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Pathways of 1,2-PD catabolism in Salmonella and the putative pathway of 1,2-PD catabolism in L. innocua Lin11. The pdu pathway steps in the upper part of the diagram (above the dashed line) appear to occur in both species. The 2-methylcitric acid cycle reactions shown in the lower part of the diagram do not appear to take place in Listeria. The figure has been adapted from work published in references 3, 4, and 23.
