| 黑曲霉对含钾矿物的解钾作用与机理分析 |
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| 引用本文： | 胡婕,郁建平,连宾.黑曲霉对含钾矿物的解钾作用与机理分析[J].矿物岩石地球化学通报,2011,30(3):277-285. |
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| 作者姓名： | 胡婕 郁建平 连宾 |
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| 作者单位： | 1. 贵州大学生命科学学院,贵阳,550025
2. 中国科学院地球化学研究所,环境地球化学国家重点实验室,贵阳550002 |
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| 基金项目： | 国家高技术研究发展计划项目(2008AA06Z108); 国家自然科学基金委创优群体资助项目(41021062); 中国科学院“百人计划”项目 |
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| 摘 要： | 通过测定黑曲霉(Aspergillus niger)对含钾矿粉的解钾量、黑曲霉作用含钾矿粉后的代谢产物(多糖、蛋白质、小分子分泌物)以及微环境中的pH值等,比较静置培养和震荡培养条件下黑曲霉对含钾矿粉的作用效果,并分析震荡培养下黑曲霉对含钾矿粉的风化作用机理。结果显示,震荡培养下黑曲霉对含钾矿粉的转化作用显著大于静置培养,震荡培养下黑曲霉作用含钾矿粉与否导致培养液中的代谢产物以及真菌-矿物聚集体微环境中pH值有显著改变。分析表明,黑曲霉生长形成的真菌-矿物聚集体、黑曲霉菌丝生长及其代谢产物、酸性微环境在含钾矿粉转化过程中发挥重要作用;黑曲霉对含钾矿粉的解钾作用应该是多种因素协同作用导致的综合效果。研究结果对完善真菌风化含钾矿物的作用机理,有效利用微生物转化低品位矿物钾技术提供了参考。
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| 关 键 词： | 黑曲霉 含钾矿物 真菌-矿物聚集体 代谢产物 微环境 钾 |
Capability and Mechanism of Potassium Releasing from Potassium-bearing Minerals by Aspergillus niger |
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| HU Jie,YU Jian-ping,LIAN Bin.Capability and Mechanism of Potassium Releasing from Potassium-bearing Minerals by Aspergillus niger[J].Bulletin of Mineralogy Petrology and Geochemistry,2011,30(3):277-285. |
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| Authors: | HU Jie YU Jian-ping LIAN Bin |
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| Institution: | HU Jie1,YU Jian-ping1,LIAN Bin21.College of Life Science,Guizhou University,Guiyang,550025,China,2.State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,550002 |
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| Abstract: | By measuring contents of released potassium,metabolites(polysaccharides,proteins,small molecules)and pH values of the micro-environment in the culture,we compare the difference of Aspergillus niger's capability to release potassium from potassium-bearing mineral powders in static and dynamic cultures,and discuss the mechanism of releasing potassium from potassium-bearing mineral powders in different culture by A.niger.The results indicate that the capability of releasing potassium by the fungi in the liquid... |
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| Keywords: | Aspergillus niger potassium-bearing mineral fungal-mineral aggregation metabolite micro-environment potassium |
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