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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 .
Enterobacteria phage P4 (also known as satellite phage P4) is a temperate bacteriophage strain of species Escherichia virus P2 within genus Peduovirus (formerly P2-like viruses, P2virus, and P2likevirus), subfamily Peduovirinae, family Myoviridae. [1] It is a satellite virus, requiring P2-related helper phage to grow lytically.
Adsorption is a value characteristic of phage-host pair and the adsorption of the phage on host cell surface is illustrated as a 2-stage process: reversible and irreversible. It involves the phages tail structure that begins when the phages tail fibers helps bind the phage to the appropriate receptor of its host. This process is reversible.
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.
Bacteriophage P2 is a temperate phage, which means that it can propagate lytically (i.e. directing the host cell to produce phage progenies and finally lysing the host when the phage progenies exit), as well as establish lysogeny (i.e. injecting and fusing its genetic material into the genome of the host without lysing the cell) and maintain as ...
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.
P1 is a temperate bacteriophage that infects Escherichia coli and some other bacteria. When undergoing a lysogenic cycle the phage genome exists as a plasmid in the bacterium [1] unlike other phages (e.g. the lambda phage) that integrate into the host DNA. P1 has an icosahedral head containing the DNA attached to a contractile tail with six ...
It is a temperate double stranded DNA phage as well as a lambdoid phage since it carries control of gene expression regions and early operons similar to those of bacteriophage λ. [3] However, the genes which encode proteins that build the virion are different from those of bacteriophage λ. [ 3 ]