FIG. 4.
Schematic representation of proposed pathways (solid arrows) and potential genes involved in the biosynthesis of glucose-1-phosphate (circled) and its role in the production of the precursors of EPS formation in A. ferrooxidans. Dotted arrows indicate suggested connections between glucose-1-phosphate and glycogen anabolism and catabolism, pentose phosphate pathway, glycolysis, gluconeogenesis, and the formation of EPS via glycosyltransferases (GTs).