Fig. 8

Potato varieties exhibited differential resistance to GMI1000 in the in vitro infection system. a Representative image of inoculated plants taken at 4 dpi. “W/T” represents the number of wilted plants over the total of infected plants. Tested varieties include: Solanum tuberosum L. Désirée; S. tuberosum subsp. andigenum (varieties B and N); S. raphanifolium (varieties M, O, P) and S. pinnatisectum (variety L). b Bacterial content in potato stems measured at 4 dpi. *P < 0.01 (Student’s t test) with respect to Désirée. c ROS production in the infiltrated leaves of potatos measured at 3 dpi. Left: DAB staining; Right: representative image of the plants for DAB staining assay taken at 6 dpi. These experiments were repeated at least twice with similar results