| 一种底栖蓝藻(Tolypothrixsp.)的光合效率测定 |
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| 引用本文： | 陈宇炜,Martin Dokulil.一种底栖蓝藻(Tolypothrixsp.)的光合效率测定[J].湖泊科学,1999,11(2):165-171. |
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| 作者姓名： | 陈宇炜 Martin Dokulil |
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| 作者单位： | 中国科学院南京地理与湖泊研究所!南京210008，InstituteofLimnology!A-5310Mondsee，Austria |
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| 基金项目： | 奥地利科学院湖泊研究所国际湖泊学培训班研究项目． |
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| 摘 要： | 底栖蓝藻是一些底栖动物如介形虫的良好食物，在自然状态下呈丝状，但经室内培养后会形成很大的且难以分开的球形群体。本研究着眼于这种蓝藻在室内培养条件下的光合效率的测定，运用同位素＾１４Ｃ方法和黑白瓶测氧法对不同光照强度和温度下它的光合效率和呼吸率进行对比测定。
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| 关 键 词： | 底栖蓝藻 光合效率 温度 光照强度 蓝藻 |
| 收稿时间： | 8/6/1997 12:00:00 AM |
| 修稿时间： | 1997/3/10 0:00:00 |
Measurement of Photosynthetic Rate of a Cultured Benthic Blue-green Alga:Tolypothrix sp. |
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| CHEN Yu-wei and Martin Dokulil.Measurement of Photosynthetic Rate of a Cultured Benthic Blue-green Alga:Tolypothrix sp.[J].Journal of Lake Science,1999,11(2):165-171. |
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| Authors: | CHEN Yu-wei and Martin Dokulil |
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| Institution: | Nanjing institute of Geography and Limnology, Naming 210005, P. R. China and Institute of Limnology, A-5310 Mindare. Austria |
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| Abstract: | Photosynthesis of a cultured benthic blue-green alga Tolypothrix sp. was measured under light and temperature conditions using oxygen light-dark bottle method and 14 C light-dark bottle method. Respiratory rates of the alga were also measured at different temperatures. Photosgnthetic rates increased with increasing temperatures. Respiratory rates did not show significant differences among different temperatures. Photosynthetic rates were almost the same under light intensities lower than 400 GEm~(-2)s~(-1) Comparing the oxygen and 14 C method, the photosynthetic quotient Q (moles O_2 per moles C) of Tolypothrix sp. in these experiments was about 1. 11. The method for the measurement of photosynthesis of such kind of benthic alga was improved in this paper. |
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| Keywords: | Tolytythrix sp benthic alga photosynthesis temperature |
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