Figure 4.

Microbiota-Mediated Plant Growth Rescue Occurs via the Reductive Import of Iron

(A and B) (A) SFW and (B) leaf chlorophyll content of indicated mutants in the reductive import of iron pathway grown on unavFe media inoculated with heat-killed or live bacterial SynCom. Total chlorophyll content was measured in pooled leaf samples from six plants. Data are from two independent experiments per genotype (n = 36 plants, 6 chlorophyll samples). Each experiment included Col-0 control (n = 90 plants, 18 chlorophyll samples). Asterisks indicate significance between heat-killed- and live SynCom-inoculated groups by Wilcoxon ranked sum test for SFW and Student’s t test for chlorophyll content (^∗, ^∗∗, and ^∗∗∗ indicate p ≤ 0.05, 0.01, and 0.001, respectively). See also Figure S5.