Studies on the toxic effects of La3+ to Tetrahymena thermophila by microcalorimetry
文献类型：期刊论文
| 作者 | Chen Xiaojuan ; Feng Weisong ; Yu Yuhe ; Wan Chengyan ; Peng Jianhua |
| 刊名 | BIOLOGICAL TRACE ELEMENT RESEARCH
 |
| 出版日期 | 2008 |
| 卷号 | 123期号:1-3页码:242-249 |
| 关键词 | La3+ Tetrahymena thermophila microcalorimetry thermogenic curves inhibition cell growth membrane fluidity |
| 通讯作者 | Chen, XJ, Minist Water Resources, Inst Hydroecol, Wuhan 430079, Peoples R China |
| 中文摘要 | The toxic effects of La3+ on Tetrahymena thermophila have been studied by microcalorimetry at 28 degrees C. The metabolic rate constant (r) and peak time were linked to the concentration of La3+. The changes of metabolic rate constant indicated that low-concentration La3+ (0-75 mg/L) had no significant effects on the metabolism of Tetrahymena cells but high-concentration La3+ (100-175 mg/L) could inhibit their metabolism. From the results obtained by cell counting and fluorescence depolarization measurements, the inhibition of metabolism resulted from the decrease in cell number and the reduction in cell membrane fluidity. According to the results, it is clear that the metabolic mechanism of Tetrahymena cells has been changed with the addition of high-concentration La3+. In addition, microcalorimetry of Tetrahymena could be a sensible, easy-to-use, and convenient method for monitoring the potential effects of rare earth elements on cells and the freshwater ecosystem. |
| 学科主题 | Biochemistry & Molecular Biology; Endocrinology & Metabolism |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/8124]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 推荐引用方式 GB/T 7714 | Chen Xiaojuan,Feng Weisong,Yu Yuhe,et al. Studies on the toxic effects of La3+ to Tetrahymena thermophila by microcalorimetry[J]. BIOLOGICAL TRACE ELEMENT RESEARCH,2008,123(1-3):242-249. |
| APA | Chen Xiaojuan,Feng Weisong,Yu Yuhe,Wan Chengyan,&Peng Jianhua.(2008).Studies on the toxic effects of La3+ to Tetrahymena thermophila by microcalorimetry.BIOLOGICAL TRACE ELEMENT RESEARCH,123(1-3),242-249. |
| MLA | Chen Xiaojuan,et al."Studies on the toxic effects of La3+ to Tetrahymena thermophila by microcalorimetry".BIOLOGICAL TRACE ELEMENT RESEARCH 123.1-3(2008):242-249. |
入库方式： OAI收割
来源：水生生物研究所
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