Table 5.
Growth of environmental E. coli RpoS mutants on glucose or on the poor carbon source succinate or fumaratea
| Substrate | Generation time (min) of strain: |
||||
|---|---|---|---|---|---|
| K-12 | K-12ΔrpoS | ECA01 | ECA01Suc++ | AZB07 | |
| Glucose | 93.0 ± 2.1 | 85.1 ± 3.5 | 79.5 ± 3.8 | 78.1 ± 8.8 | 76.3 ± 1.0 |
| Succinate | 1,347.1 ± 62.9 | 141.9 ± 5.1 | 2,403.0 ± 105.2 | 90.8 ± 5.9 | 75.4 ± 2.7 |
| Fumarate | 832.1 ± 100.2 | 129.6 ± 13.3 | 537.4 ± 68.5 | 81.1 ± 7.5 | 118.9 ± 1.2 |
a
ECA01Suc++ is a succinate-selected RpoS mutant from ECA01, and AZB07 is an RpoS mutant isolated from beach sand. Values are means ± standard errors of the means, where n = 3.