Table 4.

Antibiotic susceptibility and heavy metal tolerance of rhizobia isolates. (Spect: spectynomycin; Gent: gentamicin; Kan: kanamycin; CHL: chloramphenicol; Strep: streptomycin; Rif: rifampicin; Ery; erythromycin).

Origin	Strains	MIC (µg/mL)
		Spec	Gent	Kan	CHL	Strep	Rif	Ery	SbO3	ZnCl2	CuCl2	HgCl2	Pb(CH3COO)2
Reference strains	Hs1	>5000	300	20	100	500	200	>5000	>6000	2750	1500	250	2250
	Hp7	>5000	300	300	100	600	50	>5000	>6000	2500	1500	250	2250
	Hca1	>5000	400	20	100	400	100	>5000	>6000	2250	1500	250	2250
	A6	>5000	1250	600	500	1250	200	>5000	>6000	2750	1500	500	2250
	HnA	>5000	100	20	300	400	50	>5000	>6000	2750	1500	750	2250
Argyrolobium Uniflorum	N1	>5000	800	300	400	600	150	>5000	>10000	2100	1600	750	1700
	N2	>5000	800	300	400	600	50	>5000	>10000	1600	1550	600	1700
	YN12	>5000	1000	300	400	600	150	>5000	>10000	1600	1500	500	1700
	AN123′	>5000	1000	600	400	600	150	>5000	>10000	1800	1550	800	1700
	AN11′	>5000	1200	600	400	600	50	>5000	>10000	2100	1600	800	1700
	AB2′	>5000	1250	300	400	600	150	>5000	>10000	2100	1200	600	1700
	B3	>5000	800	600	400	1000	50	>5000	>10000	1800	1600	300	1700
Genista microcephala	D	>5000	1250	600	400	600	200	>5000	>10000	1800	1500	800	1700
	E	>5000	800	600	400	1000	200	>5000	>10000	1600	1050	300	1700
	K	>5000	700	300	400	600	200	>5000	>10000	1600	1500	500	1700
	F	>5000	300	300	300	600	150	>5000	>10000	1600	1500	800	1700
	A	>5000	1200	600	400	600	150	>5000	>10000	1800	1500	1000	1700
	M	>5000	800	600	400	600	150	>5000	>10000	2100	1000	500	1700