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Increased activity of lysozyme and complement system in Atlantic halibut exposed to elevated CO2 at six different temperatures.

Artikel i vetenskaplig tidskrift
Författare Karine Bresolin de Souza
Noomi Asker
Elisabeth Jönsson
Lars Förlin
Joachim Sturve
Publicerad i Marine environmental research
Volym 122
Sidor 143-147
ISSN 1879-0291
Publiceringsår 2016
Publicerad vid Institutionen för biologi och miljövetenskap
Sidor 143-147
Språk en
Länkar dx.doi.org/10.1016/j.marenvres.2016...
www.ncbi.nlm.nih.gov/entrez/query.f...
Ämneskategorier Biologiska vetenskaper

Sammanfattning

Ocean acidification and rising seawater temperature are environmental stressors resulting from the continuous increase of the atmospheric CO2 concentration due to anthropogenic activities. As a consequence, marine fish are expected to undergo conditions outside of their tolerance range, leading to physiological challenges with possible detrimental implications. Our research group has previously shown that exposure to elevated CO2 modulated the immune system of the Atlantic halibut. To further investigate this finding, we analysed non-specific immune components in blood plasma of Atlantic halibut (Hippoglossus hippoglossus) juveniles acclimated to six different temperatures (5, 10, 12, 14, 16 and 18 °C), and to water pH of 8.0 (control) or 7.6 (predicted for year 2100) for three months. Plasma ions (K(+), Na(+), Ca(++), Cl(-)) and lactate concentrations were also measured. The analysis of plasma ions did not show any trends related to temperature or CO2 exposure, and the majority of the experimental fish were able to maintain ionic balance. The results show that both innate immune components (lysozyme and alternative complement system) had increased activities in response to elevated CO2, representing a CO2-related impact on the halibut's immune system. The increased activity of lysozyme and complement system is possibly part of the acclimatization process, and might be protective.

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Denna text är utskriven från följande webbsida:
http://www.gu.se/forskning/publikation/?publicationId=245690
Utskriftsdatum: 2019-09-17