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Table 1 Comparison of TBARS content of twenty-one E. coli belonging to different pathovars and phylogenetic groups during exponential growth in pooled human urine and LB broth

From: Variation in endogenous oxidative stress in Escherichia coli natural isolates during growth in urine

  Urine LB broth Urine vs LB
Strains Phylo-groups Virulence groups TBARS* p** TBARS p p
ABU 57 A ABU 9.0 ± 1.7 p = 0.835 7.1 ± 0.7 p = 1.000 p = 0.995
ABU83972 B2 ABU 7.3 ± 1.0   6.4 ± 0.1   p = 1.000
ABU 5 D ABU 7.2 ± 1.1 p = 1.000 6.3 ± 1.1 p = 1.000 p = 1.000
IH11128 B2 UPEC 6.7 ± 2.0 p = 1.000 6.1 ± 0.4 p = 1.000 p = 1.000
IAI 74 B2 UPEC 6.6 ± 0.9 p = 1.000 6.1 ± 0.7 p = 1.000 p = 1.000
ABU 63 B2 ABU 6.6 ± 1.2 p = 1.000 5.8 ± 0.9 p = 1.000 p = 1.000
IAI 39 D UPEC 6.6 ± 1.5 p = 1.000 7.1 ± 0.7 p = 1.000 p = 1.000
CFT073 B2 UPEC 6.3 ± 0.9 p = 0.999 5.9 ± 0.7 p = 1.000 p = 1.000
ABU 27 B2 ABU 5.6 ± 0.9 p = 0.905 4.9 ± 0.5 p = 0.976 p = 1.000
ABU 64 B2 ABU 5.6 ± 0.4 p = 0.866 6.8 ± 0.2 p = 1.000 p = 1.000
UMN 026 D UPEC 5.2 ± 1.1 p = 0.458 6.2 ± 0.6 p = 1.000 p = 1.000
ED1a B2 commensal 5.2 ± 1.1 p = 0.542 4.9 ± 0.2 p = 0.979 p = 1.000
536 B2 UPEC 5.1 ± 1.0 p = 0.458 6.3 ± 1.7 p = 1.000 p = 1.000
J96 B2 UPEC 5.0 ± 1.1 p = 0.653 5.3 ± 1.4 p = 0.998 p = 1.000
ABU 20 B2 ABU 4.9 ± 0.9 p = 0.307 4.3 ± 1.2 p = 0.743 p = 1.000
IAI1 B1 commensal 4.3 ± 0.7 p = 0.075 4.4 ± 0.3 p = 0.789 p = 1.000
Sakai E EHEC 3.9 ± 0.4 p = 0.016 4.6 ± 0.7 p = 0.900 p = 1.000
UTI 89 B2 UPEC 3.8 ± 0.6 p = 0.015 5.1 ± 0.1 p = 0.996 p = 1.000
ABU 38 B1 ABU 3.8 ± 0.8 p = 0.012 4.5 ± 0.1 p = 0.838 p = 1.000
ABU 62 B1 ABU 3.5 ± 0.9 p = 0.005 6.1 ± 0.8 p = 1.000 p = 0.560
MG1655 A K-12 laboratory strain 2.6 ± 0.5 p = 0.0001 6.3 ± 1.4 p = 1.000 p = 0.546
  1. * TBARS values are expressed in micromoles per 1011 cells. The data shown are means (mean ± SD) of three independent experiments in different batches of urine and LB broth. Differences between means were evaluated for statistical significance using the Tukey's HSD (Honestly Significant Difference) test.
  2. **p values of < 0.05 were considered significant. compared to ABU83972 under the same conditions.