| Effect of Aspergillus niger on weathering of phosphorite rock |
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| 作者姓名： | Shu CHEN Congqiang LIU Bin LIAN |
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| 作者单位： | [1]State Key Laboratory of Envtronmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China [2]Graduate University of the Chinese Academy of Sciences, Beijing 100039, China |
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| 摘 要： | Weathering mechanism of phosphorite rock by Aspergillus niger has been studied. Ten strains of phosphate-solubilizing fungi were isolated from rhizosphere soils by using dilute plate method in solid inorganic phosphorus culture. According to the size of soluble phosphate circle in the medium, a strain of stronger phosphate-solubilizing fungus was acquired, which was identified as, Aspergillus niger using identification methods of morphology and ITS sequences comparison in Genbank. In liquid culture, incubation in static state, the weathering of apatite rock with the fungus by contrast method： putting apatite powder （200 mesh） in liquid culture medium of flask, inoculation fungus after autoclave （setting sterile control） for studying direct weathering process; putting dialysis bag with apatite powder （200 mesh） in liquid culture medium of flask, inoculation fungus after autoclave （setting sterile control） for studying indirect weathering process.
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| 关 键 词： | 磷灰石 曲霉菌 风化作用 岩石 |
Effect of Aspergillus niger on weathering of phosphorite rock |
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| Shu CHEN Congqiang LIU Bin LIAN.Effect of Aspergillus niger on weathering of phosphorite rock[J].Chinese Journal of Geochemistry,2006,25(B08):171-172. |
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| Abstract: | |
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| Keywords: | phosphorite rock Aspergillus niger weathering |
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