Table 1 Bacterial strains used

Popeye-1

STEC; O157:H7

stx2; stx2c United States 2006 spinach-associated outbreak strain.

[12]

EDL933

STEC; O157:H7

stx1; stx2

[23]

TSA14

STEC O126:H11

stx1

[23]

JLM281

recA-lacZ reporter strain derived from laboratory strain MC4100

recA is used as a measure of the SOS response to DNA damage in E. coli

[24]

JLM165

LEE4-lacZ reporter strain

LEE4 encodes the EPEC and EHEC secreted proteins (Esps)

[25]

KMTIR3

LEE5-lacZ reporter

LEE5 encodes Tir and intimin

[26]

mCAMP

bla-lacZ reporter

β-lactamase

[25]

MG1655

Used as susceptible host strain for bacteriophage plaque assays.

[27]