Figure 5.

Cell specificity of McHAK expression in common ice plant. A through G, In situ hybridization of McHAK4 to tissue cross sections from common ice plant adapted to nutrition solution without K⁺ added. A, Leaf, control; antisense. B, Leaf, 72 h 400 mm NaCl, antisense. C, Root tip, control; antisense. D, Root tip, 72 h, 400 mm NaCl; antisense. E, Root, 72 h, 400 mm NaCl; antisense. F, Leaf, control; sense. G, Root, 72 h, 400 mm NaCl; sense. H and J, In situ hybridization of McHAK1 and McHAK3 to tissue cross sections from common ice plant adapted to nutrition solution with 3 mm K⁺ added. H, Root tip, 12 h, 400 mm NaCl; McHAK1, antisense. I, Root tip, 12 h, 400 mm NaCl; McHAK3, antisense. J, Root tip, 12 h, 400 mm NaCl; McHAK3, sense. mp, Mesophyll; ph, phloem; xy, xylem; eb, epidermal bladder cell; ct, cortex; vb, vascular bundle.