Influence of nitrogen and phosphorus concentrations on the growth characteristics of <em>Microcystis aeruginosa</em>

ZHENG Xiao-yu; JIN Yan; REN Xiang-yu; GU Yong-jie; ZHU Yong-qing; YANG yi-fan

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Jan. 2012

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Article Navigation > Journal of East China Normal University (Natural Sciences) > 2012 > (1): 11-18

ZHENG Xiao-yu, JIN Yan, REN Xiang-yu, GU Yong-jie, ZHU Yong-qing, YANG yi-fan. Influence of nitrogen and phosphorus concentrations on the growth characteristics of Microcystis aeruginosa[J]. Journal of East China Normal University (Natural Sciences), 2012, (1): 11-18.

Citation:

ZHENG Xiao-yu, JIN Yan, REN Xiang-yu, GU Yong-jie, ZHU Yong-qing, YANG yi-fan. Influence of nitrogen and phosphorus concentrations on the growth characteristics of Microcystis aeruginosa[J]. Journal of East China Normal University (Natural Sciences), 2012, (1): 11-18.

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Influence of nitrogen and phosphorus concentrations on the growth characteristics of Microcystis aeruginosa

1.
Shanghai Key Laboratory for Urban Ecology and Sustainability, East China Normal University, Shanghai 200062, China;
2.
Shanghai Academy of Environmental Sciences,Shanghai 200233, China

Received Date: 2011-01-01
Rev Recd Date: 2011-04-01
Publish Date: 2012-01-25

Abstract

Abstract

Microystis aeruginosa was cultured in solutions of different initial nitrogen and phosphorus concentrations. The semi-saturation constants (Ks) of Microystis aeruginosa to P and N were calculated respectively by using the Monod equation. The results show that the Microystis aeruginosa grew normally when the concentrations of N and P were greater than 4.0 mgL-1 and mgL-1 respectively. The optimum concentration ranges of N and P for Microystis aeruginosa growth were 32.0~64.0 mgL-1 and 1.0~1.50 mgL-1 respectively. KsN is higher than Ksp, which indicates that the affinity of P to Microystis aeruginosa is higher than N. When the concentration ranges of N and P were 0.20~64.0 mgL-1 and 0.02~1.50 mgL-1 respectively，they had high liner correlation with the largest extent quantity of Microystis aeruginosa. The special growth rate increases continuously when the concentration ranges of N and P are 0.20~1.60 mgL-1 and 0.02~0.50 mgL-1 respectively.
- Microcystis aeruginosa,
- nitrogen,
- phosphorus,
- growth characteristics

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References(1)

References

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