Fig. 3.
SPP1delX110lacO64 binding to B. subtilis cells at a high multiplicity of infection. Qdot-labeled phages (100 virions per bacterium) were incubated with B. subtilis YB886 (upper row) or with the YueB-overproducing strain YB886.PspacYB (bottom row) for 2 min, followed by fixation and dilution as described in Materials and Methods.