Table 3.
Plant growth promotion and plant protection related traits of isolated epiphytic bacteria.
| Plant species | # of total isolates | IAA production | N2 fixation | PO4 solubilization | UV tolerance (h)§ | Drought tolerance (weeks)§ | |
|---|---|---|---|---|---|---|---|
| B. veronicifolia | MR | 10 | 1 | 1 | 3 | 4.2 | 4.2 |
| NC | 7 | 2 | 3 | 2 | 2.3 | 2.4 | |
| A. choisyi | MR | 9 | 2 | 1 | 3 | 3.3 | 2.7 |
| NC | 8 | 1 | 0 | 2 | 2.1 | 3.0 | |
| F. trinervia | MR | 12 | 2 | 3 | 6 | 0.5 | 3.9 |
| NC | 8 | 1 | 3 | 2 | 3.5 | 3.0 | |
| Gnaphalium sp. | MR | 10 | 1 | 1 | 3 | 3.5 | 3.4 |
| NC | 3 | 2 | 0 | 1 | 1.2 | 1.3 | |
MR, mine residues; NC, non-contaminated control sites; # of total isolates, number of characterized isolates; IAA, indole acetic acid; § average of UV light or drought exposition taking into account the number of isolates of each plant species in each condition.