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Table 4 Growth inhibition zone (mm) of APEC χ7122, K3 (pst mutant) and CK3 (complemented) strains to oxidative stress generating compoundsa

From: Genome-wide transcriptional response of an avian pathogenic Escherichia coli (APEC) pst mutant

Strain

LB agar with:

 

Plumbagin b

H 2 O 2

PES

PMS

χ7122

8.5 ± 0.1

19.2 ± 0.2

15 ± 0.4

15.7 ± 0.4

K3

10.7 ± 0.6 c

23.0 ± 0.9

19.2 ± 0.5

20.7 ± 0.2

CK3

8.7 ± 0.3

21.9 ± 1.0

15.1 ± 0.3

16.7 ± 0.2

  1. aData presented are the means ± the standard deviations of six independent experiments.
  2. bCompounds used were 10 μl of plumbagin (53 mM), H2O2 (30% vol/vol), phenazine ethosulfate (15 mM) (PES), or phenazine methosulfate (PMS) (15 mM).
  3. cValues indicated in bold text are significantly different (P < 0.05) compared to the mean of the wild-type strain.