Figure 1.

Lack of WRKY46 shows increased sensitivity to Fe deficiency. Growth of 6-week-old wild-type and wrky46 loss-of-function mutant (wrky46-1 and wrky46-2) plants under normal and Fe deficiency treatments for 6 d. The chlorophyll content or leaf greenness in the new leaves was indicated as SPAD values. Three independent experiments were done, each containing at least 10 plants per genotype for one treatment. Data were analyzed by one-way ANOVA following Duncan’s test. Error bars with different letters represent a statistical difference (P < 0.05, Duncan’s test).