Table 1 Morphological, physiological and cultural characteristic of PGPR and PSM bacterial strains isolated from wheat
Sr. no. | Strain | Gram stain | Shape of bacteria | Colony color on N.A. | Colony size/shape on N.A. | Tentative identification by QTS-24 kit |
|---|---|---|---|---|---|---|
Plant growth-promoting rhizobacteria (PGPR) | ||||||
1. | WPR-32 | −ve | Medium sized rod | Off-white | Regular size with crenate boarders | Azotobacter spp. |
2. | WPR-42 | −ve | Curved rod (pleomorphic) | White (semi-transparent) | Irregular size with rough surface | Azospirillum spp. |
3. | WPR-51 | −ve | J shaped rod | Off-white | Irregular size with empty centered | Azospirillum spp. |
4. | WPR-61 | −ve | Short rods | Off-white | Regular size/circular | Azotobacter spp. |
5. | WM-1 | −ve | Slightly curved rods | Light pink | Irregular size with wrinkled surface | Enterobacter spp. |
6. | WM-2 | −ve | Slightly curved rods | Off-white | Irregular size with entire edges | Azospirillum spp. |
7. | WM-3 | −ve | Cocci-bacilli | White | Regular size with rough surface | Pseudomonas spp. |
Phosphate-solubilizing microorganisms (PSM) | ||||||
1. | PSM-202 | +ve | Long rods | White/transparent | Regular size/circular with shiny surface | Bacillus spp. |
2. | PSM-305 | −ve | Cocci-bacilli | White | Regular size with rough surface | Pseudomonas spp. |