| 抗重金属霉菌的筛选鉴定及其特性研究 |
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| 引用本文： | 姜华,魏晓晴,胡晓静. 抗重金属霉菌的筛选鉴定及其特性研究[J]. 辽宁师范大学学报(自然科学版), 2007, 30(1): 100-103 |
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| 作者姓名： | 姜华 魏晓晴 胡晓静 |
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| 作者单位： | 辽宁师范大学,生命科学学院,辽宁,大连,116029;辽宁出入境检验检疫局,辽宁,大连,116001 |
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| 基金项目： | 辽宁省教育厅资助项目（2004D217） |
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| 摘 要： | 采用微生物学法,通过生物耐受性诱导驯化,从污水处理厂活性污泥中分离到了能抗重金属镉、铬、砷、汞和铅的4株霉菌,鉴定为变幻青霉、桔黑青霉、淡紫拟青霉和链格孢霉.经原子吸收光谱及原子荧光光度计检测证明,4种霉菌对As^5＋的耐、抗性强,对Hg^2＋的耐、抗性弱.对As^5＋的耐、抗性高达1.0 g/L,对重金属离子去除率可达40%.这些抗性微生物有望应用于被重金属污染的水体及土壤.
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| 关 键 词： | 重金属污染 霉菌 微生物修复 |
| 文章编号： | 1000-1735（2007）01-0100-04 |
| 修稿时间： | 2006-09-08 |
Screening and identification of resistant heavy metal Fungi and study of its characteristics |
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| JIANG Hua,WEI Xiao-qing,HU Xiao-jing. Screening and identification of resistant heavy metal Fungi and study of its characteristics[J]. Journal of Liaoning Normal University(Natural Science Edition), 2007, 30(1): 100-103 |
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| Authors: | JIANG Hua WEI Xiao-qing HU Xiao-jing |
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| Affiliation: | 1, College of Life Science, Liaoning Normal University, Dalian 116029, China; 2. Liaoning Entry-Exit Inspection and Quarantine Bureau,Dalian 116001,China |
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| Abstract: | Through tameness and induction of living creature's tolerance from dirty mud,we have cultivated four fungi able to resist the pollutions from poisonous chemical elements such as arsenic,chromium,cadmium,hydrargyrum,which were identificated as Penicillium variabile Sopp,Penicillium citreonigrum Dierckx,Paecilomyces lilacinus(Thom) Samson,Alternaria alternata(Fr.) Keissler.The atomic absorption spectroscopy and atomic fluorescence spectrophotometer analysises show that,the four fungi have stronger tolerance to As5+ and weaker tolerance to Hg2+.These fungi have tolerance of 1.0 g/L to As5+,and the removal rate for the 5 heavy metals could reach 40%.These anti-heavy-metal microbes may be used in water and soil polluted by heavy metals. |
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| Keywords: | heavy metal pollution Fungi micromediation |
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