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Fig. 3 | Biotechnology for Biofuels

Fig. 3

From: Elucidation of the roles of adhE1 and adhE2 in the primary metabolism of Clostridium acetobutylicum by combining in-frame gene deletion and a quantitative system-scale approach

Fig. 3

Electron flux map of the control, ΔadhE1 and ΔadhE2 strains in acidogenesis (a), solventogenesis (b), and alcohologenesis (c). The arrows for hydrogenase (red), ferredoxin-NAD + reductase (blue), and ferredoxin-NADP + (green) in vivo fluxes are presented. All values are normalized to the flux of the initial carbon source [millimoles per gram of dry cell weight (DCW) per hour]. Glucose flux is normalized to 100 for acidogenesis and solventogenesis, and the sum of glucose and half of the glycerol is normalized to 100 for alcohologenesis

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