Table 9.

Evaluation of IC50 (μg mL⁻¹) and MIC (μg mL⁻¹) of different heavy metals toward Nocardiopsis sp. MORSY1948 and Nocardia sp. MORSY2014 during fermentation course.

Metal	Fermentation media
Starch casein medium						St 1 medium						Tryptic soy broth medium						Kuster's medium
MORSY1948			MORSY2014			MORSY1948			MORSY2014			MORSY1948			MORSY2014			MORSY-1948			MORSY-2014
IC50	MIC	R	IC50	MIC	R	IC50	MIC	R	IC50	MIC	R	IC50	MIC	R	IC50	MIC	R	IC50	MIC	R	IC50	MIC	R
Ni2+	>1000	>1000	+	>1000	>1000	+	>1000	>1000	+	>1000	>1000	+	500	900	+	>1000	>1000	+	600	>1000	+	>1000	>1000	+
Cr6+	>1000	>1000	+	>1000	>1000	+	>1000	>1000	+	>1000	>1000	+	400	1000	+	>1000	>1000	+	325	800	+	>1000	>1000	+
Zn2+	>1000	>1000	+	>1000	>1000	+	>1000	>1000	+	>1000	>1000	+	400	1000	+	>1000	>1000	+	375	900	+	>1000	>1000	+
Fe2+	300	500	+	>1000	>1000	+	300	500	+	>1000	>1000	+	250	750	+	>1000	>1000	+	350	750	+	>1000	>1000	+
Cu2+	>1000	>1000	+	>1000	>1000	+	>1000	>1000	+	>1000	>1000	+	250	600	+	>1000	>1000	+	350	900	+	>1000	>1000	+
Cd2+	350	600	+	>1000	>1000	+	300	700	+	>1000	>1000	+	200	500	+	>1000	>1000	+	200	600	+	>1000	>1000	+
Pb2+	250	500	+	300	500	+	200	550	+	400	650	+	375	850	+	300	700	+	250	600	+	300	700	+
Co2+	>1000	>1000	+	400	600	+	>1000	>1000	+	350	600	+	>1000	>1000	+	350	600	+	>1000	>1000	+	400	700	+
Hg2+	75	100	+	150	300	+	100	150	+	100	300	+	100	150	+	100	400	+	100	250	+	250	500	+
Mn2+	>1000	>1000	+	700	1000	+	250	>1000	+	600	>1000	+	300	>1000	+	400	>1000	+	250	>1000	+	400	>1000	+
Ar2+	250	500	+	>1000	>1000	+	250	400	+	>1000	>1000	+	450	800	+	>1000	>1000	+	375	700	+	>1000	>1000	+