| 金属元素对Xhhh菌株表达MnP酶及降解污染物的影响 |
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| 引用本文： | 赵大勇,于洪峰,潘文扬,孙石磊,张徐祥,朱程军,肖琳,崔益斌,程树培.金属元素对Xhhh菌株表达MnP酶及降解污染物的影响[J].土壤,2007,39(3):448-452. |
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| 作者姓名： | 赵大勇 于洪峰 潘文扬 孙石磊 张徐祥 朱程军 肖琳 崔益斌 程树培 |
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| 作者单位： | 1. 南京大学污染控制与资源化研究国家重点实验室,南京,210093
2. 中国矿业大学环境与测绘学院,江苏徐州,221008 |
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| 基金项目： | 高等学校博士学科点专项科研项目;国家高技术研究发展计划(863计划) |
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| 摘 要： | 测定分析了制药废水中Mn2 、Cu2 、Zn2 和Se4 4种金属元素离子水平对跨界原生质体融合(IKPF)特效菌株Xhhh表达锰过氧化物酶(MnP)水平及降解有机污染物效率的影响。结果表明,影响MnP表达水平的金属元素离子顺序为Mn2 >Se4 >Zn2 >Cu2 。在MnP水平与生物比降解率(SDR)之间,存在极显著的正相关性(P<0.01)。研究结果为应用IKPF-Xhhh特效菌株处理制药废水的工艺设计提供了重要的分子生物学参数。本文还对Xhhh在土壤修复中的应用前景进行了分析讨论。
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| 关 键 词： | 制药废水 金属元素 生物降解 土壤修复 |
Effects of Metals on MnP Expression and Wastewater Degradation Efficiency of Xhhh Strain |
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| ZHAO Da-yong,YU Hong-feng,PAN Wen-yang,SUN Shi-lei,ZHANG Xu-xiang,ZHU Cheng-jun,XIAO Lin,CUI Yi-bin and CHENG Shu-pei.Effects of Metals on MnP Expression and Wastewater Degradation Efficiency of Xhhh Strain[J].Soils,2007,39(3):448-452. |
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| Authors: | ZHAO Da-yong YU Hong-feng PAN Wen-yang SUN Shi-lei ZHANG Xu-xiang ZHU Cheng-jun XIAO Lin CUI Yi-bin and CHENG Shu-pei |
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| Institution: | 1 State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing 210093, China; 2 School of Environment and Survey, Mining University of China, Xuzhou, Jiangsu 221008, China |
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| Abstract: | Effects of 4 metal ions,Mn2 ,Cu2 ,Zn2 and Se4 ,were determined on level of manganese peroxidase (MnP) expression and degradation efficiency of Strain Xhhh,an inter-kingdom protoplast fusant (IKPF) was constructed for degrading organic pollutants in wastewater from a pharmaceutical plant. Results showed that in terms of specific activity (MnP-SA) level,the four metals were in the order of Mn2 >Se4 >Zn2 >Cu2 . A significantly positive correlation (P<0.01) was observed between the MnP-SA level and the specific degradation rate (SDR). The findings provided some important molecular biological parameters that were useful in designing wastewater treatment technology using the IKPF-Xhhh strain. The prospect of application of Strain Xhhh to soil bioremediation was also discussed. |
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| Keywords: | MnP SDR |
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