Temperature Modulates Coccolithophorid Sensitivity of Growth, Photosynthesis and Calcification to Increasing Seawater pCO2
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{"title"=>"Temperature modulates coccolithophorid sensitivity of growth, photosynthesis and calcification to increasing seawater pCO2", "type"=>"journal", "authors"=>[{"first_name"=>"Scarlett", "last_name"=>"Sett", "scopus_author_id"=>"55221937700"}, {"first_name"=>"Lennart T.", "last_name"=>"Bach", "scopus_author_id"=>"55050031600"}, {"first_name"=>"Kai G.", "last_name"=>"Schulz", "scopus_author_id"=>"55458070800"}, {"first_name"=>"Signe", "last_name"=>"Koch-Klavsen", "scopus_author_id"=>"55554401500"}, {"first_name"=>"Mario", "last_name"=>"Lebrato", "scopus_author_id"=>"28167522900"}, {"first_name"=>"Ulf", "last_name"=>"Riebesell", "scopus_author_id"=>"7004763337"}], "year"=>2014, "source"=>"PLoS ONE", "identifiers"=>{"pmid"=>"24505472", "doi"=>"10.1371/journal.pone.0088308", "sgr"=>"84894834310", "isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)", "scopus"=>"2-s2.0-84894834310", "issn"=>"19326203", "pui"=>"372535073"}, "id"=>"4af5a0e3-c07b-3200-ad39-a535df0967fb", "abstract"=>"<p>Increasing atmospheric CO<sub>2</sub> concentrations are expected to impact pelagic ecosystem functioning in the near future by driving ocean warming and acidification. While numerous studies have investigated impacts of rising temperature and seawater acidification on planktonic organisms separately, little is presently known on their combined effects. To test for possible synergistic effects we exposed two coccolithophore species, <italic>Emiliania huxleyi</italic> and <italic>Gephyrocapsa oceanica</italic>, to a CO<sub>2</sub> gradient ranging from ∼0.5–250 µmol kg<sup>−1</sup> (i.e. ∼20–6000 µatm <italic>p</italic>CO<sub>2</sub>) at three different temperatures (i.e. 10, 15, 20°C for <italic>E. huxleyi</italic> and 15, 20, 25°C for <italic>G. oceanica</italic>). Both species showed CO<sub>2</sub>-dependent optimum-curve responses for growth, photosynthesis and calcification rates at all temperatures. Increased temperature generally enhanced growth and production rates and modified sensitivities of metabolic processes to increasing CO<sub>2</sub>. CO<sub>2</sub> optimum concentrations for growth, calcification, and organic carbon fixation rates were only marginally influenced from low to intermediate temperatures. However, there was a clear optimum shift towards higher CO<sub>2</sub> concentrations from intermediate to high temperatures in both species. Our results demonstrate that the CO<sub>2</sub> concentration where optimum growth, calcification and carbon fixation rates occur is modulated by temperature. Thus, the response of a coccolithophore strain to ocean acidification at a given temperature can be negative, neutral or positive depending on that strain's temperature optimum. This emphasizes that the cellular responses of coccolithophores to ocean acidification can only be judged accurately when interpreted in the proper eco-physiological context of a given strain or species. Addressing the synergistic effects of changing carbonate chemistry and temperature is an essential step when assessing the success of coccolithophores in the future ocean.</p>", "link"=>"http://www.mendeley.com/research/temperature-modulates-coccolithophorid-sensitivity-growth-photosynthesis-calcification-increasing-se", "reader_count"=>83, "reader_count_by_academic_status"=>{"Unspecified"=>2, "Professor > Associate Professor"=>3, "Researcher"=>22, "Student > Doctoral Student"=>5, "Student > Ph. D. Student"=>24, "Student > Postgraduate"=>3, "Other"=>4, "Student > Master"=>13, "Student > Bachelor"=>4, "Lecturer"=>1, "Professor"=>2}, "reader_count_by_user_role"=>{"Unspecified"=>2, "Professor > Associate Professor"=>3, "Researcher"=>22, "Student > Doctoral Student"=>5, "Student > Ph. D. Student"=>24, "Student > Postgraduate"=>3, "Other"=>4, "Student > Master"=>13, "Student > Bachelor"=>4, "Lecturer"=>1, "Professor"=>2}, "reader_count_by_subject_area"=>{"Unspecified"=>4, "Environmental Science"=>22, "Agricultural and Biological Sciences"=>31, "Chemistry"=>1, "Earth and Planetary Sciences"=>24, "Economics, Econometrics and Finance"=>1}, "reader_count_by_subdiscipline"=>{"Chemistry"=>{"Chemistry"=>1}, "Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>24}, "Economics, Econometrics and Finance"=>{"Economics, Econometrics and Finance"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>31}, "Unspecified"=>{"Unspecified"=>4}, "Environmental Science"=>{"Environmental Science"=>22}}, "reader_count_by_country"=>{"Canada"=>1, "Netherlands"=>2, "Italy"=>1, "United Kingdom"=>2, "France"=>1, "Portugal"=>1, "Spain"=>2}, "group_count"=>1}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/1378200"], "description"=>"<p>Response of growth, POC production, calcification rates and PIC:POC to increasing CO<sub>2</sub> and temperature of <i>G. oceanica</i> (left, open symbols) and <i>E. huxleyi</i> (right, closed symbols). Horizontal bars indicate change of CO<sub>2</sub> from beginning to end of experiment. In some cases the changes were small and thus appear absent. Shaded areas represent OA relevant ranges (∼280–1000 µatm <i>p</i>CO<sub>2</sub>). Note that the investigated CO<sub>2</sub> range (x-axis) is only half as broad for experiments with <i>G.oceanica</i> compared to the one of <i>E.huxleyi</i>.