Isolated Salmophages for Phage Therapy
(Multidisciplinary Digital Publishing Institute (MDPI), 2022)
Salmonella enterica, a Gram-negative zoonotic bacterium, is mainly a food-borne pathogen and the main cause of diarrhea in humans worldwide. The main reservoirs are found in poultry farms, but they are also found in wild ...