TABLE 2.

Effect of signal molecules on maximum growth rates, doubling times, and cell yields of starved cells of strain G100

Signal moleculeStarvation conditionsMaximum growth rate (h−1)Doubling time (h)Cell yield (NTUa)
cAMPOxic, 4°C0.1073 ± 0.0081b6.46b12.75 ± 1.04b
Anoxic, 4°C0.0761 ± 0.0153b9.11b12.02 ± 1.11b
Oxic, 20°C0.1191 ± 0.0060b5.82b12.34 ± 1.17
Anoxic, 20°C0.0709 ± 0.0080b9.78b12.69 ± 0.67
AMPOxic, 4°C0.0936 ± 0.0104b7.41b10.65 ± 1.03b
Anoxic, 4°C0.0453 ± 0.0069b15.30b8.27 ± 0.76b
Oxic, 20°C0.0709 ± 0.0118b9.79b11.36 ± 0.43
Anoxic, 20°C0.0578 ± 0.0065b11.99b12.31 ± 0.67
BHLOxic, 4°C0.0879 ± 0.00757.899.16 ± 0.67
Anoxic, 4°C0.0927 ± 0.02027.489.69 ± 0.74
Oxic, 20°C0.1196 ± 0.01358.029.63 ± 0.50
Anoxic, 20°C0.0869 ± 0.00957.988.97 ± 0.65
Butyric acid plus homoserine lactoneOxic, 4°C0.0851 ± 0.00978.159.51 ± 0.82
Anoxic, 4°C0.0864 ± 0.03738.029.19 ± 1.10
Oxic, 20°C0.1402 ± 0.00734.9410.44 ± 0.85
Anoxic, 20°C0.1042 ± 0.00716.658.58 ± 0.52
  • a NTU, nephelometric turbidity units.

  • b Value was significantly (P < 0.001) increased in the presence of signal compound compared to control level.