Table 2. The CCCP₅₀ values of S. maltophilia KJ, its isogenic creBC mutant (KJΔBC), and the complementary strains.

Strain	CCCP50a (μg/ml)
KJ	33.4 ± 1.0
KJΔBC	43.2 ± 0.4
KJ(pRK415)	31.4 ± 1.1
KJΔBC(pRK415)	24.4 ± 0.8
KJΔBC(pCreB)	39.8 ± 8.5
KJΔBC(pCreB(D55E))	31.9 ± 1.8

^a CCCP₅₀ is defined as the required CCCP concentration at which the fifty percent of bacterial swimming is inhibited.