Table 2 Bacterial strains used in this study

PAO1

Wild-type Pseudomonas aeruginosa

[29]

PA3553::lux

Transposon mutants and transcriptional fusion, homolog to pmr gene (pmrF) responsible for the addition of aminoarabinose to lipid A

[26]

PA4774::lux

Transposon mutant and transcriptional fusion, homolog to speE gene responsible for spermidine synthesis

[26]

ALF3

Wild-type Pseudomonas syringae pv. syringae

[28]

ALF3::Tn5–1

ALF3 with random transposon insertion conferring MtDef4 insensitivity, Mu_4–1

This paper

ALF3::Tn5–2

ALF3 with random transposon insertion conferring MtDef4 insensitivity, Mu_5–1

This paper