Abstract
In liquid culture, eight typical Gram-negative bacteria were ca. 10 000-fold more sensitive to cationic detergents than to the anionic detergent sodium dodecyl sulfate. Cetyltrimethylammonium bromide (CTAB) was inhibitory at concentrations ranging from 0.0006% to 0.01%. Four pseudomonads able to form biofilms were ca. 1000-fold more resistant to CTAB on Luria-Bertani agar plates than they were in liquid culture. A las1 mutant of Pseudomonas aeruginosa was only able to tolerate 0.1% CTAB on Luria-Bertani agar plates but could tolerate 5% CTAB when supplemented with homoserine lactone containing culture supernatants.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 775-779 |
| Number of pages | 5 |
| Journal | Canadian journal of microbiology |
| Volume | 49 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 2003 |
Keywords
- Bacterial detergent resistance
- Cetyltrimethylammonium bromide
- Homoserine lactones
- Pseudomonas biofilms
- Sodium dodecyl sulfate
ASJC Scopus subject areas
- Microbiology
- Immunology
- Applied Microbiology and Biotechnology
- Molecular Biology
- Genetics
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Cite this
Rajagopal, S., Eis, N., & Nickerson, K. W. (2003). Eight Gram-negative bacteria are 10 000 times more sensitive to cationic detergents than to anionic detergents. Canadian journal of microbiology, 49(12), 775-779. https://doi.org/10.1139/w03-100