| Pb^2＋污染对凤眼莲根系微生物的影响 |
| |
| 引用本文： | 李裕红,陈怀宇,陈琳,张鼐,桑庆亮.Pb^2＋污染对凤眼莲根系微生物的影响[J].泉州师范学院学报,2010,28(6):18-21. |
| |
| 作者姓名： | 李裕红 陈怀宇 陈琳 张鼐 桑庆亮 |
| |
| 作者单位： | [1]泉州师范学院化学与生命科学学院,福建泉州362000 [2]福建师范大学生命科学学院,福建福州350108 [3]厦门大学环境科学研究中心,福建厦门361005 |
| |
| 基金项目： | 国家自然科学基金面上项目，福建省高校服务海西建设重点项目，泉州市科技计划项目 |
| |
| 摘 要： | 研究系列浓度铅污染对凤眼莲根系的细菌、放线菌、霉菌和酵母菌等的活菌数和相应水样的DO（溶解氧量）、COD（化学需氧量）的影响.结果表明,Pb2＋对凤眼莲根系微生物的数量及水样DO值和COD值的影响具有时间和浓度上的双重效应.细菌为凤眼莲根系微生物的优势类群,当Pb2＋高于0.25 mmol.L-1时会减少细菌的数量,影响其净化水体的能力.DO值和COD值与凤眼莲根系微生物的数量增长存在密切关系.
|
| 关 键 词： | Pb2＋污染 凤眼莲 根系微生物 溶解氧量 化学需氧量 |
Effects of Pb2+ Pollution on the Micro-organisms of Eihhornia Crassipes Roots |
| |
| LI Yu-hong,CHEN Huai-yu,CHEN Lin,ZHANG Nai,SANG Qing-liang.Effects of Pb2+ Pollution on the Micro-organisms of Eihhornia Crassipes Roots[J].Journal of Quanzhou Normal College,2010,28(6):18-21. |
| |
| Authors: | LI Yu-hong CHEN Huai-yu CHEN Lin ZHANG Nai SANG Qing-liang |
| |
| Institution: | 1.School of Chemistry and Life Sciences,Quanzhou Nomal University,Fujian 362000,China;2.College of Life Science,Fujian Normal University,Fujian 350108,China;3.Environmental Science Research Center,Xiamen University,Fujian 361005,China) |
| |
| Abstract: | The effects of Pb2＋ pollution on the amount of the Bacteria,Actinomycosis,Streptomyces and Yeast of the Eichhornia Crassipes root cultivated in the water with various concentration of Pb2＋ ranging from 0 to 2.0 mmol·L-1 were studied,accompanied with monitoring DO,COD from corresponding sample water.The results shows that the amount of those micro-organisms of Eichhornia crassipes root and the value of DO,COD influenced by Pb2＋ depend on both treating time and concentrations of Pb2＋.Bacteria is dominant kind of these micro-organisms.The number of Bacteria decrease under the pollution stress of Pb2＋ with higher than 0.25 mmol·L-1,which would decrease the capability of Eichhornia crassipes to clean water body.There exists a close relationship between DO,COD and the growth of micro-organisms in water body. |
| |
| Keywords: | Pb2＋ pollution Eichhornia crassipes micro-organisms of root DO COD |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
