DOI: 10.1016/j.marpolbul.2017.10.024
Scopus记录号: 2-s2.0-85032614898
论文题名: Can pesticides, copper and seasonal water temperature explain the seagrass Zostera noltei decline in the Arcachon bay?
作者: Gamain P. ; Feurtet-Mazel A. ; Maury-Brachet R. ; Auby I. ; Pierron F. ; Belles A. ; Budzinski H. ; Daffe G. ; Gonzalez P.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
语种: 英语
英文关键词: Arcachon Bay
; Cellular impacts
; Copper
; Pesticides
; Zostera noltei
Scopus关键词: Biochemistry
; Copper
; Gene expression
; Genes
; Temperature
; Arcachon Bay
; Cellular impacts
; Differential gene expressions
; Growth inhibition
; Mitochondrial activity
; Seawater microcosm
; Water temperatures
; Zostera
; Pesticides
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Dwarf eelgrasses (Zostera noltei) populations have decreased since 2005 in Arcachon Bay (southwest France). Various stressors have been pointed out, however the role of xenobiotics like pesticides or copper (Cu) and of parameters like water temperature warming have not yet been explored. To determine their impact, Z. noltei individuals were collected in a pollution-free site and transferred to the laboratory in seawater microcosms. This dwarf eelgrass was exposed to a pesticide cocktail and copper, alone or simultaneously, at temperatures (10. °C, 20. °C, 28. °C) representative of different seasons. After a two-week contamination, leaf growth, leaf bioaccumulation of Cu, and differential expression of target genes were studied. Eelgrasses bioaccumulated Cu regardless of the temperature, with reduced efficiency in the presence of the Cu and pesticide cocktail at the two higher temperatures. High temperature also exacerbated the effect of contaminants, leading to growth inhibition and differential gene expression. Mitochondrial activity was strongly impacted and higher mortality rates occurred. Experimental results have been confirmed during field survey. This is the first report on the impacts on Z. noltei of pesticides and Cu associate to temperature. © 2017 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88136
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: Univ. Bordeaux, UMR EPOC CNRS 5805, Aquatic ecotoxicology team, 33120 Arcachon, France; Univ. Bordeaux, UMR EPOC CNRS 5805, LPTC team, 33615 Pessac, France; IFREMER Arcachon, Laboratoire Environnement Ressources, Quai du Cdt Silhouette, 33120 Arcachon, France
Recommended Citation:
Gamain P.,Feurtet-Mazel A.,Maury-Brachet R.,et al. Can pesticides, copper and seasonal water temperature explain the seagrass Zostera noltei decline in the Arcachon bay?[J]. Marine Pollution Bulletin,2017-01-01