| comparison of siderophore production and utilization in pathogenic and environmental isolates of yersinia enterocolitica. | yersinia enterocolitica strains of serotypes lethal to mice have been reported previously to produce an endogenous siderophore. in this study, an ethyl acetate-extractable siderophore was characterized and given the name yersiniophore. yersiniophore was produced by 16 of 16 human isolates of serotypes o:4, o:4,32, o:8, o:21, and one nonhuman isolate of serotype o:21. it was not produced by isolates of serotype o:3, o:5, or o:9. one strain of yersinia pseudotuberculosis produced yersiniophore, bu ... | 1994 | 8126201 |