Screening of Halophilic Microorganisms (Oceanobacillus Oncorhynchi and Pseudomonas Stutzeri) for the Effect of Plant Growth Promotion and Its Formulation as a Biofertilizer

International Journal of Agriculture & Environmental Science

© 2018 by SSRG - IJAES Journal

Volume 5 Issue 2

Year of Publication : 2018

Authors : Deepalaxmi. R.K, Gayathri.C

10.14445/23942568/IJAES-V5I2P103

How to Cite?

Deepalaxmi. R.K, Gayathri.C, " Screening of Halophilic Microorganisms (Oceanobacillus Oncorhynchi and Pseudomonas Stutzeri) for the Effect of Plant Growth Promotion and Its Formulation as a Biofertilizer ," SSRG International Journal of Agriculture & Environmental Science, vol. 5,  no. 2, pp. 11-19, 2018. Crossref, https://doi.org/10.14445/23942568/IJAES-V5I2P103

Abstract:

A quest for Plant Growth Promoting bacteria are increasing expeditiously as efforts are made to exploit them commercially as inoculum preparations ie., biofertilizers. In this work, a comparative study is carried out to assess the ability of the halobacterial strains in plant growth promotion and in addition tested for the ability of the isolate whether it could solubilize phosphate.These halobacterial strains were isolated and identified as Oceanobacillus oncorhynchi and Pseudomonas stutzeri by 16s rRNA sequence. The effectiveness of the isolate in plants seed germination and growth were analyzed in crops like Chickpea, Cowpea, Green gram and Pearl millet etc in which P.stutzeri showed a significant increase in plant root and shoot length than O.oncorhynchi. Thus, the ability to perform multifarious plant growth promoting activities together suggested uniqueness of P. stutzeri and its potential use in developing a cost-effective eco-friendly multifunctional biofertilizer and biocontrol agent in agriculture. Further the optimal growth conditions such as pH, NaCl concentrations and temperature were studied for the effective isolation of the isolate.

Keywords:

Plant Growth Promotingbacteria(PGPR), Biofertilizer, Oceanobacillus oncorhynchi, Pseudomonas stutzeri, Seed germination test

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