lysogeny

lysogeny
The phenomenon by which a bacterium is infected by a temperate bacteriophage whose DNA is integrated into the bacterial genome and replicates along with the bacterial DNA but remains latent or unexpressed; triggering of the lytic cycle may occur spontaneously or by certain agents and will result in the production of bacteriophage and lysis of the bacterial cell.

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ly·sog·e·ny lī-'säj-ə-nē n, pl -nies the state of being lysogenic

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n.
an interaction between a bacteriophage and its host in which a latent form of the phage (prophage) exists within the bacterial cell, which is not destroyed. Under certain conditions (e.g. irradiation of the bacterium) the phage can develop into an active form, which reproduces itself and eventually destroys the bacterial cell.

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ly·sog·e·ny (li-sojґə-ne) the phenomenon in which a bacterium is infected by a temperate bacteriophage, the viral DNA is integrated in the chromosome of the host cell and replicated along with the host chromosome for many generations (the lysogenic cycle), and then production of virions and lysis of host cells (the lytic cycle) begins again. The lytic cycle is initiated spontaneously about once in 10,000 cell divisions or may be induced by ultraviolet radiation or chemical agents.

Medical dictionary. 2011.

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  • lysogeny — [lī säj′ə nē] n. a dormant viral infection of bacteria in which the genetic material of a virus combines with that of a host bacterium lysogenic [lī΄sō jen′ik] adj …   English World dictionary

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  • lysogeny — noun Date: 1956 the state of being lysogenic …   New Collegiate Dictionary

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  • lysogeny — The ability of some phages to survive in a bacterium as a result of the integration of their DNA into the host chromosome. The integrated DNA is termed a prophage. A regulator gene produces a repressor protein that suppresses the lytic activity… …   Dictionary of molecular biology

  • lysogeny — /luy soj euh nee/, n. Microbiol. the state of being lysogenic. [1955 60; LYSO(GENIC) + GENY] * * * Type of life cycle that takes place in a bacteriophage after it infects certain types of bacteria. The bacteriophage s genome (entire collection of …   Universalium

  • lysogeny — noun The incorporation of the nucleic acid of a bacteriophage into that of a host bacterium; sometimes transmitted to daughter cells following lysis See Also: lysogenic, lytic …   Wiktionary

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