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Thermal stress resistance of the brown alga Fucus serratus along the North-Atlantic coast: acclimatization potential to climate change.
Mar Genomics. 2014 Feb; 13:27-36.MG

Abstract

Seaweed-dominated communities are predicted to disappear south of 45° latitude on North-Atlantic rocky shores by 2200 because of climate change. The extent of predicted habitat loss, however, could be mitigated if the seaweeds' physiology is sufficiently plastic to rapidly acclimatize to the warmer temperatures. The main objectives of this study were to identify whether the thermal tolerance of the canopy-forming seaweed Fucus serratus is population-specific and where temperatures are likely to exceed its tolerance limits in the next 200 years. We measured the stress response of seaweed samples from four populations (Norway, Denmark, Brittany and Spain) to common-garden heat stress (20 °C-36 °C) in both photosynthetic performance and transcriptomic upregulation of heat shock protein genes. The two stress indicators did not correlate and likely measured different cellular components of the stress response, but both indicators revealed population-specific differences, suggesting ecotypic differentiation. Our results confirmed that thermal extremes will regularly reach physiologically stressful levels in Brittany (France) and further south by the end of the 22nd century. Although heat stress resilience in photosynthetic performance was higher at the species' southern distributional edge in Spain, the hsp expression pattern suggested that this edge-population experienced reduced fitness and limited responsiveness to further stressors. Thus, F. serratus may be unable to mitigate its predicted northward shift and may be at high risk to lose its center of genetic diversity and adaptability in Brittany (France). As it is an important intertidal key species, the disappearance of this seaweed will likely trigger major ecological changes in the entire associated ecosystem.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Jueterbock A
Faculty of Biosciences and Aquaculture, University of Nordland, 8049 Bodø, Norway. Electronic address: Alexander-Jueterbock@web.de.
Kollias S
Faculty of Biosciences and Aquaculture, University of Nordland, 8049 Bodø, Norway.
Smolina I
Faculty of Biosciences and Aquaculture, University of Nordland, 8049 Bodø, Norway.
Fernandes JM
Faculty of Biosciences and Aquaculture, University of Nordland, 8049 Bodø, Norway.
Coyer JA
Shoals Marine Laboratory, Cornell University, Portsmouth, NH 03801, USA.
Olsen JL
Marine Benthic Ecology and Evolution Group, Centre for Ecological and Evolutionary Studies, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands.
Hoarau G
Faculty of Biosciences and Aquaculture, University of Nordland, 8049 Bodø, Norway.

MeSH

AcclimatizationAnalysis of VarianceAtlantic OceanClimate ChangeDNA PrimersEuropeFucusHeat-Shock ProteinsHot TemperaturePhotosynthesisPhylogeographyReal-Time Polymerase Chain ReactionSpecies SpecificityStress, Physiological

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24393606

Citation

Jueterbock, Alexander, et al. "Thermal Stress Resistance of the Brown Alga Fucus Serratus Along the North-Atlantic Coast: Acclimatization Potential to Climate Change." Marine Genomics, vol. 13, 2014, pp. 27-36.
Jueterbock A, Kollias S, Smolina I, et al. Thermal stress resistance of the brown alga Fucus serratus along the North-Atlantic coast: acclimatization potential to climate change. Mar Genomics. 2014;13:27-36.
Jueterbock, A., Kollias, S., Smolina, I., Fernandes, J. M., Coyer, J. A., Olsen, J. L., & Hoarau, G. (2014). Thermal stress resistance of the brown alga Fucus serratus along the North-Atlantic coast: acclimatization potential to climate change. Marine Genomics, 13, 27-36. https://doi.org/10.1016/j.margen.2013.12.008
Jueterbock A, et al. Thermal Stress Resistance of the Brown Alga Fucus Serratus Along the North-Atlantic Coast: Acclimatization Potential to Climate Change. Mar Genomics. 2014;13:27-36. PubMed PMID: 24393606.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Thermal stress resistance of the brown alga Fucus serratus along the North-Atlantic coast: acclimatization potential to climate change. AU - Jueterbock,Alexander, AU - Kollias,Spyros, AU - Smolina,Irina, AU - Fernandes,Jorge M O, AU - Coyer,James A, AU - Olsen,Jeanine L, AU - Hoarau,Galice, Y1 - 2014/01/03/ PY - 2013/08/31/received PY - 2013/11/25/revised PY - 2013/12/21/accepted PY - 2014/1/8/entrez PY - 2014/1/8/pubmed PY - 2014/10/15/medline KW - Global warming KW - Heat shock protein KW - Heat stress KW - Macroalgae KW - Photosynthetic performance SP - 27 EP - 36 JF - Marine genomics JO - Mar Genomics VL - 13 N2 - Seaweed-dominated communities are predicted to disappear south of 45° latitude on North-Atlantic rocky shores by 2200 because of climate change. The extent of predicted habitat loss, however, could be mitigated if the seaweeds' physiology is sufficiently plastic to rapidly acclimatize to the warmer temperatures. The main objectives of this study were to identify whether the thermal tolerance of the canopy-forming seaweed Fucus serratus is population-specific and where temperatures are likely to exceed its tolerance limits in the next 200 years. We measured the stress response of seaweed samples from four populations (Norway, Denmark, Brittany and Spain) to common-garden heat stress (20 °C-36 °C) in both photosynthetic performance and transcriptomic upregulation of heat shock protein genes. The two stress indicators did not correlate and likely measured different cellular components of the stress response, but both indicators revealed population-specific differences, suggesting ecotypic differentiation. Our results confirmed that thermal extremes will regularly reach physiologically stressful levels in Brittany (France) and further south by the end of the 22nd century. Although heat stress resilience in photosynthetic performance was higher at the species' southern distributional edge in Spain, the hsp expression pattern suggested that this edge-population experienced reduced fitness and limited responsiveness to further stressors. Thus, F. serratus may be unable to mitigate its predicted northward shift and may be at high risk to lose its center of genetic diversity and adaptability in Brittany (France). As it is an important intertidal key species, the disappearance of this seaweed will likely trigger major ecological changes in the entire associated ecosystem. SN - 1876-7478 UR - https://www.unboundmedicine.com/medline/citation/24393606/Thermal_stress_resistance_of_the_brown_alga_Fucus_serratus_along_the_North_Atlantic_coast:_acclimatization_potential_to_climate_change_ DB - PRIME DP - Unbound Medicine ER -