Fig. 3From: Metabolic engineering of Bacillus subtilis for chiral pure meso-2,3-butanediol productionMetabolic distribution of reducing power [H] in B. subtilis mutants. The arrows represent the delivery of the [H] in NADH, and the dashed arrows represent the creation of the [H]. The acetoin synthesis and breakdown pathway are indicated in the oval frame. Overexpressed genes are underlined. Disrupted pathway steps ar indicated by broken arrows Back to article page