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Effect of salt on the adsorption of λimm434 bacteriophage to MG1655::λimm434 lysogens. Phage (λimm434 at 5 × 104 PFU/ml) were incubated at 37°C for 20 min with 1 × 109 CFU of stationary-phase MG1655::λimm434 lysogens in LB without or with 200 mM NaCl. Subsequent to removal of the cells by centrifugation, the amount of phage remaining in the supernatant was determined as described in Materials and Methods. The error bars indicate standard deviations.
