Sub-lethal Concentrations of Phytochemicals (Carvacrol and Oregano) Select for Reduced Susceptibility Mutants of Escherichia coli O23:H52
نویسندگان
چکیده
منابع مشابه
Fitness of Escherichia coli mutants with reduced susceptibility to tigecycline
OBJECTIVES The objective of this study was to determine the fitness of Escherichia coli mutants with reduced susceptibility to tigecycline after exposure to adverse conditions in vitro and in vivo. METHODS Survival in response to low pH, bile salts, oxidative stress and human serum was examined for E. coli mutants with reduced susceptibility to tigecycline due to single mutations that caused ...
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Hypochlorite is a reactive oxygen species that is worldwide as an antibacterial disinfectant. Hypochlorite exposure is known to cause oxidative damage to DNA and proteins. As a response to these effects, the metabolite profiles of organisms treated with sub-lethal doses of hypochlorite are assumed to be severely modified; however, the nature of these changes is hardly understood. Therefore, usi...
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AcrAB-TolC is a major efflux pump in Escherichia coli. It was reported that tolC is overexpressed and involves in improving the organic solvent tolerance level in Escherichia coli marR mutants that are resistant to several antibiotics, such as ciprofloxacin. Low and intermediate levels resistance did not improve organic solvent tolerance. Thus, in this descriptive-experimental study it was deci...
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AcrAB-TolC is a major efflux pump in Escherichia coli. It was reported that tolC is overexpressed and involves in improving the organic solvent tolerance level in Escherichia coli marR mutants that are resistant to several antibiotics, such as ciprofloxacin. Low and intermediate levels resistance did not improve organic solvent tolerance. Thus, in this descriptive-experimental study it was deci...
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The present study was carried out to determine the potential antibacterial effect of essential oil of Origanumvulgare against antibiotic resistant E.coli. In this study, the essential oil of Origanumvulgare obtained by hydrodistillation was analyzed by gas chromatography coupled to mass spectrometry (GC-MS) in order to determine their chemical composition. The minimum inhibitory concentrations ...
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ژورنال
عنوان ژورنال: Polish Journal of Microbiology
سال: 2020
ISSN: 2544-4646,1733-1331
DOI: 10.33073/pjm-2020-003