Table 2.
List of the thirty-nine strains selected in the second screen based on their PGPR activity. No.: strain number, SL: bulk soil, A: Rumex induratus, B: Rumex bucephalophorus, C: Avena sativa, D: Medicago sativa, E: Vicia bengalensis. BMRSI: Bio-Mercury Remediation Suitability index; “ND” not described strain.
| No. | RF/SL | MBC (µg/mL) |
BMRSI | IAA (µg/mL) |
ACCd (p/a) |
SID. (cm) |
SOL. PO43− |
IDENTIFICATION |
|---|---|---|---|---|---|---|---|---|
| 1 | SL | 50 | 6.68 | 4.63 | - | 1 | - | Bacillus toyonensis |
| 9 | SL | 75 | 6.56 | 5.59 | + | - | - | Bacillus toyonensis |
| 10 | SL | 200 | 7.42 | 6.12 | - | 1.1 | - | ND |
| 11 | SL | 87.5 | 7.69 | 5.61 | - | 1 | - | Bacillus toyonensis |
| 18 | SL | 100 | 7.87 | 6.28 | + | 0.5 | - | Bacillus toyonensis |
| 20 | SL | 100 | 7.55 | 5.96 | + | 0.5 | - | Bacillus toyonensis |
| 21 | SL | 100 | 7.21 | 5.31 | + | 0.8 | - | Bacillus toyonensis |
| 22 | SL | 87.5 | 5.75 | 4.57 | + | 0.1 | - | Bacillus toyonensis |
| 23 | SL | 175 | 6.97 | 4.89 | + | 0.9 | - | Pseudomonas moraviensis |
| 25 | SL | 150 | 7.89 | 5.85 | + | 0.9 | - | Bacillus toyonensis |
| 31 | A | 100 | 7.4 | 5.6 | + | 0.7 | - | Pseudomonas brassicacearum subsp. brassicacearum |
| 37 | A | 87.5 | 7.07 | 5.58 | - | 0.5 | - | Bacillus aryabhattai |
| 43 | A | 87.5 | 7.68 | 5.7 | + | 0.9 | - | Bacillus toyonensis |
| 48 | A | 100 | 6.62 | 4.92 | + | 0.6 | - | ND |
| 50 | A | 100 | 7.08 | 5.29 | + | 0.7 | - | Bacillus toyonensis |
| 55 | A | 87.5 | 7.23 | 5.56 | - | 0.8 | - | Pseudomonas brassicacearum sbups. neoaurantiaca |
| 56 | B | 200 | 6.43 | 4.43 | + | 0.8 | - | Pseudomonas brassicacearum subsp. brassicacearum |
| 57 | B | 175 | 7.26 | 6.38 | + | 0.6 | - | Pseudomonas syringae pv. phaseolicola |
| 58 | B | 100 | 6.46 | 5.56 | + | 0.7 | - | Pseudomonas brassicacearum subsp. brassicacearum |
| 69-I | B | 75 | 7.85 | 6.08 | - | 0.7 | - | Pseudomonas corrugata |
| 69-II | B | 350 | 8.51 | 5.71 | + | 0.7 | + | Pseudomonas corrugata |
| 74 | B | 100 | 8.07 | 6.27 | + | 0.7 | - | Pseudomonas syringae pv. phaseolicola |
| 76 | B | 350 | 7.04 | 4.99 | + | 0.7 | - | Pseudomonas syringae pv. phaseolicola |
| 79 | B | 87.5 | 7.55 | 5.27 | + | 0.4 | - | Pseudomonas syringae pv. phaseolicola |
| 80 | B | 80 | 8.42 | 6.47 | + | 0.8 | - | Pseudomonas syringae pv. phaseolicola |
| 95 | C | 80 | 7.57 | 4.69 | - | 2.8 | - | Brevibacterium frigoritolerans |
| 98 | C | 160 | 7.05 | 5.29 | + | 0.6 | - | Pseudomonas baetica |
| 112 | C | 150 | 5.61 | 4.36 | + | 0.1 | - | Pseudomonas corrugata |
| 122 | D | 87.5 | 6.59 | 4.51 | + | - | + | Brevibacterium frigoritolerans |
| 130 | D | 160 | 8.01 | 5.85 | + | 1 | - | Pseudomonas corrugata |
| 146 | E | 80 | 7.99 | 6.09 | + | 0.8 | - | Pseudomonas fluorescens |
| 151 | E | 87.5 | 5.63 | 4.38 | + | 0.2 | - | Bacillus aryabhattai |
| 168 | A | 87.5 | 6.09 | 4.00 | + | - | + | Bacillus aryabhattai |
| 173 | A | 175 | 6.6 | 5.53 | + | - | - | Bacillus toyonensis |
| 175 | A | 80 | 7.08 | 6.00 | + | - | - | ND |
| 204 | D | 80 | 6.8 | 5.72 | - | - | + | ND |
| 211 | D | 80 | 7.74 | 6.16 | + | 0.5 | - | Bacillus drentensis |
| 212 | D | 80 | 7.73 | 6.16 | + | 0.4 | - | Bacillus drentensis |
| 217 | E | 100 | 5.93 | 4.88 | + | 2 | + | Bacillus nealsonii |