Destruction of the outer membrane permeability barrier of Escherichia coli by heat treatment.


Heat treatment of a wild-type Escherichia coli strain at 55 degrees C in 50 mM Tris-hydrochloride buffer with or without 10 mM magnesium sulfate or HEPES (N-2-hydroxyethylpiperazine-N'-2-ethanesulfonic acid) buffer at pH 8.0 caused an increase in cell surface hydrophobicity. By determining the location of n-hexadecane droplets attached to cells by phase… (More)

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