Original Research ArticleInteraction of ethidium and tetraphenylphosphonium cations with Salmonella enterica cells

Add time:08/25/2019    Source:sciencedirect.com

Background and objectiveOne of the main causes of bacterial resistance to antimicrobials is multidrug resistance induced by the increased efficiency of the efflux pumps. In this study we analyzed how the conditions of assay affect the efflux of indicator substrates ethidium (Et+) and tetraphenylphosphonium (TPP+) in Salmonella enterica ser. Typhimurium cells. Impact of the outer membrane permeability barrier, composition and temperature of the medium on accumulation of the indicator compounds also was analyzed.

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