Fig. 6

PLC1 and GPA1 positively regulate NO accumulation in guard cells under CAG treatment. a and b Under CAG treatment, 10 μM fluorescent dye DAF-2DA was added in the dark for 15 min to measure the fluorescence intensity of NO in WT, plc1, gpa1, and plc1/gpa1, and the stomatal images were taken. Bar = 2 μm. Uppercase letters indicate differences between groups, lowercase letters indicate differences within groups. Means with different letters are significantly different at P < 0.05