- Temperateness (virology)
virology, temperate refers to the ability of some bacteriophages(notable coliphage λ) to display a lysogenic life cycle. Many (but not all) temperate phages can integrate their genomes into their host bacterium's chromosome, together becoming a lysogenas the phage genome becomes a prophage. A temperate phage is also able to undergo a productive, typically lyticlife cycle, where the prophageis expressed, replicates the phage genome, and produces phage progeny, which then leave the bacterium. With phage the term virulent is often used as an antonym to temperate, but more strictly a virulent phage is one that has lost its ability to display lysogeny through mutation rather than a phage lineage with no genetic potential to ever display lysogeny (which more properly would be described as an obligately lytic phage) [Barksdale, L., and S. B. Ardon. 1974. Persisting bacteriophage infections, lysogeny, and phage conversions. Ann. Rev. Microbiol. 28:265-299.] .
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Temperateness — For the usage in virology, see temperateness (virology). Part of the Nature series on Weather Calendar seasons Spring … Wikipedia