TABLE 4.
Extracellular protease activities of X. campestris pv. campestris strains in rich medium and minimal medium
| Strain | Extracellular protease activity (A366)a in:
|
|
|---|---|---|
| NYG | MMX | |
| 8004 (wild type) | 0.286 ± 0.039a | 0.144 ± 0.029a |
| NK2827 | 0.264 ± 0.020a | 0.253 ± 0.010b |
| CNK2827 | 0.270 ± 0.031a | 0.165 ± 0.011a |
| 8004* | 0.108 ± 0.035b | NTb |
| 8004* ΔhrpX | 0.276 ± 0.010a | NT |
| NK2827* | 0.276 ± 0.010a | NT |
a
Data are the means ± standard deviations of triplicate measurements; different letters indicate significant differences (P = 0.05). The experiment was repeated twice, and similar results were obtained.
b
NT, not tested.