Hyphomonas spp., Shewanella spp., and Other Marine Bacteria Lack Heterogeneous (Ladderlike) Lipopolysaccharides

AUTOR(ES)

Sledjeski, Darren D.

RESUMO

The lipopolysaccharides (LPS) of 19 marine bacteria were examined for size heterogeneities by using sodium dodecyl sulfate-polyacrylamide gel electrophoresis in conjunction with an LPS-specific silver staining method. Fifteen marine bacteria had an R-type LPS instead of the ladderlike LPS array characteristic of most bacteria. In addition, three marine bacteria also had a single large LPS molecule. Without constraints (e.g., surface masking), R-type LPS, a more hydrophobic molecule, predominates in Shewanella and Hyphomonas species and in other marine bacteria.

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