Effect of a Strain of Aspergillus Niger on Weathering of Phosphorite
详细信息
- 责任者：Chen Shu (Key Laboratory of Solid Waste Treatment and Resource Recycle ; Ministry of Education ; Southwest University of Science and Technology ; Mianyang 621010 ; China) ; Liu Congqiang
- 刊名：Acta Mineralogica Sinica
- 出版年：2009
- 卷期：29(1)
- 关键词：细菌 ; bacteria ; 磷灰石 ; apatite ; 风化作用 ; weathering
- 页码：p.103-108
- 图表：3 illus., 1 table, 21 refs.
- 分类号：0600
- issnNo：ISSN1000-4734
- isbnNo：CN52-1045/P
摘要
The aim of this study is to examine the effect of a phosphate-solubilizing fungus isolated from the rhizosphere of plant on the weathering of phosphorite rock. The fungal ITS sequence was amplified by the PCR method with general primers of ITS5 and ITS4, and sequenced. The fungus was identified by the methods of identifying morphologic features and comparing ITS sequences in Genbank. The result indicated the concentrations of Ca2+ in the supernatant liquid rose from 10.02 mg/L on the third day to 217. 61 mg/L on the 30th day, and the amount of the soluble phosphorus increased from 5.37 mg/L on the third day to 921.37 mg/L on the 30th d.