DOI: 10.1016/j.marpolbul.2017.06.043
Scopus记录号: 2-s2.0-85026661397
论文题名: Nitric-oxide generation induced by metals plays a role in their accumulation by Phallusia nigra hemocytes
作者: de Barros C.M. ; da Fonte Carvalho Martins D. ; Mello A.D.A. ; Salgado L.T. ; Allodi S.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 124, 期: 1 起始页码: 441
结束页码: 448
语种: 英语
英文关键词: Ascidian
; Energy-dispersive X-ray analysis
; Mg
; Mn
; Pb
; Vanadocytes
Scopus关键词: Biochemistry
; Energy dispersive X ray analysis
; Magnesium
; Manganese
; Metals
; Nitric oxide
; Water quality
; X ray analysis
; Ascidian
; Cell viability
; Different class
; Large volumes
; No productions
; Pb concentration
; Response mechanisms
; Vanadocytes
; Lead
; lead
; magnesium
; manganese
; nitric oxide
; bioaccumulation
; cell organelle
; concentration (composition)
; invertebrate
; lead
; magnesium
; manganese
; nitric oxide
; adult
; animal cell
; Article
; Ascidiacea
; bioaccumulation
; blood cell
; cell viability
; concentration (parameters)
; controlled study
; environmental monitoring
; nonhuman
; Phallusia nigra
; Ascidia
; Ascidia nigra
; Ascidiacea
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Ascidians are good monitors for assessing water quality, since they filter large volumes of water; however, little is known about how xenobiotics, including metals, can affect ascidian hemocytes. Metals can be either toxic or beneficial to health, inducing many different responses. The response mechanism depends on the class of metals to which organisms are exposed: essential, nonessential, and borderline. To analyze the influence of metals from different classes on the protective mechanisms of an ascidian, we investigated the production of nitric oxide (NO) after exposure to various concentrations of Mg, Mn and Pb over different time periods. We also determined the amounts of each metal in the hemocytes. Our results indicated that especially Pb could stimulate NO production. Although Pb induced the highest NO production, cell viability was not severely altered in all Pb concentrations and time periods. Ascidians might serve as biomonitor for Pb, since their vanadocytes accumulate Pb. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87480
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: Laboratório Integrado de Morfologia, Núcleo em Ecologia e Desenvolvimento Sócio Ambiental de Macaé – NUPEM, Universidade Federal do Rio de Janeiro, Campus UFRJ - Macaé, Macaé, RJ, Brazil; Laboratório de Neurobiologia Comparativa e do Desenvolvimento, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro, RJ, Brazil; Instituto de Pesquisas, Jardim Botânico do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Pós-Graduação em Produtos Bioativos e Biociências, Universidade Federal do Rio de Janeiro, Campus UFRJ - Macaé, Macaé, RJ, Brazil
Recommended Citation:
de Barros C.M.,da Fonte Carvalho Martins D.,Mello A.D.A.,et al. Nitric-oxide generation induced by metals plays a role in their accumulation by Phallusia nigra hemocytes[J]. Marine Pollution Bulletin,2017-01-01,124(1)