Article
Origin of antibacterial stasis by polymyxin B in Escherichia coli.
Biochimica et biophysica acta - 15 Jan 2000
Liechty A, Chen J, Jain M K
Abstract excerpt
We show that blockage of hyperosmotic shock induced plasmolysis by polymyxin B (PxB) is related to its selective antimicrobial action against Gram-negative organisms. The rapid wrinkling of the cytoplasmic membrane induced by the hyperosmotic shrinkage of cytoplasmic volume due to the water efflux is monitored as an increase in the 90 degrees light scattering. The rapid scattering response is complete within 1...
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