TABLE 2.

Growth parameters of M. acetivorans wild-type and mutant strains

Acetate concn (mM)Wild typeaΔtbp2 strainaΔtbp3 straina
Generation time (h)Maximum A600Lag time (days)bGeneration time (h)Maximum A600Lag time (days)bGeneration time (h)Maximum A600Lag time (days)b
5045.4 ± 3.90.45 ± 0.0210.9 ± 1.551.8 ± 5.90.36 ± 0.0212.9 ± 1.463.0 ± 8.80.30 ± 0.0216.9 ± 1.6
2069.9 ± 5.10.18 ± 0.0213.5 ± 2.973.8 ± 11.10.15 ± 0.0214.4 ± 1.2121 ± 370.13 ± 0.0230.1 ± 2.9
  • a Cultures were fully adapted to growth on acetate. All values are the means ± standard deviations of 7 replicate cultures.

  • b Time required to reach mid-exponential phase of growth.