| 
            
        | PGPR(Cellml-1) | Saline stress (mM) |  
        | 0 | 35 | 70 |  
        | Control | 6.68±0.05c | 3.55±0.09i | 3.50±0.01i |  
        | A. vinelandii | 104 | 6.77±0.06c | 4.31±0.05f | 3.62±0.14hi |  
        | 108 | 6.99±0.01b | 4.57±0.06e | 3.65±0.13hi |  
        | P. fluorescens | 104 | 7.91±0.03a | 4.81±0.03d | 3.78±0.07h |  
        | 108 | 7.99±0.02a | 4.98±0.03d | 3.99±0.05g |  
        | P. putida | 104 | 6.68±0.06c | 3.65±0.02hi | 3.50±0.02i |  
        | 108 | 6.66±0.04c | 3.66±0.06hi | 3.62±0.07hi |  
        | Means followed by the same letter are not    significantly different. |  |