TABLE 1.

Characterization of AOC test organism luminescent mutants^a

Strain	Mean doubling time (min)	Mean luminescence activity	Estimated AOC assay sensitivity (μg of acetate C equivalents · liter−1 per 90-s RLU)
P-17	78.8 ± 10	N/A	N/A
P-17 GF8	88.6 ± 3	1,108 ± 82	0.67
P-17 I5	88.6 ± 3	1,911 ± 151	ND
NOX	124 ± 3	N/A	N/A
NOX GF3	109 ± 21	692 ± 127	0.012
NOX I3	125 ± 6	1,092 ± 338	ND

^aN/A, not applicable; ND, not determined; RLU, relative light unit. Values shown are mean ± standard deviations from three or four replicates. All values were determined in rich media without luminescence inducers.