Fig. 5

Associations between rhizodeposits and active bacteria. A Correlations between rhizodeposits and active bacteria. B The distribution of betaNTI values of rhizodeposits and active bacteria. C–E The relationships between microbial betaNTI values and TD-based (C), MCD-based (D), and TWCD-based (E) betaNTI values of rhizodeposits. The correlation coefficients were determined by Mantel test. F The number of transformations in P1 and P5. *Represents significant difference between P1 and P5 at P < 0.05. G–H The relationships between number of transformations and chemodiversity of rhizodeposits (G) and biodiversity of active bacteria (H). Lines represent the least squares regression fits, and shaded areas represent the 95% confidence intervals. We applied one-side F and two-side t-tests and then calculated P-values as shown. P1 and P5 represent samples under continuous monoculture cropping of peanut for 1 and 5 years, respectively