TABLE 2.

Growth rates of E. coli pfl and ackA mutants on glucose and xylose in minimal medium^b

Strain	Relevant genotype	Specific growth rate (h−1)
		Aerobic		Anaerobic
		Glucose	Xylose	Glucose	Xylose
W3110	Wild type	0.69	0.59	0.26	0.19
AH243	Δ(focA-pflB)	0.70	0.60	0.21	NGa
YK19	ackA202	0.64	0.57	0.22	NG

^aNG, no detectable growth.

^bCultures were grown in minimal medium with the indicated sugars and sodium acetate without pH control. See Methods for details.