Assessment of biotechnological potential of phosphate solubilizing bacteria isolated from soils of Southern Kazakhstan


Phosphorus (P) is a vital plant nutrient, available to plant roots only in soluble forms that are in short supply in the soil. Adding phosphate- based fertilizers to increase agricultural yields is a widely used practice; however, the bio- availability of P remains low due to chemical transformations of P into insoluble forms. Thus, phosphate solubilizing bacteria (PSB) play an important role in reducing P deficiency in soil. The goal of this study was to assess biotechnological potential of phosphate-solubilizing bacterial strains. In this study, phosphate solubilizing microorganisms (PSM) were isolated from different soil samples of Southern regions of Kazakhstan. The biological activity of PSM was studied based on their effect on the growth of wheat seeds. The different taxonomic genera of these PSM were identified: Arthrobacter spp., Aureobacterium spp., Azotobacter spp., Bacterium spp., Baccillus spp. Finally, phosphate- solubilizing activity of isolated strains of PSM was assessed.

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Aipova, R. , Aitkeldiyeva, S. , Kurmanbayev, A. , Sadanov, A. and Topalova, O. (2010) Assessment of biotechnological potential of phosphate solubilizing bacteria isolated from soils of Southern Kazakhstan. Natural Science, 2, 841-845. doi: 10.4236/ns.2010.28105.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Corona, M.E.P., Klundert, I.V.D. and Verhoeven, J.T.A. (1996) Availability of organic and inorganic phosphorus compounds as phosphorus sources for carex species. New Phytologist, 133(2), 225-231.
[2] Pundarikakshudu, R. (1989) Studies of the phosphate dynamics in a vertisol in relation to the yield and nutrient uptake of rainfed cotton. Experimental Agriculture, 25(4), 39-45.
[3] Boronin, А.M. (1998) Rhizosphere bacteria of the genus Pseudomonas enabling plant growth and development. Sorovsky Educational Magazine, 10, 25-31.
[4] Omar, S.A. (1998) The role of rock-phosphate-solubilizing fungi and vesicular–arbusular-mycorrhiza (VAM) in growth of wheat plants fertilized with rock phosphate. World Journal of Microbiology and Biotechnology, 14(2), 211-218.
[5] Gilbert, N. (2009) Environment: The disappearing nutrient. Nature, 461(7265), 716-718.
[6] Khan, M.S., Zaidi, A. and Wani, P.A. (2007) Role of phosphate-solubilizing microorganisms in sustainable agriculture―A review. Agronomy for Sustainable Development, 27(1), 29-43.
[7] Rimkevich, O.V. (2006) Environmental and functional roles of microorganisms in technogenically disturbed soils (based on samples from Dambukinsk gold-mining site). Dissertation Thesis for Ph.D. Degree, Blago- veshensk.
[8] Tepper, E.Z., Shilnikova, V.K. and Pereverzeva, G.I. (2004) Microbiology practicum: Study aid for universities. Drofa, Moscow.
[9] Schroth, M.N. and Hancock, J.G. (1982) Disease-suppre- ssive soil and root-colonizing bacteria. Science, 216(4553), 1376-1381.
[10] Rodina, A.G. (1965) Aquatic microbiology methods. Nauka, Moscow; Leningrad.
[11] Namsaraev, B.B., Barkhutova, D.D. and Khakhinov, V.V. (2006) Field practicum in aquatic microbiology and aquatic chemistry. Ulan-Ude.
[12] Gromovyh, Т.I., Litovka, Y.А., Sadykova, V.S. and Gabdulina, И.G.-М. (2005) Perspective for applicationincrop science/biological features of a new strain of streptomyces lateritius 19/97-М, promising for use in crop science. Biotechnology, 5, 37-40.

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