Phosphate solubilizing ability of two Arctic Aspergillus niger strains

  • Shiv Mohan Singh
  • Lal Sahab Yadav
  • Sanjay Kumar Singh
  • Purnima Singh
  • Paras Nath Singh
  • Rasik Ravindra
Keywords: Phosphate, Arctic, fungi, Aspergillus

Abstract

Many filamentous fungi were isolated from the soils of Ny-Ålesund, Spitsbergen, Svalbard, and were screened in vitro for their phosphate solubilizing ability. Two strains of Aspergillus niger showed good tricalcium phosphate (TCP) solubilizing ability in Pikovskaya’s medium. The TCP solubilization index was calculated at varying levels of pH and temperatures. The ability of Aspergillus niger strain-1 to solubilize and release inorganic-P was 285µg ml-1, while Aspergillus niger strain-2 solubilized 262 µg ml-1 from 0.5% TCP after 7 days. This is the first report of TCP solubilization by Arctic strains that may serve as very good phosphate solubilizers in the form of biofertilizer.

Kewords: Phosphate, Arctic, fungi, Aspergillus

(Published: 15 June 2011)

Citation: Polar Research 2011, 30, 7283, DOI: 10.3402/polar.v30i0.7283

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Published
2011-06-15
How to Cite
Singh, S., Yadav, L., Singh, S., Singh, P., Singh, P., & Ravindra, R. (2011). Phosphate solubilizing ability of two Arctic Aspergillus niger strains. Polar Research. https://doi.org/10.3402/polar.v30i0.7283
Section
Research/review articles

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