Fig 5.

Growth defect and altered cell morphology of the Δhfq strain. (A) A. tumefaciens wild type (WT), the Δhfq mutant, the complemented mutant (Δhfq+hfq), and corresponding control strains harboring the empty vector (v) (WT+v and Δhfq+v) were grown in YEB complex medium, and OD₆₀₀ values were plotted over time. Three independent experiments gave comparable results. (B) Microscopic images were taken of A. tumefaciens strains from cultures grown in YEB medium to optical densities indicated above the images. Y-shaped cells are indicated by arrows.