Analysis of the polyamines levels in EIEC strains complemented or not with a functional copy <i>cadC</i> gene.

Values reported are in nmol per 108 cells and represent the average ± standard deviations. E. coli ULS655 (MG1655 cadC) has been used as reference. N-SPD: Acetyl spermidine; PUT: Putrescine; CAD: Cadaverine; SPD: spermidine. cadC+: strain carrying the pCC55 plasmid; cadC -: strain carrying the pACYC184 vector. Student's t tests were performed comparing PUT, SPD, NSPD and CAD concentrations in CadC complemented EIEC strains with the polyamine concentration detected in the corresponding wt (cadC−) strains. *denotes 0.05>p≥0.01; **denotes p<0.01. Analysis of the polyamines levels in EIEC strains complemented or not with a functional copy cadC gene.