Pseudomonas,[6] a genus of Gram-negative bacteria Azotobacter,[7] a genus of Gram-negative bacteria Rhizobium,[8] a plant root-associated and plant differentiation-active genus of Gram-negative bacteria Agrobacterium,[9] a plant pathogen (oncogenic) genus of Gram-negative bacteria, also of biotechnologic use Escherichia coli,[6] a Gram-negative bacterium Enterococcus faecalis,[10] a Gram-positive bacterium Zymomonas mobilis, a Gram-negative facultative anaerobe Xanthomonas campestris,[11] a Gram negative bacterium which uses this pathway as main pathway for providing energy.