Figure 4. Bacterial Operational Taxonomic Units (OTUs) associated with wheat root endophytic environments that were most strongly affected by MeJA treatment.

The asterisks indicate significant differences between treatments (*P < 0.05, **P < 0.01, ***P < 0.001, two-tailed student’s t test). Each OTU has a unique numeric identifier shown in square brackets that is consistent with those shown in other figures.