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Anatomy and infection cycle of bacteriophage T4. A bacteriophage (/ bækˈtɪərioʊfeɪdʒ /), also known informally as a phage (/ ˈfeɪdʒ /), is a virus that infects and replicates within bacteria and archaea. The term was derived from "bacteria" and the Greek φαγεῖν (phagein), meaning "to devour".
Phage injecting its genome into bacterial cell An electron micrograph of bacteriophages attached to a bacterial cell. These viruses are the size and shape of coliphage T1. Phage therapy, viral phage therapy, or phagotherapy is the therapeutic use of bacteriophages for the treatment of pathogenic bacterial infections.
Phage typing is based on the specific binding of phages to antigens and receptors on the surface of bacteria and the resulting bacterial lysis or lack thereof. [4] The binding process is known as adsorption. [5] Once a phage adsorbs to the surface of a bacteria, it may undergo either the lytic cycle or the lysogenic cycle. [6]
Prophage. 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.
Escherichia virus Lambda. Bacteriophage Lambda Structural Model at Atomic Resolution [1] Enterobacteria phage λ (lambda phage, coliphage λ, officially Escherichia virus Lambda) is a bacterial virus, or bacteriophage, that infects the bacterial species Escherichia coli (E. coli). It was discovered by Esther Lederberg in 1950. [2]
Enterobacteria phage T4. Escherichia virus T4 is a species of bacteriophages that infect Escherichia coli bacteria. It is a double-stranded DNA virus in the subfamily Tevenvirinae of the family Straboviridae. T4 is capable of undergoing only a lytic life cycle and not the lysogenic life cycle.
Transduction is the process by which foreign DNA is introduced into a cell by a virus or viral vector. [ 1 ] An example is the viral transfer of DNA from one bacterium to another and hence an example of horizontal gene transfer. [ 2 ] Transduction does not require physical contact between the cell donating the DNA and the cell receiving the DNA ...
A bacteriophage, or phage for short, is a virus that has the ability to infect bacteria and archaea, and can replicate inside of them. Phageome is a subcategory of virome, which is all of the viruses that are associated with a host or environment. [4] Phages make up the majority of most viromes and are currently understood as being the most ...