Dr. Saranya Devi K

Screening of salt tolerant and growth promotion efficacy of phosphate solubilizing bacteria.

• Authors Details :  
• V. Mohan,  
• K. Saranya Devi,  
• A. Anushya,  
• G. Revath,  
• G. Viji Kuzhalvaimozhi,  
• K.s. Vijayalakshmi

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An attempt was made for screening of salt tolerant against sodium chloride (NaCl) salt and growth promotion efficacy of eight different phosphate solubilizing bacterial (PSB) isolates under in vitro conditions. An efficient isolate which exhibited maximum phosphate solubilization, salt tolerant, Indole-3-Acetic Acid (IAA) production and root colonization potential in maximum concentration of NaCl (7%) was identified as Bacillus cereus based on 16S rRNA sequencing. It was recorded that highest phosphate solubilization in 7% NaCl concentration (70% and 374 μg/mL) in agar plate and broth assay respectively. IAA production was observed to be decreased when salt concentration increases, the isolate showed significant amount of IAA in normal culture media without amendment of NaCl (74.94 μg/mL) and at 7% gradual decrease of IAA production was observed (30 μg/mL). Maximum colonization of isolate in the roots of Zea mays was also observed in the study.

Article Subject Details

• Biological Sciences

Article Keywords Details

• phosphate solubilization
• salinity
• salt tolerant
• Zea mays.
• Bacillus cereus

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