It is an important trait in plant growth-promoting bacteria the ability to solubilize and mineralize insoluble inorganic phosphate compounds, making the element available for plants. High populations of phosphate solubilizing bacteria (PSB) will increases the P uptake by plants and reduce the application of organic fertilizers. In this study, a total of 14 PSB isolates from rhizosphere of maize, cotton, ragi, rice, turmeric, sugarcane, cowpea and green gram were tested for the mineral phosphate

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... solubilizing (MPS) activities in Hydroxy Apatite (HAP) broth by analyzing the soluble-P content after 72 h of incubation at 30 0 C. The 'P' solubilising ability of SGN 1 was found to be 35.56 mg/100ml isolated from sugarcane rhizosphere soil. SGN 1 which was showing higher phosphate solubilizing ability in HAP broth was selected for molecular characterization wit h amplifying and sequencing of 1.3 kb 16S rRNA gene. Based on the BLASTn homology it was found that PSB sugarcane isolate SGN1 havi ng 95% identity with showed 99% homology with Burkholderia thailandensis.