Table 3.

Inhibition zones of the wild type (WT) and promoter-exchange mutant strains (non-ind: non-induced, ind: induced) in mm against the human pathogens Escherichia coli (a, ATCC 25922), Staphylococcus aureus (b, ATCC 29213), Enterococcus faecalis (c, ATCC 29212), and Klebsiella pneumoniae (d, ATCC 700603). The corresponding agar well-diffusion bioassays were performed three times, with ten replicates for each sample. X. sto. = X. stockiae, X. ind. = X. indica, X. hom. = X. hominickii, X. sze. = X. szentirmaii, X. cab. = X. cabanillasii, X. bud. = X. budapestensis.

	sample	strain
		KJ12.1	KK7.4	X. sto.	X. ind.	X. hom.	X. sze.	X. cab.	X. bud.
a	WT	12.4 ± 0.2	12.6 ± 0.1	11.4 ± 0.2	17.8 ± 0.2	10.2 ± 0.2	12.6 ± 0.2	18.4 ± 0.2	18.8 ± 0.2
	non-ind	0	0	0	9 ± 0.2	0	0	8.8 ± 0.2	0
	ind	12.4 ± 0.3	14.6 ± 0.3	16 ± 0.2	18.2 ± 0.2	11.8 ± 0.2	16.8 ± 0.3	18.8 ± 0.2	18.8 ± 0.2
b	WT	16.8 ± 0.2	17.2 ± 0.2	15.4 ± 0.2	23.4 ± 0.3	13.8 ± 0.2	14.8 ± 0.2	22.6 ± 0.2	21.8 ± 0.2
	non-ind	0	0	0	0	0	0	0	0
	ind	16.6 ± 0.2	19.6 ± 0.2	21 ± 0.3	25 ± 0.2	16 ± 0.2	20.8 ± 0.2	22.6 ± 0.2	22.4 ± 0.2
c	WT	11.2 ± 0.3	14.4 ± 0.2	12.6 ± 0.2	17 ± 0.2	13.2 ± 0.2	11.5 ± 0.3	19.4 ± 0.3	16.6 ± 0.3
	non-ind	0	0	0	0	0	0	0	0
	ind	14.6 ± 0.2	17.2 ± 0.3	18.6 ± 0.2	19.6 ± 0.3	15.6 ± 0.4	11.8 ± 0.2	20.4 ± 0.3	18.2 ± 0.2
d	WT	13.5 ± 0.2	13 ± 0.2	8.4 ± 0.3	18 ± 0.1	9.2 ± 0.2	10.7 ± 0.2	18.1 ± 0.2	13.3 ± 0.2
	non-ind	0	0	0	0	0	0	0	0
	ind	14.3 ± 0.2	15.2 ± 0.2	16.4 ± 0.1	20.3 ± 0.2	12.6 ± 0.2	12 ± 0.2	22.2 ± 0.3	18.4 ± 0.2