Table 2.

Growth phases of microorganisms before and after the introduction of MNC of heavy metal salts, hours.

	B. subtilis 7048			B. licheniformis 7038			B. clausii
	lag	exp	stat	lag	exp	stat	lag	exp	stat
Control	3	24	27	3	24	27	3	24	27
Pb	3	27	30	3	24	27	3	27	30
Cd	3	30	33	3	30	33	3	33	36
Co	3	30	33	3	30	33	3	27	30
Zn	3	30	33	3	27	30	3	30	33

Note: “exp” indicates the duration of the growth phase, and “stat” indicates the beginning of the stationary growth phase. For “lag,” the specified value is ≤ 3.

Abbreviations: exp, exponential phase; lag, lag phase; stat, stationary phase.