. 2013 Jan;79(1):74–80. doi: 10.1128/AEM.02184-12

Table 3.

Intracellular concentrations of intracellular metabolites in stationary-phase cells

Strain	Mean concn, mM (SD)
	Glutamate		GABA		SSA		Succinate
	pH 7.0	pH 4.0	pH 7.0	pH 4.0	pH 7.0	pH 4.0	pH 7.0	pH 4.0
EGD-e	0.55 (±0.06)	0.53 (±0.05)	0.43 (±0.05)	1.14 (±0.68)^a	0.41 (±0.41)	0.52 (±0.52)	0.24 (±0.05)	0.44 (±0.07)^a
argD::pLSV101	0.59 (±0.02)	0.48 (±0.06)	0.51 (±0.02)	0.60 (±0.01)^a^,^b	0.24 (±0.02)	0.34 (±0.02)^a	0.17 (±0.01)	0.34 (±0.04)^a
Δlmo0913	0.53 (±0.01)	0.45 (±0.02)^a^,^b	0.35 (±0.06)	3.24 (±1.83)^a^,^b	0.53 (±0.53)	0.61 (±0.61)^a	0.24 (±0.05)	0.54 (±0.24)

Statistically significant difference between acid-treated and non-acid-treated cells.

Statistically significant difference between wild-type and mutant strains under the conditions tested. A difference was identified to be statistically significant by using a paired Student t test (P < 0.05).