DOI: 10.1016/j.marpolbul.2016.06.077
Scopus记录号: 2-s2.0-84990976846
论文题名: Comparative bioavailability of ammonium, nitrate, nitrite and urea to typically harmful cyanobacterium Microcystis aeruginosa
作者: Li J. ; Zhang J. ; Huang W. ; Kong F. ; Li Y. ; Xi M. ; Zheng Z.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2016
卷: 110, 期: 1 起始页码: 93
结束页码: 98
语种: 英语
英文关键词: Glutamine synthetase
; Microcystis aeruginosa
; Nitrate reductase
; Nitrite reductase
; Nitrogen utilization
Scopus关键词: ammonium derivative
; fresh water
; nitrite
; urea
; bioavailability
; eutrophication
; metabolism
; Microcystis
; Ammonium Compounds
; Biological Availability
; Eutrophication
; Fresh Water
; Microcystis
; Nitrites
; Urea
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Phosphorus is generally considered as the prime limiting nutrient responsible for cyanobacterial blooms. However, recent research is drawing attention to the importance of bioavailable nitrogen (N) in freshwater eutrophication. This study investigated the bioavailability of NO3 −-N, NO2 −-N, NH4 +-N and Urea-N under different concentrations of 1.2, 3.6 and 6.0 mg L− 1 to Microcystis aeruginosa. Overall, Urea-N ranked the first in promoting M. aeruginosa growth, followed by NO3 −-N and NO2 −-N. However, the algal growth cultured in NH4 +-N was depressed under test N levels. The bioavailability of N to M. aeruginosa was seriously influenced by both N forms and N concentrations (p < 0.01). Total N concentrations in Urea-N treatment decreased the fastest, which were corresponding with the μ values of M. aeruginosa. The high enzymic activities of nitrate reductase, nitrite reductase and glutamine synthetase indicated that the decomposition process for urea is effective, which contributed in N assimilation and utilization in M. aeruginosa cells. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86798
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: College of Environmental Science and Engineering, Qingdao University, Qingdao, China; Department of Environmental Science and Engineering, Fudan University, Shanghai, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China
Recommended Citation:
Li J.,Zhang J.,Huang W.,et al. Comparative bioavailability of ammonium, nitrate, nitrite and urea to typically harmful cyanobacterium Microcystis aeruginosa[J]. Marine Pollution Bulletin,2016-01-01,110(1)