FIGURE 1 Comparisons in microbial richness and composition between rhizosphere (Rs) and non-rhizosphere (Non-Rs) regions . Notes: Bacterial (a) and fungal (b) richness; Difference in bacterial (c) and fungal (d) community composition; Relative abundance of main bacterial (e) and fungal(f) taxa. The taxa with a relative abundance < 1% were assigned into “Others”. *, **, and *** indicated significant difference between two regions by t-test at p = 0.05, 0.01, and 0.001, respectively.