temperate phage


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temperate phage

[tem′pərit]
Etymology: L, temperare, to moderate; Gk, phagein, to eat
a bacteriophage whose genome is incorporated into the host bacterium. It persists through many cell divisions of the bacterium without destroying the host, in contrast to a virulent phage, which lyses and kills its host.

temperate phage

a BACTERIOPHAGE which may become a PROPHAGE by integrating with the host DNA or being extrachromosomal, and establishing LYSOGENY. The phage may also be capable of intracellular development within the host, and of causing LYSIS in the LYTIC CYCLE. An example is bacteriophage lambda. Compare VIRULENT PHAGE.