Infection process of agrobacterium on plant cell.

1. Phenolics
Produced by
Wounded
Plant cell
PLANT CELL
AGROBACTERIUM
VirA VirG
Phenolics
detected by the
VirA/VirG two
component
sensor system.
Vir Gene
expression
induced
T-DNA
Vir D1 & D2 cut
T-DNA at right
and left borders.
VirD2 attaches to
exposed 5I
end
VIP1 associates with
the complex to target
it to the nucleus
VIP2 associates the
complex to
transcriptionally
active DNAT-DNA integrates into plant DNA
and gall production is initiated.
Gall Formation!
Formation of T-
complex
Bacterial
Plasmid
Formation of T-Pilus