Fig. 4From: An efficient method for markerless mutant generation by allelic exchange in Clostridium acetobutylicum and Clostridium saccharobutylicum using suicide vectorsSolvent, acetoin and acid production by C. acetobutylicum ∆cac1502 ∆cac3535 ∆upp and C. acetobutylicum ∆cac1502 ∆cac3535 ∆upp ∆alsD in batch culture at pH4.8 in SM medium. Cultures were ran for 72 hBack to article page