Fig. 3.

Zones of stunted growth of S. aureus 124 (1) and P. aeruginosa 18 (2) with applying of copper sulfate to paper disks in different doses after cultivation for 24 h at a temperature of 37 °C (A) and with applying of copper sulfate to agar wells in doses: 7, 15 and 20 g/l– for S. aureus 124 (1) and P. aeruginosa 18 (2) (B). The means and their standard errors from three independent experiments are presented. ∗ - the difference between variants S. aureus 124 and P. aeruginosa 18 is significant at P < 0.05.