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Table 1 Flux constraints set for the different environmental scenarios discussed in the main text.

From: Metabolic network modeling of redox balancing and biohydrogen production in purple nonsulfur bacteria

Pathway/Reaction S1 general photoheterotrophic S2 constrained photoheterotrophic S3 photohet. on acetate with glyoxylate cycle S4 photohet. on acetate with CM cycle S5 photohet. on acetate with EMCoA pathway S6 anaerobic in the dark S7 aerobic in the dark
N2_up 0 0 0 0 0 0 0
O2_up 0 0 0 0 0 0  
Succ_ex 0 0 0 0 0   0
Prop_ex 0 0 0 0 0   0
Ac_ex 0 0 0 0 0   0
Form_ex 0 0 0 0 0   0
Hydrogen release (H2_ex) 0 0 0 0 0 0 0
Photosynthesis (Photo)       0 0
Calvin cycle (Rubisco)        0
oxidative pentose-phosphate pathway (PGluc::Rl5P)   0      
Entner-Doudoroff (PGluc::KDPG)   0      
oxidative TCA (AlKG::SuccCoA)   0 0 0 0   
reductive TCA (SuccCoA::alKG; AcCoA::Pyr)   0 0 0 0   0
Fumarate reductase (Fum::Succ)        0
Glyoxylate cycle (ICit::SuccGlyox)   0   0 0   
CM cycle (CitMal_synth)   0 0   0   
EMCoA pathway (HyBuCoA::CrotCoA)   0 0 0    
  1. In addition to the listed constraints, the uptake rate of the chosen substrate is set to 1 and all remaining substrate uptake rates are set to zero (not listed in the table). Considered substrates are succinate, malate, fructose (for S1, S2, S6 and S7), propionate (for S1, S2 and S7), and acetate (for S1, S3, S4, S5 and S7). Autotrophic growth (on CO2 and hydrogen mixture) was also considered for S1 and S2.