| Comparative Studies on Phosphorus Uptake and Growth Kinetics of the Microalga Tetraselmis subcordiformis and the Macroalga Ulva pertusa |
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| 作者姓名： | NANChunrong DONGShuanglin |
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| 作者单位： | AquacultureResearchLaboratory,OceanUniversityofChina,Qingdao266003,P.R.China |
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| 摘 要： | Short-term uptake experiments and long-term semicontinuous culture experiments were performed under the condition of phosphorus (P) limitation to estimate and compare the P uptake and growth kinetics of the microalga Tetraselmis subcordiformis and the macroalga Ulva pertusa. Two new parameters, the maximum specific uptake rate (Vm^sp) and the maximal growth efficiency (β), are introduced to achieve uniformity for the comparison of nutrient uptake and growth efficiency between microalgae and macroalgae. T. subcordiformis possesses 3 times lower half saturation uptake constant, 4 times higher maximal growth rate and 20 times higher maximum specific uptake rate than U. pertusa, while U. pertusa possesses 4 times higher maximal growth efficiency than T. subcordiformis.
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| 关 键 词： | 磷利用率 实验 生长速率 海洋微藻 石莼 |
Comparative Studies on Phosphorus Uptake and Growth Kinetics of the Microalga Tetraselmis subcordiformis and the Macroalga Ulva pertusa |
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| NANChunrong DONGShuanglin.Comparative Studies on Phosphorus Uptake and Growth Kinetics of the Microalga Tetraselmis subcordiformis and the Macroalga Ulva pertusa[J].Journal of Ocean University of China,2004,3(1):56-59. |
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| Authors: | NAN Chunrong Dong Shuanglin |
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| Institution: | 1. Aquaculture Research Laboratory, Ocean University of China, Qingdao 266003, P. R. China ;Marine Biology Institute, Science Center, Shantou University, Shantou 515063, P.R. China
2. Aquaculture Research Laboratory, Ocean University of China, Qingdao 266003, P. R. China |
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| Abstract: | Short-term uptake experiments and long-term semicontinuous culture experiments were performed under the condition of phosphorus (P) limitation to estimate and compare the P uptake and growth kinetics of the microalga Tetraselmis subcordiformis and the macroalga Ulva pertusa. Two new parameters, the maximum specific uptake rate (Vspm) and the maximal growth efficiency (β), are introduced to achieve uniformity for the comparison of nutrient uptake and growth efficiency between microalgae and macroalgae. T. subcordiformis possesses 3 times lower half saturation uptake constant, 4 times higher maximal growth rate and 20 times higher maximum specific uptake rate than U. pertusa, while U. pertusa possesses 4 times higher maximal growth efficiency than T. subcordiformis. |
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| Keywords: | Ulva pertusa Tetraselmis subcordiformis phosphorus kinetics maximum specific uptake rate maximal growth efficiency |
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