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International Journal of Agricultural Research

Year: 2009 | Volume: 4 | Issue: 2 | Page No.: 79-87
DOI: 10.3923/ijar.2009.79.87

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Authors


M.S. Linu

Country: India

J. Stephen

Country: India

M.S. Jisha

Country: India

Keywords


  • Phosphate solubilization
  • Gluconacetobacter sp.
  • Burkholderia sp.
  • FAME profiles
  • 16S rDNA typing
Research Article

Phosphate Solubilizing Gluconacetobacter sp., Burkholderia sp. and their Potential Interaction with Cowpea (Vigna unguiculata (L.) Walp.)

M.S. Linu, J. Stephen and M.S. Jisha
Eighty-one potential phosphate solubilizing bacteria isolated from rhizosphere soil were screened for their Mineral Phosphate Solubilizing (MPS) ability on Pikovskaya and National Botanical Research Institute`s Phosphate (NBRIP) medium. The majority of the isolates exhibited a strong ability to solubilize hydroxyapatite in both liquid and solid media. The solubilization in liquid medium corresponded with a decrease in the pH of the medium. Two bacterial strains exhibiting high solubilization of Tricalcium Phosphate (TCP) in Pikovskaya liquid cultures were identified as Gluconacetobacter sp. and Burkholderia sp. on the basis of phenotypic features, whole cell Fatty Acid Methyl Ester (FAME) profiles, 16S rDNA typing and carbon Substrate Utilization (SU) using Biolog GN2 plates. Seed inoculation of cowpea by these novel phosphate solubilizers improved nodulation, root and shoot biomass, straw and grain yield and phosphorus and nitrogen uptake of the crop. The dehydrogenase, phosphatase and the available P contents of the soil were stimulated by the inoculation with the phosphate solubilizing bacteria. Among the bacterial strains best effect on yield was obtained with Burkholderia sp.
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How to cite this article

M.S. Linu, J. Stephen and M.S. Jisha, 2009. Phosphate Solubilizing Gluconacetobacter sp., Burkholderia sp. and their Potential Interaction with Cowpea (Vigna unguiculata (L.) Walp.). International Journal of Agricultural Research, 4: 79-87.

DOI: 10.3923/ijar.2009.79.87

URL: https://scialert.net/abstract/?doi=ijar.2009.79.87

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Comments


rajendra bairwa Reply
20 May, 2019

this paper could support my research

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