World Journal of Microbiology and Biotechnology

, Volume 14, Issue 5, pp 669–673

Effect of buffering on the phosphate-solubilizing ability of microorganisms

Authors

  • P. Gyaneshwar
    • Centre for Genetic EngineeringIndian Institute of Science
  • G. Naresh Kumar
    • Department of Biochemistry, Faculty of ScienceM.S. University of Baroda
  • L.J. Parekh
    • Department of Biochemistry, Faculty of ScienceM.S. University of Baroda
Article

DOI: 10.1023/A:1008852718733

Cite this article as:
Gyaneshwar, P., Kumar, G.N. & Parekh, L. World Journal of Microbiology and Biotechnology (1998) 14: 669. doi:10.1023/A:1008852718733

Abstract

Native microflora present in the alkaline vertisols and two phosphate-solubilizing bacteria (PSB) isolated from soil using conventional screening media could not release phosphorus from alkaline Indian vertisol soils supplemented with carbon and nitrogen sources. The two PSBs could solubilize both rock phosphate and di-calcium phosphate in unbuffered media but failed to solubilize rock phosphate in buffered media. The organic acids secreted by these PSBs were 20–50 times less than that required to solubilize phosphorus from alkaline soil.

Organic acids and phosphate solubilizing microorganismsphosphate solubilization

Copyright information

© Kluwer Academic Publishers 1998