ArticleCurrent microbiology2008
Analysis of cell wall constituents of biocide-resistant isolates from dental-unit water line biofilms.
Article in Current microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed, 22 citations in OpenAlex.
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- Article
- Potato suberin induces differentiation and secondary metabolism in the genus Streptomyces.Microbes and environments · 2012Article
- Characterization of outer membrane proteins of Escherichia coli in response to phenol stress.Current microbiology · 2011Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In past years, the significance of microbial resistance to biocides has increased. Twenty biocide-resistant bacterial strains were isolated from dental-unit water line biofilm. All strains resisted high biocide concentrations (up to 100 microg ml(-1)): sodium dodecyl sulphate, hydrogen peroxide, sodium hypochlorite, phenol, Tween 20, ethylenediaminetetraacetic acid, chlorohexidine gluconate, and povidine iodine. Among bacteria, biocide sensitivity is based on permeability of biocides through the cell wall. Gram-positive bacteria are more permeable and susceptible to biocides, whereas gram-negative bacteria have a more complex cell wall and are the least sensitive bacteria. The present study was designed to study the effect of biocides on the cell wall of biocide-resistant bacteria. Peptidoglycan (PG), diaminopimelic acid (DAP), and teichoic acid contents of the cell wall were determined in L-broth and L-broth supplemented with biocides at different temperatures (37 degrees C and 45 degrees C) and pH levels (7 and 9). In general and Gram staining-specific comparison, a significant increase (p < 0.05) in the DAP content of biocide-resistant bacteria was observed at pH 7 and at both temperatures. In tubing-specific comparison, a significant increase in the amount of teichoic acid in air water tubing (37 degrees C at pH 9) and DAP in patient tubing (pH 7 at both temperatures) was observed. In main water pipe, a significant decrease (p > 0.05) in PG content was noticed at 45 degrees C and pH 9. Overall, a significant increase in DAP content may be an important constituent in the manifestation of isolate resistance against various biocides.
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