. 2013 Dec 5;14(12):23711–23735. doi: 10.3390/ijms141223711

Table 4.

Sensitivity of the wild-type Rhizobium leguminosarum bv. trifolii 24.2 and the pssA mutant Rt270 strains to various antibiotics.

Antibiotics	Growth inhibition zone (mm) ^*

	Rt24.2 (wt)	Rt270 (pssA)	MM3 (pssD)	MM4 (pssJIHGF)
Gentamicin	28 ± 3 ^b	30 ± 2 ^b	36 ± 3 ^a	37 ± 3 ^a
Tetracycline	52 ± 4 ^a	49 ± 3 ^a	58 ± 3 ^a	54 ± 3 ^a
Chloramphenicol	54 ± 4 ^a	44 ± 3 ^b	58 ± 2 ^a	56 ± 4 ^a
Erythromycin	18 ± 2 ^a	12 ± 2 ^b	16 ± 2 ^a	17 ± 2 ^a
Neomycin	21 ± 3 ^a	11 ± 2 ^b	24 ± 2 ^a	26 ± 3 ^a
Ampicillin	12 ± 2 ^b	0 ± 0 ^c	23 ± 2 ^a	27 ± 2 ^a
Penicillin G	6 ± 1 ^a	0 ± 0 ^b	7 ± 1 ^a	6 ± 2 ^a
Amoxicillin	11 ± 2 ^b	0 ± 0 ^c	16 ± 2 ^a	17 ± 2 ^a
Bacitracin	13 ± 2 ^a	0 ± 0 ^b	10 ± 3 ^a	9 ± 3 ^a
Oxocillin	10 ± 2 ^a	0 ± 0 ^b	7 ± 1 ^a	6 ± 2 ^a
Polimyxin B	10 ± 1 ^a	0 ± 0 ^b	11 ± 2 ^a	12 ± 2 ^a

Growth inhibition zones were determined after four-day incubation at 28 °C. Given values are averages of three independent experiments;

^a,b,c

indicate statistically significant differences between analyzed strains in the presence of a particular antibiotic (p value < 0.05; ANOVA, Tuckey’s test).