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Immune suppression of the echinoderm Asterias rubens (L.) following long-term ocean acidification

Hernroth, Bodil, 1951- (author)
Gothenburg University,Göteborgs universitet,Högskolan Kristianstad,Sektionen för lärande och miljö,Biomedicin,Institutionen för marin ekologi,Department of Marine Ecology
Baden, Susanne (author)
Department of Marine Ecology, University of Gothenburg
Thorndyke, Mike (author)
The Royal Swedish Academy of Sciences
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Dupont, Sam (author)
Department of Marine Ecology, University of Gothenburg10.1016/j.aquatox.2011.03.001
Dupont, Samuel, 1971 (author)
Gothenburg University,Göteborgs universitet,Institutionen för marin ekologi,Department of Marine Ecology
Baden, Susanne P., 1952 (author)
Gothenburg University,Göteborgs universitet,Institutionen för marin ekologi,Department of Marine Ecology
Thorndyke, Michael C., 1946 (author)
Gothenburg University,Göteborgs universitet,Institutionen för marin ekologi,Department of Marine Ecology
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2011
2011
English.
In: Aquatic Toxicology. - 0166-445X .- 1879-1514. ; 103:3-4, s. 222-224
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • We compared effects of exposure to predict near-future (2100) ocean acidification (OA; pH 7.7) and normal seawater (Control; pH 8.1) on immune and stress responses in the adult sea star Asterias rubens. Analyses were made after one week and after six months of continuous exposure. Following one week exposure to acidified water, the pH of coelomic fluid was significantly reduced. Levels of the chaperon Hsp70 were elevated while key cellular players in immunity, coelomocytes. were reduced by approximately 50%. Following long-term exposure (six months) levels of Hsp70 returned to control values, whereas immunity was further impaired, evidenced by the reduced phagocytic capacity of coelomocytes and inhibited activation of p38 MAP-kinase. Such impacts of reduced seawater pH may have serious consequences for resistance to pathogens in a future acidified ocean.

Subject headings

NATURAL SCIENCES  -- Biological Sciences (hsv//eng)
NATURVETENSKAP  -- Biologiska vetenskaper (hsv//swe)

Keyword

Ocean acidification
CO(2)
Immunity
Stress indicators
Marine
invertebrates
seawater acidification
hsp70
regeneration
celomocytes

Publication and Content Type

ref (subject category)
art (subject category)

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