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学科主题: Chemistry ; Analytical; Chemistry ; Physical
题名: Effects of ytterbium ion on the growth, metabolism and membrane fluidity of Tetrahymena thermophila
作者: Chen, X.-J.; Feng, W.-S; Miao, W.; Shen, Y.-F.; Yu, Y.-H.
通讯作者: Yu, YH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: cell growth ; isothermal calorimetry ; membrane fluidity ; metabolism ; Tetrahymena thermophila BF5 ; Yb3+
刊名: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
发表日期: 2007-09-01
DOI: 10.1007/s10973-007-8510-0
卷: 89, 期:3, 页:835-839
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Minist Water Res, Inst Hydroecol, Wuhan 430079, Peoples R China; Chinese Acad Sci, Wuhan 430079, Peoples R China
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Chemistry, Analytical ; Chemistry, Physical
研究领域[WOS]: Chemistry
摘要: Power-time curves and metabolic properties of Tetrahymena thermophila BF5 exposed to different Yb3+ stop levels were studied by ampoule method of isothermal calorimetry at 28 degrees C. Metabolic rate (r) decreased significantly while peak time (PT) increased with the increase of Yb3+ stop. These results were mainly due to the inhibition of cell growth, which corresponded to the decrease of cell number obtained by cell counting. Compared with cell counting, calorimetry was sensible, easy to use and convenient for monitoring the toxic effects of Yb3+ stop on cells and freshwater ecosystem. It was also found that cell membrane fluidity decreased significantly under the effects of Yb3+ stop, which indicated that Yb3+ could be membrane active molecules with its effect on cell membranes as fundamental aspect of its toxicity.
英文摘要: Power-time curves and metabolic properties of Tetrahymena thermophila BF5 exposed to different Yb3+ stop levels were studied by ampoule method of isothermal calorimetry at 28 degrees C. Metabolic rate (r) decreased significantly while peak time (PT) increased with the increase of Yb3+ stop. These results were mainly due to the inhibition of cell growth, which corresponded to the decrease of cell number obtained by cell counting. Compared with cell counting, calorimetry was sensible, easy to use and convenient for monitoring the toxic effects of Yb3+ stop on cells and freshwater ecosystem. It was also found that cell membrane fluidity decreased significantly under the effects of Yb3+ stop, which indicated that Yb3+ could be membrane active molecules with its effect on cell membranes as fundamental aspect of its toxicity.
关键词[WOS]: PHOSPHATIDYLCHOLINE ; MICROCALORIMETRY ; PYRIFORMIS ; TOOL
语种: 英语
WOS记录号: WOS:000249206300026
ISSN号: 1388-6150
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8446
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Minist Water Res, Inst Hydroecol, Wuhan 430079, Peoples R China
3.Chinese Acad Sci, Wuhan 430079, Peoples R China

Recommended Citation:
Chen, X.-J.; Feng, W.-S; Miao, W.; Shen, Y.-F.; Yu, Y.-H..Effects of ytterbium ion on the growth, metabolism and membrane fluidity of Tetrahymena thermophila,JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2007,89(3):835-839
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