Fig. 3
Relative abundance of bacterial (a) and fungal (b) phyla in compost, roots, and tailings across the treatments: tailings (T), tailings with added compost (TC), tailings with a plant (TP), tailings with a plant and added compost (TPC), tailings with a plant inoculated with endophytes (TPE) and tailings with a plant inoculated with endophytes and added compost (TPEC). Initial materials include initial compost (Cin), seeds without and with endophytes coating (S-e, and S+e, respectively), and initial tailings (Tin). Phyla with relative abundance lower than 0.1% are grouped and labeled as “Other”