Model of siderophore, IAA, sulfur, and GSH metabolic pathways in EG16 inferred from the genome of Enterobacter cloacae ATCC 13047. Colored text boxes represent the different metabolic pathways, with yellow for the siderophore biosynthesis pathway, purple for the IAA biosynthesis pathway, dark blue for the common part of the siderophore and IAA biosynthesis pathways, green for the sulfur metabolic pathway, light blue for the GSH biosynthesis pathway, and red for the l-methionine biosynthesis pathway.