Figure 6.
Expression of MR/P fimbriae is phase-variable and induced during UTI. A, Immunogold electron microscopy of wild-type P. mirabilis HI4320 labeled with gold particles targeting the MrpH tip adhesin. The cell on the left is expressing MR/P fimbriae, and the cell on the right is not. Bar, 500 nm. B, The amount of MR/P fimbriae present positively correlates with murine bladder colonization. Data were obtained seven days post-inoculation. Modified with permission from Journal of Bacteriology vol 191, page 1385 (166).