A lysogen or lysogenic bacterium is a bacterial cell in which a phage exists as DNA in its dormant state (prophage). 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 lytic action, until this repression is dis.....
A bacterial cell whose chromosome contains in- tegrated viral DNA
<microbiology> A bacterial cell whose chromosome contains integrated viral DNA. ... (15 Oct 1997) ... 
(li´so-jәn) an antigen causing the formation of lysin; called also lysinogen. an agent that causes lysis.
Type: Term Pronunciation: lī′sō-jen Definitions: 1. That which is capable of inducing lysis. 2. A bacterium in the state of lysogeny. 3. Any antigen that stimulates lysin production.
bacterium carrying the prophage
a bacterial cell or strain that has been infected with a temperate virus, one that does not cause destruction of the cell.