Figure 3.

Phylogenetic tree of all Actinobacteria genera identified as indicators of drought treatment in any sample type. The inner ring indicates the five orders these genera belong to; the second, third and fourth innermost rings indicate the degree of log₁₀ fold enrichment in the soil, rhizosphere and root, respectively (legend at bottom). Darker shades of color indicate greater enrichment, whereas white indicates no significant enrichment. The outer ring indicates the log₁₀ abundance of each genus in all samples.