Infection process of agrobacterium
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Agrobacterium detects wounded plant cell phenolics using its VirA/VirG two component sensor system, which induces expression of virulence genes. This allows VirD1 and VirD2 to cut T-DNA from the bacterial plasmid at the right and left borders. VirD2 then attaches to the exposed 5' end of T-DNA, and associates with VIP1 and VIP2 to target the complex to the plant cell nucleus. There, the T-DNA integrates into the plant genome and initiates gall formation.
Infection process of agrobacterium
- 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