Figure 1From: Metabolic engineering of Caldicellulosiruptor bescii yields increased hydrogen production from lignocellulosic biomassA simplified version of predicted metabolic pathways for fermentation, glycolysis and electron transfer in Caldicellulosiruptor bescii . (1) L-Lactate dehydrogenase; (2) Pyruvate-ferredoxin oxidoreductase; (3) Phosphotransacetylase; (4) Acetate kinase; (5) Bifurcating (reduced ferredoxin: NADH-dependent) hydrogenase. The thick grey arrows represent potential heterologous pathways that do not exist in Caldicellulosiruptor species but could be used for renewable fuel and chemical production.Back to article page