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篇目详细内容 |
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【篇名】 |
The Fundamental Experiments of Red Tide Chemical Forecast |
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【刊名】 |
Frontiers of Chemistry in China |
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【刊名缩写】 |
Front. Chem. China |
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【ISSN】 |
1673-3495 |
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【EISSN】 |
1673-3614 |
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【DOI】 |
10.1007/s11458-005-0005-6 |
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【出版社】 |
Higher Education Press and Springer-Verlag |
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【出版年】 |
2006 |
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【卷期】 |
1
卷1期 |
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【页码】 |
86-97
页,共
12
页 |
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【作者】 |
Zhang ZhengBin,;
Liu Chunying;
Li Peifeng;
Wu Zhenzhen;
Lin Cai;
Huang Huawei;
Xing Lei;
Liu Liansheng;
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【关键词】 |
red tide; nitric oxide (NO); chemical forecast; the peak of self-produced NO; two types of NO threshold concentration |
【摘要】 |
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Many food algae and red tide algae were cultivated in the f/2 medium, and the nitric oxide (NO) concentration of the medium and the cell density were determined. The experiments on algae were conducted when different concentrations of NO were added into the medium using two methods. The results show that low concentrations of NO were self-produced by marine algae during the exponential growth period and were about nmol/L level. But at the end of the period, i.e., 2 or 3 days before the cell density reaches the maximum, an NO peak appeared, with the NO concentration reaching 10 nmol/L. The NO threshold concentration exists according to the influence of exogenous NO on the marine phytoplankton growth. One type is the threshold concentration that can promote algae growth, and its value is between 10 and 1 nmol level, or even lower. The other type can inhibit the phytoplankton growth, which is about μmol level or higher. The results indicate that red tide algae are far more sensitive to NO than are food algae. The fundamental experimental outcome above may provide a new clue for red tide chemical forecast by inspecting the NO change. |
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