What are the steps of the lytic cycle?
Lytic Cycle :
Simply mean bursting or rupturing cycle , over and over again.
It is one of the cycles of a bacteriophage (virus) in which their is a master-slave relationship between the bacteriophage (master) and bacteria (slave).
Following are the steps of lytic cycle..
In this step, the bacteriophage, attaches itself by it's tail to the
cell wall of bacterium (plural-bacteria).
In this step, the bacteriophage contains an enzyme called
lysozyme, which digest the cell wall of bacterium (plural-
Thus an opening is formed in the bacterial cell wall.
The bacteriophage contracts and injects it's DNA through the
opening, inside the host (bacterium), while the protein coat and
tail remain outside.
4) Taking Control:
Inside bacterial cell, the bacteriophage DNA takes over the
biosynthetic machinery of the host (bacterium), to synthesize it's
own DNA and protein molecule.
The bacteriophage multiplies and increases it's number,hence
form a lot of daughter bacteriophages , the daughter
bacteriophages exert pressure on the cell wall of
Finally, the bacterial cell ruptures ( lysis occurs) due to all that pressure caused by daughter bacteriophages and release the
daughter bacteriophages out, which are now ready to attack a new
bacteria and start their lytic cycle, all over again.
For more information watch this..
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