Figure 5.

Effects of mutation of SlHAK10 on the total biomass and K⁺ accumulation in tomato grown under a compartmented culture condition. All the compartments were filled with a 4:1 mixture of sand and low-K⁺ soil (the soil contains 30.2 mg kg⁻¹ available K and 18.5 mg kg⁻¹ available Pi). Wild-type (WT) and mutant plants were grown in the RFC for AM fungal inoculation. Plants were watered weekly with either high-K⁺ (2 mm K⁺) or low-K⁺ (0.2 mm K⁺) solution. The total biomass (A and B) and K⁺ contents in shoots (C and E) and roots (D and F) of the wild-type and mutant plants were determined at 5 weeks postinoculation. AM, Mycorrhizal plants; DW, dry weight; NM, nonmycorrhizal plants. Error bars indicate se (n = 5). The asterisks indicate significant differences (P < 0.05).