Virulence factors are released in association with outer membrane vesicles of Pseudomonas syringae pv. tomato T1 during normal growth

► Outer membrane vesicles (OMVs) of Pseudomonas syringae pv. tomato T1 were characterized by biochemical analyses and mass spectrometry. ► The observed results demonstrated the structural features and physiological aspects of vesicles. ► The presence of virulence factors associated with vesicles predicted the possible involvement of OMVs in pathogenesis.