Figure 5.

syp121 and kc1 Mutations Phenocopy the akt1 Mutant in Suppressing NH₄⁺-Sensitive Growth at Submillimolar [K⁺].

Wild-type and mutant Arabidopsis seedlings germinated and grown in modified Murashige and Skoog (MS) with 0.01, 0.1, and 1.0 mM K⁺ with and without 2 mM NH₄⁺ for 10 d. Reference to growth conditions indicated in frame (top right). Bar = 1 cm. Statistical analysis of root length and K⁺ content are summarized in Supplemental Figure 4 online.