The pilus is connected to a channel-like translocon that is inserted into the plant plasma membrane.
The type III secretion system transports approximately 30 different bacterial effector proteins into the plant cell.
Bacterial effector proteins are transported to different cellular compartments and manipulate host cellular pathways. Some effector proteins reach the plant cell nucleus and modify plant gene expression.
Effector proteins suppress plant defense responses and promote bacterial multiplication at the infection site.
Video by Bernd Montag, Duc Phan Tran, Felix Herbst, Frank Montag.