Screening of salinity resistant rhizobacteria from rhizospheric soil of cajanus cajan l var. manak

In the present study, rhizospheric soil samples were collected from Cajanus cajan cultivated field from Hailakandi district of Assam, India. A total of thirteen (13) bacterial strains were isolated and identified on the basis of their morphological and biochemical characteristics and classified as Pseudomonas sp., Klebsiella sp., Bacillus sp. and Staphyllococcus sp.. All the strains were unable to solubilize phosphate and showed sensitivity against different antibiotics such as amikacin, tetracycline, streptomycin and gentamycin. Salt tolerance was observed upto 5% NaCl concentration for all the isolates and only two isolates showed moderate growth at 10% NaCl. Since GN1 and GN7 were able to survive at high salt concentration, they may be useful in crop fields or agricultural farms where the level of salt concentration is extremely high. In this way, it can also help in the process of bioremediation.