Figure 1. Susceptibility of various enterobacteria to antimicrobial substances produced by X. sp. TZ01.

A: Growth curves in liquid broth of Y. pseudotuberculosis 4N1 (closed circles), Y. pseudotuberculosis 4N1 supplemented with 8% of X. sp. TZ01 culture supernatant (closed triangles), Y. pseudotuberculosis IP2777 supplemented with 8% of X. sp. TZ01 culture supernatant (closed diamonds), Serratia marcescens EE016 supplemented with 8% of X. sp. TZ01 culture supernatant (closed upside down triangles), E. coli VT01 supplemented with 8% X. sp. TZ01 culture supernatant (open circles) and S. Enteritidis SE01 supplemented with 8% of X. sp. TZ01 culture supernatant (opened squares). OD₆₀₀ values were plotted every 30 minutes during 6 hours. B: Growth rates of Y. pseudotuberculosis 4N1 (4N1), Y. pseudotuberculosis IP2777 (2777), Vero-toxigenic E. coli VT01 (VTEC), Salmonella Enteritidis SE01 (SEnt) and Serratia marcescens EE016 (Ser) in liquid broth supplemented with either 0% (white bars), 4% (hatched bars) or 8% (dotted bars) of X. sp. TZ01 culture supernatant. Growth rates were calculated by plotting experimental OD₆₀₀ values in log2 scale and taking the slope of the adjusted linear regression curve. Few or no growth was observed for Vero-toxigenic E. coli VT01 and Salmonella Enteritidis SE01 grown with either 4% or 8% of X. sp. TZ01 culture supernatant.