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Bacteriophage P1

Gunilla B Krook gkrook at cc.Helsinki.FI
Tue Sep 24 11:53:22 EST 1996

Wai (Denny) Lee (leew at rohan.sdsu.edu) wrote:
: I am trying understand a microbiology paper with very little biology
: background.  Can anyone explain the following terms to me?
: Bacteriophage P1, P1 lytic growth and lysogenic P1.  Thanks.

BActeriophage P1 is just the name. You need to understand the life cycle
of the phages which have lysogenic and lytic cycles. P1 infect the
host(E.coli), and replicate its DNA and produce the proteins for its
morphogenesis immediately, and release the progenies, this is the lytic
cycle. if P1 does not propagate its slef after infection, instead
integrate into chromosome, and become part of chromosome DNA, and keep
rfeplication with chromosome together, this is the lysogenic cycle, it
is possible the lysogenic DNA enter lytic cycle by some induction, such
as, if there is temperature senstive mutation, increasing Tm will lead
to release the phage.  Hope this helps!  more information:
cheng.luo at plantphys.umu.se

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