Oversensitive phenotype of pop2-1 mutant in response to NaCl. (A) Phenotype of 10-day-old plants treated for 6 days with, or without (control), 50, 100 and 150 mM NaCl. Scale bar = 1 cm. (B) Phenotype of 60-day-old plants grown on soil and alimented since their 14-day-old stage with the nutrient solution enriched, or not (control), with 50 mM NaCl. Scale bar = 5 cm.