| 纤维藻(Ankistrodesmus sp.)对镍的吸附、吸收作用及镍对其细胞形态结构影响 |
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| 引用本文： | 姜彬慧,林碧琴.纤维藻(Ankistrodesmus sp.)对镍的吸附、吸收作用及镍对其细胞形态结构影响[J].应用与环境生物学报,2000,6(6):535-541. |
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| 作者姓名： | 姜彬慧 林碧琴 |
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| 作者单位： | 1. 东北大学资源与土木工程学院沈阳 110003
2. 辽宁大学生物系沈阳 110036 |
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| 摘 要： | 纤维藻（Ankistrodesmussp.）对镍毒作用反应敏感，对Ni
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| 关 键 词： | 镍 纤维藻 吸附 吸收 细胞形态结构 |
| 修稿时间： | 2000年3月21日 |
ADSORPTION AND ABSORPTION OF NICKEL BY ANKISTRODESMUS SP. AND EFFECT OF NICKEL ON MORPHLOGICAL STRUCTURE OF ITS CELL |
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| JIANG Binhui,LIN Biqing.ADSORPTION AND ABSORPTION OF NICKEL BY ANKISTRODESMUS SP. AND EFFECT OF NICKEL ON MORPHLOGICAL STRUCTURE OF ITS CELL[J].Chinese Journal of Applied and Environmental Biology,2000,6(6):535-541. |
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| Authors: | JIANG Binhui LIN Biqing |
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| Abstract: | This study indicated that Ankistrodesmus sp. was sensitive to toxicity of heavy metal Nickel, and the amounts of Ni2+ adsorbed and absorbed by alga increased with rising of Ni2+ concentration. In the same concentration,the amounts of adhesion of Ni2+ by Ankistrodesmus sp. would reach the highest after 12 h at different exposure time. There was an evident positive relation between the uptake to Ni2+ and concentration of the test, r=0.99 (P<0.01). The cells had greater absorption of Ni2+, and the concentration factor (CF) for Ni2+ was found to be changed from 2.70×102 to 3.82×102. The effect of Ni2+ on the morphology of Ankistrodesmus sp. was also studied. it was found that when exposured to ρ(Ni2+)/μg mL-1=0.2, 0.8, 3.2,the cells were enlarged, proplast was withdrawn from the cell wall, and thlakoids were distroyed and swollen. In some cells,multivesiculate bodies were observed in cytoplasm, polyphosphate bodies were enlarged and their number decreased. Fig 4, Tab 1, Ref 20 |
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| Keywords: | Nickel Ankistudesmus sp adsorption absorption cell morphology |
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