Abstract
Many filamentous fungi were isolated from the soils of Ny-A…lesund, 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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