Table 2.

Invasion and invasion gene expression

Strain/plasmid% Invasionbβ-Galactosidasea(Miller units)
Φ(sipC′-lacZY+)Φ(invF′-lacZY+)Φ(prgH′-lacZY+)Φ(hilA′-lacZY+)
Wild type3.0  ± 0.672,700  ± 1101,400  ± 60890  ± 24280  ± 14
Δ(csrA)::Cam0.003  ± 0.001200  ± 925  ± 172  ± 329  ± 0
Δ(csrA)::Cam/csrA +c 3.3  ± 0.284,200  ± 1602,000  ± 601,200  ± 18460  ± 12
Δ(csrA)::Camsup8 0.019  ± 0.00673  ± 615  ± 234  ± 221  ± 1
Δ(csrA)::Camsup8/csrA +c 7.8  ± 1.13,800  ± 3701,500  ± 3920  ± 10440  ± 24
  • a Mean and standard error for strains tested at least in triplicate.

  • b Mean and standard error for strains tested at least in quadruplicate.

  • c The plasmid used was pCA132.