, Volume 120, Issue 3, pp 227-229

Isolation of an Escherichia coli strain restricting bacteriophage suppressor

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A bacterial mutant is described which restricts bacteriophage amber suppressor psu +. Restriction, probably, operates at a translational level. The new strain provides the system of identification of bacteriophage amber mutants suppressed by psu + using suppressornegative (su -) bacterial strains.

Communicated by D. Goldfarb