TABLE 3.

Doubling times of growth for the wild type and grxC, gshB, trxC grxC, and trxC gshB mutants under aerobic and anaerobic conditions and with a shift from semiaerobic to aerobic conditions

Straina	Doubling time (h) under conditionb
	Aerobic	Anaerobic	Shift from semiaerobic to aerobic
SB1003	2.1 ± 0.15	12.2 ± 0.66	2.5 ± 0.16
SB trxC	2.2 ± 0.20	12.0 ± 0.70	2.6 ± 0.21
SB grxC	3.6 ± 0.3	12.0 ± 0.55	5.0 ± 0.33
SB trxC grxC	4.0 ± 0.35	12.8 ± 0.36	7.2 ± 0.25
SB gshB	6.0 ± 0.33	12.0 ± 0.86	10.0 ± 0.16
SB trxC gshB	6.8 ± 0.25	13.5 ± 0.55	11.0 ± 0.25
SB grxC gshB	6.2 ± 0.22	12.3 ± 0.54	10.5 ± 0.33

^aFor strain characteristics, see Table 1.

^bMean values ± standard deviations from three independent experiments.