FIG. 3.
Immunoelectron micrographs of V. vulnificus strains showing differential expression of CPS. Bacterial thin sections were immunolabeled with a type I-specific anti-CPS monoclonal antibody (7/G4-D2) and visualized with a gold-labeled secondary goat anti-mouse IgA conjugate (arrowheads) as described in the text. Strains included the following V. vulnificus phase variants and mutants: M06-24/O (A), M06-24/T (B), M06-24/31T (C), and CVD752 (D). Bars, 500 nm.