Table 2.
PGP properties and enzymatic activities shown by tested strains.
| PGP Properties | Without Metal | With Metal | ||||
|---|---|---|---|---|---|---|
| MA11 | Vg | Vp | MA11 | Vg | Vp | |
| Phosphate solubilizing | 1.70 | - | - | 1.10 | 1.20 | 1.00 |
| Siderophores production | 1.41 | 5.00 | 4.00 | n. d | n. d | n. d |
| IAA production | 1.76 | 4.26 | 2.11 | 1.07 | 2.28 | 1.51 |
| Biofilm formation | 0.14 | - | 0.56 | 0.27 | 0.10 | 0.18 |
| ACC deaminase activity | 1.03 | 2.66 | 2.11 | 9.08 | 10.03 | 8.55 |
| Enzymatic activities | ||||||
| DNAse | - | + | - | - | - | - |
| Amylase | + | + | + | + | - | - |
| Cellulase | - | - | - | - | - | - |
| Lipase | - | + | - | - | - | - |
| Pectinas | - | + | - | - | - | - |
| Protease | - | + | - | - | + | - |
| Chitinase | - | - | - | - | - | - |
MA11, E. medicae MA11; Vg, V. gossypii JM-310T; Vp, V. paradoxus S110T; +, presence of the activity; -, absence of the property/activity; n. d., non-determinated. Values of phosphate solubilization and siderophores production express the diameter of the halo in cm. Values of IAA production are expressed in mg·L−1. Values of ACC deaminase activity are expressed in μmoles α-ketobutyrate·mg protein−1·h−1.