FIG. 7.

Transmission immunoelectron microscopy of various E. coli strains. Strain NM554 in log phase was treated with anti-UMP kinase antiserum, as described in Materials and Methods, and immunogold stained with (a) or without (b) (cross section) silver amplification staining. Strain NM554, either in log phase (c) or in stationary phase (d), was treated with anti-UMP kinase antiserum and immunogold stained. Strains 14:40-42 (e) and NM554 (f) in log phase were treated with anti-UMP kinase antiserum (e) or with anti-CMP kinase MAbs (f) and immunogold stained.