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Table 1 Growth responses of S . cerevisiae , E . coli , S . aureus and P . aeruginosa to I 2 and H 2 O 2 combined at various concentrations in liquid growth media

From: Co-operative inhibitory effects of hydrogen peroxide and iodine against bacterial and yeast species

S. cerevisiae

I2 \H2O2*

0 μM

1 mM

1.5 mM

2 mM

2.5 mM

3 mM

4 mM

0 μM

+++

+++

+++

+++

+++

+++

-

20 μM

+++

+++

+++

+++

+++

+++

-

25 μM

+++

+++

+++

+++

+++

++

-

50 μM

+++

+++

+++

+++

+++

+

-

75 μM

+++

+++

+++

+++

+++

1

-

100 μM

+++

+++

+++

+++

0.95

-

-

150 μM

+++

+++

+++

+++

-

-

-

200 μM

+++

+++

++

1.16

-

-

-

250 μM

+++

+++

++

1.33

-

-

-

300 μM

-

-

-

-

-

-

-

E . coli

I2 \H2O2

0 μM

100 μM

200 μM

400 μM

600 μM

800 μM

1 mM

0 μM

+++

+++

+++

+++

+++

-

-

50 μM

+++

+++

+++

0.58

-

-

-

100 μM

+++

+++

+++

-

-

-

-

200 μM

+++

+++

++

-

-

-

-

300 μM

+++

+++

0.75

-

-

-

-

400 μM

+++

0.79

-

-

-

-

-

500 μM

-

-

-

-

-

-

-

S . aureus

I2 \H2O2

0 μM

75 μM

100 μM

150 μM

200 μM

300 μM

400 μM

0 μM

+++

+++

+++

+++

-

-

-

100 μM

+++

+++

+++

1

-

-

-

150 μM

+++

+++

+++

-

-

-

-

200 μM

+++

++

1

-

-

-

-

250 μM

+++

1

-

-

-

-

-

300 μM

+++

-

-

-

-

-

-

400 μM

-

-

-

-

-

-

-

P . aeruginosa

I2 \H2O2

0 mM

1 mM

1.5 mM

2 mM

2.5 mM

3 mM

4 mM

0 μM

+++

+++

+++

+++

+++

+

-

25 μM

+++

+++

+++

+

0.66

-

-

50 μM

+++

+++

+++

0.58

-

-

-

100 μM

+++

+++

+

-

-

-

-

200 μM

+++

+++

0.71

-

-

-

-

250 μM

+++

++

-

-

-

-

-

300 μM

+++

0.75

-

-

-

-

-

600 μM

-

-

-

-

-

-

-

  1. *Concentrations for H2O2 are shown in horizontal rows; concentrations for I2 are shown in vertical rows. The absence of growth is indicated by the sign “-“. FICs index values are shown as numbers near correspondent “-“ sign. Signs “+++”, “++” and “+” indicate different degrees of growth. The results were recorded after 2 days of cultivation at 30°C (for S. cerevisiae), or after 1–2 days of cultivation at 37°C (for E. coli, S. aureus and P. aeruginosa).