TABLE 2.
Comparison of movement in liquid and plates
| PAK strain | Relevant genotypea | Normalized motility in liquidb | Normalized motility in semisolid agarc | Motility on solidified agare |
|---|---|---|---|---|
| PAK | Wild type | 1.0 | 1.0 | + |
| LMP9 | ΔmotAB | 0.85 | No expansiond | − |
| LMP13 | ΔmotCD | 0.68 | 0.55 | + |
| LMP54 | motY | 0.85 | 0.22 | − |
| LMP18 | motA motD | 0.68 | 0.29 | + |
| LMP49 | motB motC | 0.93 | No expansiond | − |
| LMP47 | motA motC | Nonmotile | Nonmotile | − |
| LMP20 | motB motD | Nonmotile | Nonmotile | − |
| LMP55 | ΔmotAB motY | 0.85 | No expansiond | − |
| LMP60 | ΔmotCD motY | Nonmotile | Nonmotile | − |
a
Gene designations correspond to the following PA numbers in the annotated genome: motA, PA1460; motB, PA1461; motC, PA4954; motD, PA4953; and motY, PA3526.
b
The swimming speeds were normalized to the wild-type value.
c
The Rates of radial expansion in 0.325% semisolid agar motility plates were normalized to the wild-type value.
d
No significant radial migration from the point of inoculation.
e
Motility on the surface of minimal swarming agar (0.5% agar).