Figure 2.

lks2 and nrt1.5 Are Defective in the Root-to-Shoot Transport of K⁺ and NO₃⁻.

(A) to (D) K⁺ ([A] and [B]) and NO₃⁻ ([C] and [D]) content measurement in various plant materials after being transferred to MS or LK medium for 7 d.

(E) and (F) The root/shoot ratios of K⁺ (E) and NO₃⁻ (F) in various plant materials.

(G) and (H) K⁺ (G) and NO₃⁻ (H) concentrations in xylem exudates from mutant and complemented plants after being cultured in solutions containing different K⁺ concentrations (5 and 0.1 mM) for 20 d.

Data in (A) to (F) are mean ± se (n = 3). Data in (G) and (H) are mean ± se (n = 4). Student’s t test (*P < 0.05 and **P<0.01) was used to analyze statistical significance.