QS CONTROLLED POST-HARVEST OROCESSES. “Er. carotovora causes the post-harvest soft rotting of many vegetable crops including potato, carrot and green pepper. The virulence of this plant pathogen depends on the synthesis and secretion of a number of exoenzymes including pectinases, cellulases and proteases. Expression of the genes coding for these plant cell wall degrading enzymes is controlled by QS.”
http://mic.sgmjournals.org/content/153/12/3923.full