FIGURE 1.

Distribution of secretion systems in the genome of Paraburkholderia phytofirmans PsJN. T3SS and T4SS clusters are located in chromosome 2 (position 1396242–1383596 and 2785143–2797095, respectively). T6SS is represented by two clusters located on chromosomes 1 and 2 (position 1046459–1070567 and 1046459–1058642, respectively). Secretion systems in PsJN might inject effector proteins which cross the cell wall and might act on host plant to modulate plant signal transduction and elicit host defense responses.