Figure 6.

The combination of U73122 and CPA increases intracellular calcium level in Arabidopsis seedlings upon salt stress. Representative calcium responses obtained during one experiment (n = 3) after challenging salt-treated (200 mm) Arabidopsis plants either with 1% DMSO, 25 μm CPA, 50 μm U73122, or with a combination of U73122 and CPA are shown. The vertical line at t = 30 s indicates the moment where NaCl was added to the seedlings. Each trace represents an averaged response obtained from the simultaneous measurement of light emitted by five plants.