Table 1.

Antibacterial Activity of Polymyxin B₁ and E₂ against Xoo and Xoc.

Metabolite	Xoo			Xoc
	200 μg/ml (%)	100 μg/ml (%)	EC50 (μg/ml)	200 μg/ml (%)	100 μg/ml (%)	EC50 (μg/ml)
Polymyxin B1	100	100	0.19 ± 0.09	100	100	0.32 ± 0.05
Polymyxin E2	100	100	0.21 ± 0.04	100	100	0.41 ± 0.04
Zhongshengmycin	100	100	0.31 ± 0.06	100	100	0.73 ± 0.07
Bismerthiazol	74.1 ± 1.6	53.1 ± 2.7	77.48 ± 2.62	81.0 ± 2.5	65.2 ± 3.7	85.30 ± 1.06