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In virology, temperate refers to the ability of some bacteriophages (notably 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 lysogen as the phage genome becomes a prophage .
Structural model at atomic resolution of bacteriophage T4 [1] The structure of a typical myovirus bacteriophage Anatomy and infection cycle of bacteriophage T4.. A bacteriophage (/ b æ k ˈ t ɪər i oʊ f eɪ dʒ /), also known informally as a phage (/ ˈ f eɪ dʒ /), is a virus that infects and replicates within bacteria and archaea.
Podoviridae was a family of bacteriophage in the order Caudovirales often associated with T-7 like phages. [1] The family and order Caudovirales have now been abolished, with the term podovirus now used to refer to the morphology of viruses in this former family. [2]
Another way of envisioning phage "organismal" ecology is that it is the study of phage adaptations that contribute to phage survival and transmission to new hosts or environments. Phage "organismal" ecology is the most closely aligned of phage ecology disciplines with the classical molecular and molecular genetic analyses of bacteriophage.
A prophage is a bacteriophage (often shortened to "phage") genome that is integrated into the circular bacterial chromosome or exists as an extrachromosomal plasmid within the bacterial cell. [1] Integration of prophages into the bacterial host is the characteristic step of the lysogenic cycle of temperate phages.
Bacteriophage P2 was first isolated by G. Bertani from the Lisbonne and Carrère strain of E. coli in 1951. [3] Since that time, a large number of P2-like prophages (e.g. 186, HP1, HK239, and WΦ) have been isolated that shared characters such as host range, serological relatedness and inability to recombine with phage λ, and they seemed to be quite common in E. coli populations as about 30% ...
[1] [2] Phageome is a subcategory of virome, which is all of the viruses that are associated with a host or environment. [3] The term was first used in an article by Modi et al. in 2013 [ 4 ] and has continued to be used in scientific articles that relate to bacteriophages and their metagenomes.
A lysogen or lysogenic bacteria is a bacterial cell that can produce and transfer the ability to produce a phage. [1] A prophage is either integrated into the host bacteria's chromosome or more rarely exists as a stable plasmid within the host cell.