Isolation, Characterization, and Investigation on Potential Multi-trait Plant Growth Promoting Rhizobacteria from Wild Banana (Musa itinerans) Rhizospheric Soil

The undertaken study was conducted to isolate and characterize the plant growth promoting rhizobacteria from rhizospheric soil of Musa itinerans collected Zaphumi village, Nagaland, Northeast India. purified bacterial isolates were screened for growth-promoting traits namely phosphate solubilization, IAA production, siderophore ammonia production. Out 25 isolates, three best with maximum selected considered further heavy metal salinity tolerance. All able produce siderophore, whereas, only EZ30 IAA. Phosphate solubilization ability highest in EZ27 (272.89±2.46), followed by (109.70±5.47) EZ11(89.12±1.87). also exhibited variable levels cadmium (30- 280µg/ml) resistance (2-14%). Based on 16S-rRNA gene sequence analysis, these identified as Kosakonia arachidis, Pseudomonas putida monteilii. tolerance shown P. (14%), whereas K. arachidis (4%) monteilii similar level (280 µg/ml), (80 µg/ml) (30 µg/ml). Inoculation Cicer arietinum L. significantly enhanced parameter such shoot root length (p≤ 0.05), fresh weight dry except EZ11 where there no significant difference (p≥ 0.05). Overall, PGPR strains showed potential biofertilizer (phosphate solubilizing, producing, salinity, tolerant) be used agricultural fields sustainable practices.