TABLE 4.

Colony enumeration-derived growth parameters of L. monocytogenes 10403S and mutants at 37°C^a

Carbon source	PTS dependentb	Strain or genotype	μmax [log(CFU/ml)/h]	Nmax [log(CFU/ml)]
Glucose	Y	10403S	0.23 ± 0.01 C	8.36 ± 0.34 A
		ΔsigH	0.18 ± 0.02 DEF	8.27 ± 0.17 A
		ΔsigL	0.32 ± 0.03 A	8.63 ± 0.14 A
		ΔsigH ΔsigL	0.22 ± 0.02 CDE	8.72 ± 0.08 A
		Δlmo0027	0.24 ± 0.01 BC	8.62 ± 0.07 A
		ΔsigH Δlmo0027	0.17 ± 0.01 DEF	8.88 ± 0.04 A
		ΔsigL Δlmo0027	0.15 ± 0.01 F	8.96 ± 0.06 A
		ΔsigH ΔsigL Δlmo0027	0.15 ± 0.01 F	8.83 ± 0.15 A
Cellobiose	Y	10403S	0.22 ± 0.01 CD	8.43 ± 0.41 A
		ΔsigH	0.17 ± 0.01 EF	8.41 ± 0.21 A
		ΔsigL	0.28 ± 0.01 AB	8.71 ± 0.11 A
		ΔsigH ΔsigL	0.22 ± 0.03 CD	8.63 ± 0.26 A
Glycerol	N	10403S	0.20 ± 0.01 CD	7.99 ± 0.20 A
		ΔsigH	0.22 ± 0.02 CDE	8.09 ± 0.37 A
		ΔsigL	0.21 ± 0.02 CDE	8.09 ± 0.20 A
		ΔsigH ΔsigL	0.21 ± 0.02 CDE	8.21 ± 0.35 A
		Δlmo0027	0.20 ± 0.01 CDE	8.07 ± 0.23 A
		ΔsigH Δlmo0027	0.19 ± 0.01 CDEF	8.13 ± 0.22 A
		ΔsigL Δlmo0027	0.18 ± 0.01 DEF	8.25 ± 0.23 A
		ΔsigH ΔsigL Δlmo0027	0.21 ± 0.01 CDE	8.16 ± 0.20 A

^aResults are means ± standard deviations for each bacterial strain tested in triplicate. Means followed by the same letter within a given column are not statistically different from each other (overall α, 0.05 by Tukey's honestly significant difference test).

^bY, yes; N, no.