Editing Lysogen (section)

{{Short description|Bacteria}}

A '''lysogen''' or '''lysogenic bacteria''' is a bacterial cell that can produce and transfer the ability to produce a [[bacteriophage|phage]].<ref name="Lwoff1953">{{cite journal |last1=Lwoff |first1=André |title=Lysogeny. |journal=Bacteriological Reviews |date=December 1953 |volume=17 |issue=4 |pages=269–337 |doi=10.1128/br.17.4.269-337.1953 |pmid=13105613 |pmc=180777}}</ref> A [[prophage]] is either integrated into the host [[bacteria]]'s [[chromosome]] or more rarely exists as a stable [[plasmid]] within the host cell. The prophage expresses gene(s) that repress the phage's [[lysis|lytic]] action, until this repression is disrupted (see [[lytic cycle]]). Currently a variety of studies are being conducted to see whether other genes are active during lysogeny, examples of which include phage-encoded [[tRNA]] and virulence genes.