DOI: 10.1016/j.marpolbul.2017.07.038
Scopus记录号: 2-s2.0-85028047824
论文题名: Response of photosynthesis and the antioxidant defense system of two microalgal species (Alexandrium minutum and Dunaliella salina) to the toxicity of BDE-47
作者: Zhao Y. ; Wang Y. ; Li Y. ; Santschi P.H. ; Quigg A.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 124, 期: 1 起始页码: 459
结束页码: 469
语种: 英语
英文关键词: Alexandrium minutum
; Antioxidant systems
; Dunaliella salina
; PBDEs
; Photosynthesis
; ROS
Scopus关键词: Antioxidants
; Aquatic ecosystems
; Enzymes
; Oxygen
; Peptides
; Photosynthesis
; Alexandrium minutum
; Antioxidant defense system
; Antioxidant systems
; Cellular reactive oxygen species
; Dunaliella salina
; PBDEs
; Persistent organic pollutant (POP)
; Polybrominated diphenyl ether (PBDEs)
; Organic pollutants
; 2,2',4,4' tetrabromodiphenyl ether
; antioxidant
; catalase
; glutathione peroxidase
; glutathione reductase
; hydrogen peroxide
; reactive oxygen metabolite
; superoxide dismutase
; antioxidant
; dinoflagellate
; enzyme activity
; microalga
; PBDE
; persistent organic pollutant
; photosynthesis
; pollution exposure
; reactive oxygen species
; toxicity
; Alexandrium
; Alexandrium minutum
; Article
; cell structure
; dinoflagellate
; Dunaliella salina
; enzyme activity
; green alga
; growth rate
; hydrogen peroxide scavenging assay
; microalga
; nonhuman
; photosynthesis
; sensitivity analysis
; species difference
; Alexandrium minutum
; Dinophyceae
; Dunaliella salina
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Polybrominated diphenyl ethers (PBDEs), a persistent organic pollutant are ubiquitous in aquatic ecosystems, which are causing serious environmental concerns. In this study, we chose BDE-47 as a representative PBDEs, to investigate its toxic effects on two microalgal species and the response of their antioxidant system. The results indicated Alexandrium minutum (a dinoflagellate) was more sensitive to BDE-47 than Dunaliella salina (a chlorophyte), as determined by growth rates, cellular structure and photosynthetic parameters. Cellular reactive oxygen species (ROS) levels were significantly elevated under the exposure of BDE-47 in both species, corresponding to an increase of superoxide dismutase (SOD), catalase (CAT) and glutathione reductase (GR) activities, while glutathione peroxidase (GPX) activities decreased in D. salina and increased in A. minutum. The different enzymes responses between the two species indicated different mechanisms in their antioxidant system, and we deduced that A. minutum might have a higher efficiency for scavenging H2O2 than D. salina. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87455
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: Department of Marine Ecology, Ocean University of China, Qingdao, China; College of Life Science, Qingdao Agricultural University, Qingdao, China; Department of Marine Biology, Texas A&M University, Galveston, TX, United States; Department of Oceanography, Texas A&M University, College Station, TX, United States; Department of Marine Science, Texas A&M University, Galveston, TX, United States
Recommended Citation:
Zhao Y.,Wang Y.,Li Y.,et al. Response of photosynthesis and the antioxidant defense system of two microalgal species (Alexandrium minutum and Dunaliella salina) to the toxicity of BDE-47[J]. Marine Pollution Bulletin,2017-01-01,124(1)