Table 2.

Organic acid levels from various photoautotrophically grown strains

StrainSuccinateaFumarateaMalatea,cIsocitratea
WTd 2.602.551.6 ± 0.62.63
SDH Defe 0.450.030.5 ± 0.21.28
NDH-1 Defb 0.050.020.2 ± 0.13.40
NDH-2 Def0.220.080.8 ± 0.22.24
NdhD1/D2 Def0.110.100.3 ± 0.21.44
NdhD3/D4 Defb 0.110.030.6 ± 0.43.87
NdhD5/D6 Def1.561.221.1 ± 0.66.62
  • a Values are expressed as micromoles of organic acid per milligram of chlorophyll.

  • b Bubbled with >3% CO2 balanced with air.

  • c Malate concentrations were adjusted for the efficiency of the derivatization reaction (≅10%). Standard deviations for all samples were ≤8% of the average values presented, except for malate.

  • d WT, wild type.

  • e Def, deficient.