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Table 2 Comparison of doubling time distribution parameters (Eq. 1) for E. coli, E. coli O157:H7, and Citrobacter in LB, LB + ethyl acetate (EA, 75 mM), or MM at 37°C; S = Stationary phase, L = Log Phase.

From: Evidence for a bimodal distribution of Escherichia coli doubling times below a threshold initial cell concentration

   CI ≤ 100 CFU mL-1 CI ≥ 1000 CFU mL-1
Organism (phase) Medium LB α μτ 1 ± στ1 β μτ2 ± στ2 Δμτ μτ ± στ
E. coli (S) LB 0.48 18.0 ± 0.678 0.52 19.9 ± 2.48 1.87 17.6 ± 0.708
E. coli (L) LB 0.35 18.2 ± 0.660 0.65 20.0 ± 2.11 1.79 17.9 ± 0.645
E. coli (L) LB+EA 0.15 19.6 ± 0.999 0.85 21.7 ± 2.25 2.13 21.4 ± 2.06
E. coli (L) MM 0.30 51.1 ± 1.75 0.70 56.9 ± 8.32 5.77 52.0 ± 2.09
E. coli O157:H7 (L) LB 0.40 18.5 ± 0.401 0.60 20.1 ± 2.01 1.60 18.1 ± 0.438
Citrobacter (L) LB 0.6 42.5 ± 3.75 0.40 50.7 ± 6.50 8.24 42.4 ± 3.72