Figure 1

Hemolytic activities of some of the Tn4351 insertion mutants ofR. anatipestifer strain SX on duck blood agar. Three mutants with initial defects in hemolytic activity that were not reproducible were not labelled and mutants with mutations in 11 genes (M4, M5, M8, M12, M13, M14, M15, M17, M19, M20, and M22) are not shown.