Resistance mechanisms of mucoid‐grown Staphylococcus aureus to the antibacterial action of some disinfectants and antiseptics

The effects of commercial preparations of some disinfectants and antiseptics on mucoid‐grown Staphylococcus aureus were investigated. Substantial reductions in their killing efficiencies were observed in the presence of mucoid‐grown staphylococci but not with non‐mucoid organisms. The reductions in...

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Bibliographic Details
Published in:FEMS microbiology letters 1984-12, Vol.25 (2‐3), p.205-209
Main Author: Kolawole, Deboye O.
Format: Article
Language:English
Subjects:
Action of physical and chemical agents on bacteria
antiseptics
Bacteriology
Biological and medical sciences
disinfectants
Extracellular slime
Fundamental and applied biological sciences. Psychology
inhibition
Microbiology
resistance
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Summary:The effects of commercial preparations of some disinfectants and antiseptics on mucoid‐grown Staphylococcus aureus were investigated. Substantial reductions in their killing efficiencies were observed in the presence of mucoid‐grown staphylococci but not with non‐mucoid organisms. The reductions in antibacterial efficacies were comparable to the inhibitory effects of hard water, killed yeast, asparagine, blood plasma, thioglycollate and Tween‐80. These reductions could be eliminated by washing mucoid organisms in saline broth or sub‐culturing in BHI broth. This indicated that protection by the extracellular slime covering is an effective resistance mechanism of mucoid‐grown staphylococci.
ISSN:0378-1097
1574-6968
DOI:10.1111/j.1574-6968.1984.tb01457.x