TABLE 3

Role of IcpB in aerotaxis in A. caulinodans

Growth condition and strainResponse time (s) to adaptation ± SD in a temporal assay for aerotaxisa
Without airWith air
Ammonium
    ORS57162.6 ± 4.157.2 ± 2.0
    AC30169.9 ± 1.261.8 ± 4.0
    AC30262.6 ± 1.358.8 ± 1.7
    AC30369.2 ± 3.362.5 ± 2.1
Nitrogen fixation
    ORS57172.6 ± 2.262.6 ± 2.1
    AC30148.9 ± 1.4*40.6 ± 1.5*
    AC30270.0 ± 3.262.4 ± 1.0
    AC30347.2 ± 3.6*41.7 ± 2.3*
  • a Cells were grown in minimal medium containing 10 mM chemical to be tested as the sole carbon and energy source.

  • * statistically significant difference (P < 0.05).