Figure 2From: Molecular and bioengineering strategies to improve alginate and polydydroxyalkanoate production by Azotobacter vinelandiiOrganization of the A. vinelandii alginate and PHB biosynthetic genes. A model for the regulation of the synthesis of these polymers is presented. Green lines: positive regulation; red lines negative regulation; dashed lines indicate unknown intermediates or unknown mechanism of regulation. Promoters are indicated as colored rectangles.Back to article page