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Immune suppression of the echinoderm Asterias rubens (L.) following long-term ocean acidification
Kristianstad University, School of Education and Environment. (Biomedicin)
Department of Marine Ecology, University of Gothenburg.
The Royal Swedish Academy of Sciences.
Department of Marine Ecology, University of Gothenburg10.1016/j.aquatox.2011.03.001 .
2011 (English)In: Aquatic Toxicology, ISSN 0166-445X, E-ISSN 1879-1514, Vol. 103, no 3-4, 222-224 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2011. Vol. 103, no 3-4, 222-224 p.
Keyword [en]
Ocean acidification, CO(2), Immunity, Stress indicators, Marine, invertebrates, seawater acidification, hsp70, regeneration, celomocytes
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:hkr:diva-8784DOI: 10.1016/j.aquatox.2011.03.001ISI: 000291908100011PubMedID: 21473849OAI: oai:DiVA.org:hkr-8784DiVA: diva2:462525
Available from: 2011-12-07 Created: 2011-12-06 Last updated: 2012-11-07Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • vancouver
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