Figure 4.

Transmission electron microscopy of negatively stained exopolysaccharides isolated from Prevotella intermedia strains 17 culture supernatants. Note the fine fibrous structures that are formed in bundles. Bar = 500 nm.

Yamanaka et al. BMC Microbiology 2009 9:11   doi:10.1186/1471-2180-9-11
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