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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.
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.
Bacteriophages , potentially the most numerous "organisms" on Earth, are the viruses of bacteria (more generally, of prokaryotes [1]). Phage ecology is the study of the interaction of bacteriophages with their environments. [2]
Bacteriophages (Greek for 'bacteria eater'), or simply phages, are viruses which infect bacteria. [15] The idea of using phages against unwanted bacteria developed shortly after their discovery. With the improvements in organic chemistry during the 1950s, exploration and development of broad spectrum antibiotics displaced interest in ...
Most of these viruses are bacteriophages which infect and destroy marine bacteria and control the growth of phytoplankton at the base of the marine food web. Bacteriophages are harmless to plants and animals but are essential to the regulation of marine ecosystems. They supply key mechanisms for recycling ocean carbon and nutrients.
Bacteriophages, also known as phages, infect and kill bacteria primarily during lytic cycles. [201] [200] Phages insert their DNA into the bacterium, where it is transcribed and used to make new phages, after which the cell will lyse, releasing new phage that are able to infect and destroy further bacteria of the same strain. [200] The high ...
Contaminated food or liquids can also spread the virus. Shellfish, especially oysters and clams, are also known to spread the bug, because they are filter feeders and can accumulate the virus from ...
During the lysogenic cycle, the virus genome is incorporated as prophage and a repressor prevents viral replication. Nonetheless, a temperate phage can escape repression to replicate, produce viral particles, and lyse the bacteria. [13] The temperate phage escaping repression would be a disadvantage for the bacteria.