Fig. 1.
The PCR product of reference Azotobacter strain and Azotobacter isolates as follows Lanes 2 and 8, line 1 = 100 bp marker, line 2 = Reference strain Azotobacter sp. PTCC 1658, Lane 3 to 8 = Respectively; A2, A3, A5, A8, A15, A21 isolates.
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