</p>", "links"=>[], "tags"=>["Biochemistry", "metabolism", "Biological transport", "Plant biochemistry", "photosynthesis", "ecology", "Ecological environments", "Marine environments", "Biogeochemistry", "biogeography", "Ecophysiology", "Global change ecology", "microbial ecology", "Physiological ecology", "Marine biology", "Coastal ecology"], "article_id"=>927794, "categories"=>["Biological Sciences"], "users"=>["Scarlett Sett", "Lennart T. Bach", "Kai G. Schulz", "Signe Koch-Klavsen", "Mario Lebrato", "Ulf Riebesell"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0088308.g001", "stats"=>{"downloads"=>1, "page_views"=>8, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Physiological_response_of_G_oceanica_and_E_huxleyi_to_increasing_CO_2_and_temperature_/927794", "title"=>"Physiological response of <i>G. oceanica</i> and <i>E. huxleyi</i> to increasing CO<sub>2</sub> and temperature.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-02-05 04:09:06"}
  • {"files"=>["https://ndownloader.figshare.com/files/1378202"], "description"=>"<p>Depending on the growth temperature the rate of calcification can decrease strongly or moderately or even increase with rising CO<sub>2</sub> levels. The “low”, “intermediate” and “high” refers to experimental temperature of 10, 15 and 20°C, respectively. The slope of a tangent at [CO<sub>2</sub>] of 18 µmol kg<sup>−1</sup> in the 10°C treatment of <i>E. huxleyi</i> is almost 0 which means that the optimum curve has reached a plateau in the OA relevant CO<sub>2</sub> range. At 20°C there is a positive slope which means that cells have not yet reached the optimum CO<sub>2</sub> for calcification at 18 µmol kg<sup>−1</sup> in this temperature.</p>", "links"=>[], "tags"=>["Biochemistry", "metabolism", "Biological transport", "Plant biochemistry", "photosynthesis", "ecology", "Ecological environments", "Marine environments", "Biogeochemistry", "biogeography", "Ecophysiology", "Global change ecology", "microbial ecology", "Physiological ecology", "Marine biology", "Coastal ecology", "elevated"], "article_id"=>927796, "categories"=>["Biological Sciences"], "users"=>["Scarlett Sett", "Lennart T. Bach", "Kai G. Schulz", "Signe Koch-Klavsen", "Mario Lebrato", "Ulf Riebesell"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0088308.g002", "stats"=>{"downloads"=>1, "page_views"=>13, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Calcification_rate_of_E_huxleyi_in_response_to_elevated_CO_2_at_different_temperatures_/927796", "title"=>"Calcification rate of <i>E. huxleyi</i> in response to elevated CO<sub>2</sub> at different temperatures.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-02-05 04:09:06"}
  • {"files"=>["https://ndownloader.figshare.com/files/1378203"], "description"=>"<p>The arrows emphasize the trends of key metabolic processes (i.e. calcification, photosynthesis and growth) vs. CO<sub>2</sub> relationship in the range relevant to future ocean acidification.</p>", "links"=>[], "tags"=>["Biochemistry", "metabolism", "Biological transport", "Plant biochemistry", "photosynthesis", "ecology", "Ecological environments", "Marine environments", "Biogeochemistry", "biogeography", "Ecophysiology", "Global change ecology", "microbial ecology", "Physiological ecology", "Marine biology", "Coastal ecology", "graph", "depicting", "modulating", "metabolic", "rates"], "article_id"=>927797, "categories"=>["Biological Sciences"], "users"=>["Scarlett Sett", "Lennart T. Bach", "Kai G. Schulz", "Signe Koch-Klavsen", "Mario Lebrato", "Ulf Riebesell"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0088308.g003", "stats"=>{"downloads"=>0, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Conceptual_graph_depicting_the_modulating_effect_of_temperature_on_the_CO_2_pH_sensitivity_of_key_metabolic_rates_in_coccolithophores_/927797", "title"=>"Conceptual graph depicting the modulating effect of temperature on the CO<sub>2</sub>/pH sensitivity of key metabolic rates in coccolithophores.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-02-05 04:09:06"}
  • {"files"=>["https://ndownloader.figshare.com/files/1378204"], "description"=>"<p>Parameters from fit <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0088308#pone.0088308.e004\" target=\"_blank\">equation (4</a>) for <i>G. oceanica</i>.</p>", "links"=>[], "tags"=>["Biochemistry", "metabolism", "Biological transport", "Plant biochemistry", "photosynthesis", "ecology", "Ecological environments", "Marine environments", "Biogeochemistry", "biogeography", "Ecophysiology", "Global change ecology", "microbial ecology", "Physiological ecology", "Marine biology", "Coastal ecology"], "article_id"=>927799, "categories"=>["Biological Sciences"], "users"=>["Scarlett Sett", "Lennart T. Bach", "Kai G. Schulz", "Signe Koch-Klavsen", "Mario Lebrato", "Ulf Riebesell"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0088308.t001", "stats"=>{"downloads"=>1, "page_views"=>15, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Parameters_from_fit_equation_4_for_G_oceanica_/927799", "title"=>"Parameters from fit equation (4) for <i>G. oceanica</i>.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-02-05 04:09:06"}
