Alleviation of Salt Stress in Wheat Seedlings via Multifunctional Bacillus aryabhattai PM34: An In-Vitro Study

Plant growth-promoting rhizobacteria play a substantial role in plant growth and development under biotic abiotic stress conditions. However, understanding about the functional of rhizobacterial strains for wheat salt remains largely unknown. Here we investigated antagonistic bacterial strain Bacillus aryabhattai PM34 inhabiting ACC deaminase exopolysaccharide producing ability to ameliorate salinity seedlings vitro The was isolated from potato rhizosphere screened different PGP traits comprising nitrogen fixation, potassium, zinc solubilization, indole acetic acid, siderophore, ammonia production, along with various extracellular enzyme activities. showed significant tolerance towards both stresses including (NaCl 2 M), heavy metal (nickel, 100 ppm, cadmium, 300 ppm), heat (60 °C), through mycelial inhibition Rhizoctonia solani (43%) Fusarium (41%). PCR detection ituC, nifH, acds genes coding iturin, nitrogenase, indicated potential promotion tolerance. In experiment, NaCl (2 M) decreased while inoculation enhanced germination% (48%), root length (76%), shoot (75%), fresh biomass (79%), dry (87%) over un-inoculated control 2M level. results experiments depicted augment when inoculated plants saline environment.