Transduction in bacteria

1. Transduction in Bacteria

2. Index
 Introduction
 Discovery
 Types of transduction
 Generalized transduction
 Specialized transduction
 Lytic cycle & Lysogenic cycle
 Reference

3. Introduction

4. Discovery

5. Types of transduction
 There are two different type of transduction in bacteria -
 Generalized transduction
 Specialized transduction

6. Generalized transduction
 Generalized transduction occurs during the lytic cycle of
virulent and some temperate phages and can transfer
any part of the bacterial genome . During the assembly
stage,when the viral chromosomes are packaged into
protein capsids,random fragments of the partially
degraded bacterial chromosome also may be packaged
by mistake.

7. Specialized transduction
 In specialized transduction, the transducing
particle carries only specific portions of the
bacterial genome. Specialized transduction is
made possible by an error in the lysogenic life
cycle of phages that insert their genomes into a
specific site in the host chromosome. When a
prophage is induced to leave the host
chromosome,excision is sometimes carried out
improperly.

8. Lytic cycle & Lysogenic cycle

9. Reference
 Microbiology: An Introduction, Tortora G., Berdell R.F. And Case C.L., 1997. 6th ed.
Addison Wesley.
 . Microbiology. Prescott L.M., Harley J.P. And Klein D.A. 2002 7th ed. McGraw Hill;
New York.

11. Reference