Figure 7.

Three groups of E. coli isolates. E. coli isolates were arranged in three groups according to the CL‐inducing activity (from the lowest to the highest, 1, 2, and 3). The following parameters were compared within/between the groups: extracellular peroxidase activity (Px, μmol·g⁻¹ DW), cell surface hydrophobicity defined by probe fluorescence (F(ANS), a. u., and F(DMC), a.u.), and extracellular catalase activity (catalase, nmol·g⁻¹). Significant difference is indicated: *—in comparison with group 1; #—in comparison with group 2 (P < 0.05, Mann–Whitney test).