Table 2 The association of compost amendment, endophyte inoculation, and the presence of B. curtipendula with microbial community structure in tailings, compost, and roots of B. curtipendula (PERMANOVA)

TAILINGS*

p = 0.001

p = 0.001

p = 0.003

p = 0.095

p = 0.001

p = 0.001

R² = 0.07410

R² = 0.39263

R² = 0.03569

R² = 0.01501

R² = 0.46620

R² = 0.06405

COMPOST

p = 0.001

–

p = 0.001

p = 0.565

–

p = 0.621

R² = 0.11744

–

R² = 0.09765

R² = 0.03312

–

R² = 0.02535

ROOTS

p = 0.21

–

–

p = 0.416

–

–

R² = 0.21945

–

–

R² = 0.15093

–

–

*Significant interaction of:

(a) prokaryotes

Compost amendment x Endophyte inoculation (R² = 0.07614; p = 0.001), and Compost amendment x Presence of B. curtipendula (R² = 0. 07614; p = 0.001)

(b) fungi

Compost amendment x Presence of B. curtipendula (R² = 0.04570; p = 0.001)