Figure 7.

Functions of GLIP1 and ethylene components in resistance to Pst DC3000. A, Phenotypes of leaves inoculated with 10 µL of 10 mm MgCl₂ (mock) or aliquots of Pst DC3000 (10⁶ colony-forming units [cfu] mL⁻¹). B, Bacterial growth in leaves inoculated with 10-µL aliquots of Pst DC3000 (10⁵ cfu mL⁻¹). The values are means ± sd (n = 5). Asterisks indicate significant differences from Col-0 (Student’s t test, *P < 0.05). The experiment was repeated five times with similar results. C, Effect of petiole exudates on bacterial growth. Plant leaves were pretreated with petiole exudates (EX) from Col-0, glip1-1, 35S:GLIP1, and 35S:GLIP1 plants for 24 h and then infiltrated with 10-μL aliquots of Pst DC3000 (10⁵ cfu mL⁻¹). The values are means ± sd (n = 5). Asterisks indicate significant differences from the mock treatments (Student’s t test, *P < 0.05). The experiment was repeated three times with similar results.