Figure 1

The luh-4, slk1-1 and slk2-1 mutants show tolerance to salt and osmotic stress. (A) The single mutants and control plants were grown on the MS medium for six days. The plants were transferred to MS medium as a control and MS medium supplemented with 125 mM NaCl and 300 mM mannitol for salt and osmotic stress treatment respectively. The plants were grown in growth chamber and photographed after 10 days for control, 15 days for salt and 25 days for osmotic treatment plates. (B) Root length of plants grown on the MS medium with 125 mM NaCl for 15 days. (C) Fresh weight of plants grown on the MS medium with 125 mM NaCl for 15 days. (D)  Root length of plants grown on the MS medium with 300 mM mannitol for 25 days. (E) Fresh weight of plants grown on the MS medium with 300 mM mannitol for 25 days. The root length and fresh weight for salt and osmotic stress is presented as a percentage relative to plants grown on MS medium without stress treatment. Error bars are SE with 20 – 25 plants per replicate (n = 4). Asterisks indicate values that are significantly different from the wild type plants (*P <0.05, Student’s t test).