Figure 12. Chitinases and chitin binding proteins do not influence growth of L. monocytogenes in J774 macrophage like cells. J774 cells were grown on glass coverslips and infected with wild type and chitinase/chitin binding protein knock out strains (ΔchiA, ΔchiB, Δlmo2467 and ΔchiA Δchib Δlmo2467) of L. monocytogenes. Extracellular bacteria were killed by adding gentamicin. At different time points coverslips were removed, host cells lysed and plated on LB agar media. The resulting numbers of CFUs for each strain at each time point has been plotted.