Table 4.

Minimal inhibitory concentrations for the tested isolates

Antibiotics	Isolate	pH 5_R2_1_I_A Methylobacterium tardum	pH 5_R2_1_I_B Bradyrhizobium erythrophlei	pH 5_R2_1_II_A Cupriavidus metallidurans	pH 5_R2_2_I_B Brevibacterium halotolerans	pH 5_R2_2_I_A Bacillus subtilis	pH 5_R2_2_II_A Bacillus subtilis	pH 5_R2_5_I_B Bacillus licheniformis	pH 7_R2F_2_A Bacillus pumilus	pH 7_R2F_2_C Bacillus aerophilus	pH 9_R2_3_II_A Micrococcus yunnanensis	pH 9_R2_5_I_B Bacillus pumilus	pH 9_R2_5_II_B Bacillus clausii	pH 9_R2_5_I_C Bacillus safensis	r2a5R0,2 Bacillus licheniformis	r2a5R0,5 Bacillus licheniformis	ms2R0,5 Bacillus thermoamylovorans	pH7_anox_R2 Bacillus licheniformis	pH9_R2IIA Paenibacillus campinasensis	pH9_R2IID Bacillus timonensis
Max. concentration: 256 μg/ml
Amoxicillin/clavulanic acid		2	256 a	1.5	2	3	0.5	7	3	0.25	0.75	2	0.19	3	16	12	0.19	3	256 a	2
Cefotaxime		12	256 a	1	2	8	16	64	256 a	128	0.75	16	32	256 a	24	32	32	256 a	12	32
Ceftriaxone		1.5	256 a	0.5	1.5	0.38	12	256 a	32	16	0.19	4	12	24	24	12	8	64	12	48
Linezolid		256 a	256 a	256 a	1	1	0.75	1	2	1.5	1	0.75	1	2	1.5	1	1	2	6	1
Penicillin G		3	256 a	3	8	0.75	0.5	256 a	0.38	0.064	0.094	256 a	24	0.25	24	6	4	0.75	24	1
Ampicillin		256 a	256 a	1.5	2	3	16	256 a	2	0.25	0.5	1.5	24	2	24	8	2	3	256 a	2
Colistin		256*	256a	24	32	32	64	64	48	12	2	32	3	24	32	32	64	24	48	16
Clarithromycin		2	256a	2	0.094	0.064	0.064	0.38	0.125	0.064	4	0.064	256a	0.5	0.064	256a	256a	0.032	256a	0.032
Clindamycin		256*	256a	256a	0.5	0.75	0.5	12	3	2	0.25	24	256a	4	4	8	1	4	256a	2
Doxycycline		1.5	256a	0.064	0.047	0.094	0.19	0.25	0.19	0.094	0.25	0.064	0.25	0.125	0.125	0.25	0.75	0.38	0.125	0.19
Gentamicin		8	96	32	0.094	0.094	0.75	0.38	0.125	0.064	0.38	0.5	0.064	0.094	0.19	0.75	0.125	0.064	0.75	0.064
Vancomycin		256a	256a	0.75	256a	1	2	3	1.5	1	0.19	2	0.75	0.75	1	8	2	2	4	1.5
Max. concentration: 32 μg/ml
Ciprofloxacin		6	32 a	0.016	0.047	0.064	0.064	0.125	0.19	0.094	0.75	0.032	0.75	0.094	0.094	0.047	0.19	0.125	0.125	0.125
Levofloxacin		3	32 a	0.047	0.094	0.125	0.094	0.19	0.25	0.125	1.5	0.094	2	0.125	0.094	0.064	0.38	0.125	0.094	0.094
Meropenem		32 a	32 a	0.125	0.064	0.19	0.094	0.19	0.25	0.094	0.47	0.094	1	0.25	19	19	0.38	0.38	3	0.38
Moxifloxacin		0.25	32 a	0.023	0.016	0.047	0.023	0.032	0.640	0.016	0.38	0.008	0.5	0.023	16	0.012	0.032	0.025	0.047	0.023
Trimethoprim/sulfamethoxazole		32a	32a	0.064	0.125	0.19	0.19	0.19	0.004	0.004	0.5	0.032	0.047	0.094	0.032	0.032	0.094	0.006	0.75	0.004

Italic underlined: sensitive according to non-species related breakpoints of EUCAST; Bold: resistant according to non-species related breakpoints of EUCAST; Slow growing M. tardum and B. erythrophlei were tested on R2A medium with 2 days incubation time since they did not grow at all on MH medium

^aGrew at the tested maximum concentration of the respective antibiotic; concentrations given in: μg/ml