| 环境条件对极大螺旋藻金属元素吸收的影响 |
| |
| 引用本文： | 李建宏,曾昭琪,薛宇鸣,邰子厚.环境条件对极大螺旋藻金属元素吸收的影响[J].湖泊科学,1996,8(2):119-124. |
| |
| 作者姓名： | 李建宏 曾昭琪 薛宇鸣 邰子厚 |
| |
| 作者单位： | 南京大学生物科学与技术系!南京210093南京师范大学生物系邮政编码210024(李建宏)，南京大学生物科学与技术系!南京210093(曾昭琪)，南京大学配位化学国家重点实验室!南京210093(薛宇鸣，邰子厚) |
| |
| 摘 要： | 研究卫不同微量元素浓度和不同ＥＤＴＡ加入量对极大螺旋藻金属元素吸收的影响。结果显示，增加培养基中的微量元素含量有利于藻细胞对金属元素的吸收。少量ＥＤＴＡ的加入，有助于部分金属元素的吸收，较大量的ＥＤＴＡ可阻碍金属元素的吸收。藻细胞的吸附实验表明，极大螺旋藻对Ｃｏ、Ｎｉ、Ｃｕ、Ｚｎ、Ｐｂ有很强的吸附能力，死细胞与活细胞的吸附能力相近，表明这一吸附过程不依赖于生理活动。
|
| 关 键 词： | 螺旋藻 金属元素 环境条件 吸收作用 |
| 收稿时间： | 1995/3/29 0:00:00 |
| 修稿时间： | 1995/6/30 0:00:00 |
Effects of different environmental conditions on the absorption of metal elements in spirulina maxima |
| |
| Li Jianhong,Zeng Zhaoqi,Xue Yuming and Tai Zihou.Effects of different environmental conditions on the absorption of metal elements in spirulina maxima[J].Journal of Lake Science,1996,8(2):119-124. |
| |
| Authors: | Li Jianhong Zeng Zhaoqi Xue Yuming and Tai Zihou |
| |
| Institution: | Department of Biology Science and Biotechnology, Nanjing University. Nanjing 210093,Department of Biology Science and Biotechnology, Nanjing University. Nanjing 210093,State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093 and State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093 |
| |
| Abstract: | The effects of different concentrations of trace element solutions (A5 and B6) and different quantites of EDTA in media on the contents of metal elements in Spirulina maxima were studied. The results show that by increasing the concentrations of A5 and B6 trace elements from 1mL/L (Zarrouk medium) to 3mL/L in medium, the contents of most metal ions in algae increased. However, if A5 and B6 were increased to 5mL/L, no more increase of metal contents was observed except for K, Zn and Pb. The metal contents of algae were decreased when increasing EDTA in medium, while the contents of Cr, Fe, Sr and Ti in algae were, when EDTA was 0. 08g/L in medium, higher than those in the algae cultured without EDTA. The results suggest that higher concentrations of metal ions in medium increased algae absorbing metal ions and EDTA can make algae absorbing metal ions decreased.The experiment on the adsorption of heavy metal elements on intact algal cells shows that 5. maxima strongly adsorbed Co, Ni, Cu, Zn and Pb ions in 30 minutes. The adsorption capacity of cells killed by formol was comparable to living cells, strongly suggesting that the adsorption was independent of physiological reactions. |
| |
| Keywords: | Spirulina maxima metal elements environment adsorption absorption |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《湖泊科学》浏览原始摘要信息 |
| 点击此处可从《湖泊科学》下载免费的PDF全文 |
|
