TABLE 1 .

Doubling times and percentages of biomass assimilation of strains CUZ and NSS with different electron acceptors

Strain and electron acceptor	Equation	Avg doubling time (h) ± SD	Avg biomass assimilation (%) ± SD
CUZ
ClO4	2 C8H7O2− + 9 ClO4− + 2 H+ → 16 CO2 + 9 Cl− + 8 H2O	7 ± 2	41 ± 1
NO3	5 C8H7O2− + 36 NO3− + 41 H+ → 40 CO2 + 18 N2 + 38 H2O	10 ± 2	34 ± 3
O2	C8H7O2− + 9 O2 + H+ → 8 CO2 + 4 H2O	29.7 ± 0.4	NDa
NSS
ClO3−	C8H7O2− + 6 ClO3− + H+ → 6 Cl− + 8 CO2 + 4 H2O	4.3 ± 0.3	36
NO3−	5 C8H7O2− + 36 NO3− + 41 H+ → 40 CO2 + 18 N2 + 38 H2O	7.4 ± 1.1	26
O2	C8H7O2− + 9 O2 + H+ → 8 CO2 + 4 H2O	6	ND

^aND, not determined.