Figure 2

Morphology of Δpga and ΔdspB. A CV staining of biofilms formed by WT, Δpga and ΔdspB cultured for 5 h in 12-well plates. Data are shown as means ± SD from three independent replicates. A two-tailed t-test was used to compare the biofilm quantities of WT and the Δpga or ΔdspB (***, p < 0.001). B Morphology of Δpga and ΔdspB under optical microscopy (OM; Gram staining), transmission electron microscope (TEM) and scanning electron microscope (SEM). The magnifications of the images are shown