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Table 3 Comparison of doubling time distribution parameters (Eq. 1) for E. coli in LB, or in LB with sonicated and heat-killed cells 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) α μτ1 ± στ1 β μτ2 ± στ2 Δμτ μτ ± στ
Control LB (S) 0.48 18.0 ± 0.678 0.52 19.9 ± 2.48 1.87 17.6 ± 0.708
Conditioned LB (S) 0.21 17.8 ± 0.553 0.79 18.8 ± 1.99 1.03 17.5 ± 1.06
Control LB (L) 0.35 18.2 ± 0.660 0.65 20.0 ± 2.11 1.79 17.9 ± 0.645
Conditioned LB (L) 0.31 19.1 ± 0.627 0.69 20.1 ± 2.10 0.994 18.9 ± 0.700
Sonicated, Heat-killed Cells in LB (L) 0.54 21.0 ± 0.690 0.46 21.3 ± 2.58 0.300 21.1 ± 0.646