Fig. 1
From: Selection and evolution of mating products after spontaneous zygogenesis in Escherichia coli K-12
Ability of induced 84SV lysates to promote Z mating. Bacteria of F-strains KmRIL1 and GmRIL4 exposed to an induced 84SV lysate conferring the Z-mating factor were mixed in M9-LB (time 0). After a 30-min incubation in LB, the culture was diluted twice with LB and distributed in several tubes (arrow). A cocktail of KG was added at different times except to the control tube. The same was done with a culture of non-infected bacteria. The graph shows the values of the survival rate (S rate) to a 3-h exposure to KG, according to the time before treatment, in the set of infected (□) compared to not infected (●) mixtures