9-Taxonomy_Viruses_Feb26

Html bacteriophage t4 replicaeon virulent phage latent

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Unformatted text preview: naked, but some possess lipid envelopes. •  Viral Life Cycles –  Virulent phages: replicaEon results in host cell lysis (lyEc pathway): T4. –  Temperate phages: the genome becomes incorporated into the bacterial host genome (lysogenic pathway): Lambda. Brock Biology of Microorganisms, 13th EdiEon. Bacteriophages (phages) Bacteriophage T4 •  AdsorpEon: T4 aSaches to the core region of LPS by the tail fibers. Central core Tail sheath •  Following aSachment, the tail sheath contracts, forcing the central core through the outer membrane. Tail lysozymes digest the pepEdoglycan layer, forming a small pore. •  The phage DNA is then injected into the cytoplasm of the host cell. Brock Biology of Microorganisms, 13th EdiEon. hSp://schaechter.asmblog.org/schaechter/2014/02/pictures- considered- 13- how- many- things- can- be- illustrated- in- one- picture.html Bacteriophage T4 replicaEon (virulent phage) Latent period Rise period Brock Biology of Microorganisms, 13th EdiEon. Bacteriophage Lambda replicaEon (temperate...
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