Thermodynamics and H2 Transfer in a Methanogenic, Syntrophic Community
Fig 3
Alternative carbon and electron transport pathways in S. fumaroxidans under coculture growth conditions.
(A) Formate production via cytFDH. (B) Formate production via cFDH. (A and B) Simulations maximized ATP production with no minimum biomass requirement. The overall stoichiometry of each pathway corresponds to the alternative stoichiometry given in Eq 4. Substrates and products are indicated with purple and blue ovals, respectively, while reactions with and without estimates are indicated with green and orange arrows, respectively. Arrow thickness indicates relative flux values. Metabolite and reaction abbreviations are given in S4 Dataset.