1887

Abstract

Summary

Cell-surface hydrophobicity of (formerly was tested by aqueous two-phase partitioning and hydrophobic interaction chomato-graphy. The hydrophobicity of greatly exceeded that of subsp. and . A partition coefficient (PC) of hydrophobicity in the two-phase system was determined for PC was dependent on pH and the PC value was increased by greater than 20-fold at pH 2.5. Lithium cations increased PC, indicating a net negative surface charge. The presence of urea prevented the relative loss of hydrophobicity at raised pH. Exposure of to proteolytic enzymes reduced the ability of the bacteria to adhere to human polymorphonuclear neutrophils (PMN). These findings suggest that possesses protein-associated hydrophobic factors that are responsible for the nonopsonic adherence to PMN cell membranes.

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1990-06-01
2022-12-09
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