| 砷对三角褐指藻、叉边金藻生长率的影响 |
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| 引用本文： | 肖虹滨,史致丽,赵夕旦,肖春霞.砷对三角褐指藻、叉边金藻生长率的影响[J].海洋科学,1995,19(1):47-52. |
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| 作者姓名： | 肖虹滨 史致丽 赵夕旦 肖春霞 |
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| 作者单位： | 青岛海洋大学化学系!266003 |
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| 基金项目： | 国家自然科学基金!NO．48970274 |
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| 摘 要： | 研究了砷对近岸水中三角褐指藻和叉边金藻的毒性，其阈值分别为１０＾－４．１ｍｏｌ／ｄｍ＾３和１０＾－４．９ｍｏｌ／ｄｍ＾３。根据活性点模式计算砷与两藻的结合常数为６９２．５和９８９．７。砷对叉边金藻的毒性作用不受磷酸盐浓度影响；砷对三角褐指藻的毒作用随磷酸盐浓度降低而受到抑制。
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| 关 键 词： | 砷 浮游植物 生长率 三角褐指藻 叉边金藻 |
| 收稿时间： | 1993/10/11 0:00:00 |
THE EFFECT OF ARSENATE ON THE GROWTH RATE OF Phaeodelylum tricornation, Dicratoria |
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| Xiao Hongbin,Shi Zhili,Zhao Xidan and Xiao Chunxia.THE EFFECT OF ARSENATE ON THE GROWTH RATE OF Phaeodelylum tricornation, Dicratoria[J].Marine Sciences,1995,19(1):47-52. |
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| Authors: | Xiao Hongbin Shi Zhili Zhao Xidan and Xiao Chunxia |
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| Abstract: | In f/2 culture medium (except EDTA), the threshold values of arsenate toxity to Phaeodeclylum tricornution and Dicratoria were determined to be 10-4. 1 and 10-4. 9 mol/dm3. The apparent association constants of arsenate to the two algae are 692. 5 and 989. 7. The toxity of arsenate to Dicratoria isn't affected by the concentration of phosphate, but the toxity of arsenate to Phaeodeclylum Tricornution will be prevented when the concentration of phosphate decreases. |
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| Keywords: | Arsenate Phytoplankton Growth rate |
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