Figure 1.

SFR2 is not involved in protection against salt or drought stress in Arabidopsis. A and D, Images of plants grown on MS agar plates with (A) different concentrations of NaCl or with (D) different water potentials as indicated. One-week-old, normal, MS-grown seedlings were transferred to salt or drought mimicking plates and grown for 3 weeks before the pictures were taken. B and E, Ion leakage measurements of the salt (B) or drought (E)-treated plant leaves (n = 4, ± sd). C and F, TLC of the lipids from salt-stressed leaves (C) or drought-stressed leaves (D). MgCl₂-treated wild-type samples served as positive controls for SFR2 activation. Lipids were stained for sugar head groups.