Table 1.

Relative reduction state of UQ-1,areflecting the redox state of the PQ pool, in different strains at various light intensities as measured with a Q electrode

Light intensity (μmol photons m−2 s−1)Relative UQ-1 reduction state
WTbSDH DefcNDH-2 DefSDH Def/ NDH-2 DefCyd Def/ CtaII Def SDH Def/ Cyd Def/ CtaII DefPSII DefSDH Def/ PSII Def CtaI DefSDH Def/ CtaI Def NDH-1 DefPSI Def
00.570.260.150.030.410.200.550.381.001.000.160.46
40.540.130.160.050.390.150.500.370.630.430.150.48
80.510.120.160.020.350.120.450.350.580.160.150.55
150.480.080.120.020.320.070.400.170.460.100.140.80
300.400.070.030.030.280.050.230.120.320.040.120.98
700.150.020.010.010.180.020.180.100.250.010.091.00
3500.080.010.010.000.040.010.050.030.150.000.031.00
>1,0000.020.000.000.000.010.000.000.000.150.000.001.00
  • a The relative reduction state of UQ-1 was calculated as follows: [UQH2]/([UQ] + [UQH2]).

  • b WT, wild type.

  • c Def, deficient.