TABLE 1.
Plant growth promoting bacteria (PGPB) characteristics of the tested strains.
| No. | Identification 16S | Isolation origin | BMRSI (Robas et al., 2021) | MBC (μg/mL) | IAA (μg/mL) | ACCd (p/a) | Sid (cm) | PO43– solubility (p/a) |
| 11 | Bacillus toyonensis | SL | 7.69 | 87.5 | 5.61 ± 0.26 | + | 1.0 | – |
| 18 | Bacillus toyonensis | SL | 7.87 | 100 | 6.08 ± 0.02 | + | 0.5 | – |
| 20 | Bacillus toyonensis | SL | 7.55 | 100 | 5.96 ± 0.12 | + | 0.5 | – |
| 21 | Bacillus toyonensis | SL | 7.21 | 100 | 5.31 ± 0.36 | + | 0.8 | – |
| 22 | Bacillus toyonensis | SL | 5.75 | 87.5 | 4.57 ± 0.08 | + | 0.1 | – |
| 23 | Pseudomonas moraviensis | SL | 6.97 | 175 | 4.89 ± 0.03 | + | 0.9 | – |
| 25 | Bacillus toyonensis | SL | 7.89 | 150 | 5.85 ± 0.11 | + | 0.9 | – |
| 31 | Pseudomonas corrugata | A | 7.40 | 100 | 5.60 ± 0.20 | + | 0.7 | – |
| 43 | Bacillus toyonensis | A | 7.68 | 87.5 | 5.70 ± 0.19 | + | 0.9 | – |
| 48 | Nd | A | 6.62 | 100 | 4.92 ± 0.24 | + | 0.6 | – |
| 50 | Bacillus toyonensis | A | 7.08 | 100 | 5.29 ± 0.31 | + | 0.7 | – |
| 57 | Pseudomonas syringae | B | 7.26 | 175 | 6.38 ± 0.30 | + | 0.6 | – |
| 69I | Pseudomonas corrugata | B | 7.85 | 75 | 6.08 ± 0.08 | – | 0.7 | – |
| 69II | Pseudomonas corrugata | B | 8.51 | 350 | 5.71 ± 0.13 | + | 0.7 | + |
| 74 | Pseudomonas syringae | B | 8.07 | 100 | 6.27 ± 0.17 | + | 0.7 | – |
| 76 | Pseudomonas syringae | B | 7.04 | 350 | 4.99 ± 0.05 | + | 0.7 | – |
| 79 | Pseudomonas syringae | B | 7.55 | 87.5 | 5.27 ± 0.31 | + | 0.4 | – |
| 80 | Pseudomonas syringae | B | 8.42 | 80 | 6.47 ± 0.06 | + | 0.8 | – |
| 112 | Pseudomonas corrugata | C | 5.61 | 150 | 4.36 ± 0.09 | + | 0.1 | – |
| 130 | Pseudomonas corrugata | D | 8.01 | 160 | 5.85 ± 0.12 | + | 1.0 | – |
| 146 | Pseudomonas fluorescens | E | 7.99 | 80 | 6.09 ± 0.11 | + | 0.8 | – |
| 168 | Bacillus aryabhattai | A | 6.09 | 87.5 | 6.00 ± 0.08 | + | 0.0 | + |
| 197 | Pseudomonas sp. | C | 5.05 | 80 | 4.97 ± 0.13 | – | 0.0 | – |
| 211 | Bacillus drentensis | D | 7.74 | 80 | 6.16 ± 0.02 | + | 0.0 | – |
No, strain number; SL, bulk soil, (A–E) rhizospheres of (A) Rumex induratus, (B) Rumex bucephalophorus, (C) Avena sativa, (D) Medicago sativa, and (E) Vicia benghalensis. BMRSI, biomercury remediation suitability index; MBC, minimum bactericidal concentration; IAA, indole-3-acetic acid production; ACCd, ACC deaminase production; SID, siderophore production; Solub PO43–, phosphate solubilization; +, positive result; –, negative result; Nd, strain not determined.