  • {"files"=>["https://ndownloader.figshare.com/files/1378206"], "description"=>"<p>Parameters from fit <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0088308#pone.0088308.e004\" target=\"_blank\">equation (4</a>) for <i>E. huxleyi</i>.</p>", "links"=>[], "tags"=>["Biochemistry", "metabolism", "Biological transport", "Plant biochemistry", "photosynthesis", "ecology", "Ecological environments", "Marine environments", "Biogeochemistry", "biogeography", "Ecophysiology", "Global change ecology", "microbial ecology", "Physiological ecology", "Marine biology", "Coastal ecology"], "article_id"=>927800, "categories"=>["Biological Sciences"], "users"=>["Scarlett Sett", "Lennart T. Bach", "Kai G. Schulz", "Signe Koch-Klavsen", "Mario Lebrato", "Ulf Riebesell"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0088308.t002", "stats"=>{"downloads"=>1, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Parameters_from_fit_equation_4_for_E_huxleyi_/927800", "title"=>"Parameters from fit equation (4) for <i>E. huxleyi</i>.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-02-05 04:09:06"}
  • {"files"=>["https://ndownloader.figshare.com/files/1378207", "https://ndownloader.figshare.com/files/1378208"], "description"=>"<div><p>Increasing atmospheric CO<sub>2</sub> concentrations are expected to impact pelagic ecosystem functioning in the near future by driving ocean warming and acidification. While numerous studies have investigated impacts of rising temperature and seawater acidification on planktonic organisms separately, little is presently known on their combined effects. To test for possible synergistic effects we exposed two coccolithophore species, <i>Emiliania huxleyi</i> and <i>Gephyrocapsa oceanica</i>, to a CO<sub>2</sub> gradient ranging from ∼0.5–250 µmol kg<sup>−1</sup> (i.e. ∼20–6000 µatm <i>p</i>CO<sub>2</sub>) at three different temperatures (i.e. 10, 15, 20°C for <i>E. huxleyi</i> and 15, 20, 25°C for <i>G. oceanica</i>). Both species showed CO<sub>2</sub>-dependent optimum-curve responses for growth, photosynthesis and calcification rates at all temperatures. Increased temperature generally enhanced growth and production rates and modified sensitivities of metabolic processes to increasing CO<sub>2</sub>. CO<sub>2</sub> optimum concentrations for growth, calcification, and organic carbon fixation rates were only marginally influenced from low to intermediate temperatures. However, there was a clear optimum shift towards higher CO<sub>2</sub> concentrations from intermediate to high temperatures in both species. Our results demonstrate that the CO<sub>2</sub> concentration where optimum growth, calcification and carbon fixation rates occur is modulated by temperature. Thus, the response of a coccolithophore strain to ocean acidification at a given temperature can be negative, neutral or positive depending on that strain's temperature optimum. This emphasizes that the cellular responses of coccolithophores to ocean acidification can only be judged accurately when interpreted in the proper eco-physiological context of a given strain or species. Addressing the synergistic effects of changing carbonate chemistry and temperature is an essential step when assessing the success of coccolithophores in the future ocean.</p></div>", "links"=>[], "tags"=>["Biochemistry", "metabolism", "Biological transport", "Plant biochemistry", "photosynthesis", "ecology", "Ecological environments", "Marine environments", "Biogeochemistry", "biogeography", "Ecophysiology", "Global change ecology", "microbial ecology", "Physiological ecology", "Marine biology", "Coastal ecology", "modulates", "coccolithophorid", "calcification", "seawater"], "article_id"=>927801, "categories"=>["Biological Sciences"], "users"=>["Scarlett Sett", "Lennart T. Bach", "Kai G. Schulz", "Signe Koch-Klavsen", "Mario Lebrato", "Ulf Riebesell"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0088308.s001", "https://dx.doi.org/10.1371/journal.pone.0088308.s002"], "stats"=>{"downloads"=>3, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Temperature_Modulates_Coccolithophorid_Sensitivity_of_Growth_Photosynthesis_and_Calcification_to_Increasing_Seawater_p_CO_2_/927801", "title"=>"Temperature Modulates Coccolithophorid Sensitivity of Growth, Photosynthesis and Calcification to Increasing Seawater <i>p</i>CO<sub>2</sub>", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2014-02-05 04:09:06"}

PMC Usage Stats | Further Information

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Relative Metric

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