TABLE 3.

Relative intracellular ATP and NADH measurements for L. monocytogenes WT and Δhpf mutant cultures at 72 h^a

Strain or P value
	ATPb	XTT reduction (NADH)c
WT	1.1 ± 0.1	1.3 ± 0.2
Δhpf mutant	5.34 ± 1.7	5.04 ± 1.4
P value	0.022	0.011

^aEach value is the mean ± standard deviation from four biological replicates.

^bRelative luminescence units per CFU normalized to the value for the WT.

^cAbsorbance at 450 nm per CFU normalized to the value for the WT.