Nitrogen and phosphorus nutrition physiology of <em>Enteromorpha linza</em> and <em>Bryopsis plumosa</em>

SHAO Kui-shuang; GONG Ning; LI Ke; WANG Zong-ling; LI Da-cheng

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SHAO Kui-shuang, GONG Ning, LI Ke, WANG Zong-ling, LI Da-cheng. Nitrogen and phosphorus nutrition physiology of Enteromorpha linza and Bryopsis plumosa[J]. Haiyang Xuebao, 2011, 33(3): 131-139.

Citation:

SHAO Kui-shuang, GONG Ning, LI Ke, WANG Zong-ling, LI Da-cheng. Nitrogen and phosphorus nutrition physiology of Enteromorpha linza and Bryopsis plumosa[J]. Haiyang Xuebao, 2011, 33(3): 131-139.

SHAO Kui-shuang, GONG Ning, LI Ke, WANG Zong-ling, LI Da-cheng. Nitrogen and phosphorus nutrition physiology of Enteromorpha linza and Bryopsis plumosa[J]. Haiyang Xuebao, 2011, 33(3): 131-139.

Citation:

SHAO Kui-shuang, GONG Ning, LI Ke, WANG Zong-ling, LI Da-cheng. Nitrogen and phosphorus nutrition physiology of Enteromorpha linza and Bryopsis plumosa[J]. Haiyang Xuebao, 2011, 33(3): 131-139.

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Nitrogen and phosphorus nutrition physiology of Enteromorpha linza and Bryopsis plumosa

1.
National Marine Environmental Monitoring Center, Dalian 116023, China
2.
Institute of Environmental System Biology. Dalian Marinetime University, Dalian 116023, China
3.
First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
4.
Liaoning Ocean and Fisheries Science Research Institute, Dalian 116023,China

Received Date: 2009-06-19

Abstract

Abstract

The studies on the uptake and growth kinetics of NO^-₃,NH⁺₄和PO^3-₄N in the clone of Enteromorpha linza and Bryopsis plumosa were conducted. The results suggested that NO^-₃ and PO^3-₄ were taken up in the form of active uptake by the two alga, with NH⁺₄ taken up by passive diffusion. The parameters of V_max and straight slope for E linza were higher than that for B. plumose, which suggested that E. linza could be more favor to high N than B. plumosa. Moreover, the value of a (V_max/K_s) for NO^-₃and NH⁺₄ in E. linza was obviously higher than that in B. plumosa, which showed that E. linza could have more approachability to low N than B. plumosa. As for the uptaken of PO^3-₄, E. linza may have higher P uptake capacities at high P and lower approachability to low P than B. plumosa due to the higher V_max and lower a than B. plumosa. NO^-₃ is the most favorite N form to meet the growth for both species, while NH⁺₄ is more object to increase the accumulation of chlorophyll than NO^-₃. In addition, B. plumosa exhibited higher growth rate than E. linza under same N condition.
- Enteromorpha linza,
- Bryopsis plumose,
- NO₃^-,
- NH₄⁺,
- PO₄^3-,
- uptake kinetics,
- growth kinetics

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References(31)

References

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