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Table 3 Screening of actinobacterial strains for metal resistant properties

From: Bioleaching of heavy metals from printed circuit board (PCB) by Streptomyces albidoflavus TN10 isolated from insect nest

S. no

Strain no

Concentration of ferrous sulfate FeSO4 (ppm)

Concentration of copper sulfate CuSO4 (ppm)

Concentration of nickel chloride NiCL3 (ppm)

100

500

1000

1500

100

500

1000

1500

100

500

1000

1500

1

TN 10

+++

+++

+++

+++

+++

+++

+++

+++

+++

+++

+++

+

2

TN 5

+++

+++

+

−

+++

+++

+++

−

+++

+

+

−

3

TN 2

+++

+++

+

−

+++

+++

+

−

+++

++

+

−

4

TN 14

+++

+++

+++

−

+++

+++

+

−

+++

++

+

−

5

TN 8

+++

+

+

−

+++

+++

+++

−

+++

+++

++

+

  1. +++, excellent growth; ++, good growth; +, moderate growth; −, no growth