Table 1 Plant growth promoting traits and molecular identification of the selected strains in the consortium
Tested trait | Pseudomonas sp. P8 | Peribacillus sp. P10 | Streptomyces sp. X52 | |
|---|---|---|---|---|
Morphological traits | Round, yellow, opaque | Smooth, bulging, slimy, white | Dry, yellow, embed in the culture medium | |
Phosphate solubilization | 3a | 5 | 0 | |
Nitrogen fixation | 5 | 5 | 0 | |
IAA production (μg mL−1) | 1 (21.87)b | 1 (11.25) | 5 (70.58) | |
ACCD activity (mM mg−1 h−1) | 5 (8.01) | 3 (7.27) | 3 (4.58) | |
Siderophore production | 2 | 2 | 3 | |
Growth at | 5% (w/v) NaCl | + | + | + |
10% (w/v) NaCl | + | + | + | |
Growth Inhibition (IR%) to | Pythium sp. | 41.24 | 35.74 | 68.04 |
Fusarium sp. | 23.00 | 69.50 | 43.00 | |
Curvularia lunata | 56.60 | 54.51 | 78.13 | |
Bipolaria maydis | 51.06 | 60.49 | 82.98 | |
Phytophthora sp. | 54.69 | 47.92 | 62.24 | |
Most related species | Pseudomonas silesiensis | Peribacillus simplex | Streptomyces microflavus | |
Reference strain | A3 | NBRC 15720 | 126182 | |
Accession no. of 16S rDNA | NR156815 | NR115603 | JN180196 | |
Identity of 16S rRNA gene | 99.73% | 99.87% | 99.85% | |