Figure 1.

Effects of the urea concentration in M9‐based urea medium on the lagphase, maximum growth rate, stationary phase, and final pH. (a) the lagphase (λ) of Klebsiella pneumoniae related to the urea concentration. (b) the final OD₆₃₀ reached by K. pneumoniae related to the urea concentration. (c) the maximum growth rate (µ_m) of K. pneumoniae related to the urea concentration. (d) the final difference in absorbance at 557 nm and 630 nm (relates to the pH) caused by K. pneumoniae and jack bean urease related to the urea concentration