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  • Alkalinity, Gran titration (Gran, 1950); Alkalinity, total; Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Calcification/Dissolution; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Calculated using SYSTAT; Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cnidaria; DATE/TIME; Determined using a high-resolution spectrometry system consisting of four coaxia; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; Experimental treatment; Experiment day; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Gross calcification rate of calcium carbonate; Laboratory experiment; Measured after Tambutté et al. (1995); Other metabolic rates; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH meter (Metrohm, 826 pH mobile); Salinity; Single species; Stylophora pistillata; Temperature, water; Zinc-65, inc uptake kinetics  (1)
  • Chromatography, High Pressure Liquid  (1)
  • Nature Publishing Group (NPG)  (1)
  • PANGAEA  (1)
  • American Chemical Society (ACS)
  • 2010-2014  (2)
Document type
Keywords
Publisher
  • Nature Publishing Group (NPG)  (1)
  • PANGAEA  (1)
  • American Chemical Society (ACS)
Years
  • 2010-2014  (2)
Year
  • 1
    Publication Date: 2024-03-15
    Description: Many studies have investigated the effect of an increase in pCO2 on coral calcification and photosynthesis but the physiological consequences are still relatively speculative. We investigated the effects of ocean acidification on zinc incorporation and gross calcification in the scleractinian coral Stylophora pistillata. Zn is an essential element for health and growth of corals. Colonies were maintained at normal pHT (8.1) and at two low-pH conditions (7.8 and 7.5) during 5 weeks. Corals were exposed to 65Zn dissolved in seawater to assess uptake rates of this element. After 5 weeks, 65Zn activity measured in the whole coral and in the two compartments: tissue and skeleton, differed significantly between pH conditions with concentration factors higher at pHT 8.1, compared to lower pH. Zn is therefore taken less efficiently by corals at reduced pH. Their gross calcification, as measured by 45Ca incorporation, photosynthesis and photosynthetic efficiency did not change with pH even at the lowest level.
    Keywords: Alkalinity, Gran titration (Gran, 1950); Alkalinity, total; Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Calcification/Dissolution; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Calculated using SYSTAT; Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cnidaria; DATE/TIME; Determined using a high-resolution spectrometry system consisting of four coaxia; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; Experimental treatment; Experiment day; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Gross calcification rate of calcium carbonate; Laboratory experiment; Measured after Tambutté et al. (1995); Other metabolic rates; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH meter (Metrohm, 826 pH mobile); Salinity; Single species; Stylophora pistillata; Temperature, water; Zinc-65, inc uptake kinetics
    Type: Dataset
    Format: text/tab-separated-values, 3219 data points
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  • 2
    Publication Date: 2011-01-07
    Description: Arbuscular mycorrhiza (AM) is a root endosymbiosis between plants and glomeromycete fungi. It is the most widespread terrestrial plant symbiosis, improving plant uptake of water and mineral nutrients. Yet, despite its crucial role in land ecosystems, molecular mechanisms leading to its formation are just beginning to be unravelled. Recent evidence suggests that AM fungi produce diffusible symbiotic signals. Here we show that Glomus intraradices secretes symbiotic signals that are a mixture of sulphated and non-sulphated simple lipochitooligosaccharides (LCOs), which stimulate formation of AM in plant species of diverse families (Fabaceae, Asteraceae and Umbelliferae). In the legume Medicago truncatula these signals stimulate root growth and branching by the symbiotic DMI signalling pathway. These findings provide a better understanding of the evolution of signalling mechanisms involved in plant root endosymbioses and will greatly facilitate their molecular dissection. They also open the way to using these natural and very active molecules in agriculture.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maillet, Fabienne -- Poinsot, Verena -- Andre, Olivier -- Puech-Pages, Virginie -- Haouy, Alexandra -- Gueunier, Monique -- Cromer, Laurence -- Giraudet, Delphine -- Formey, Damien -- Niebel, Andreas -- Martinez, Eduardo Andres -- Driguez, Hugues -- Becard, Guillaume -- Denarie, Jean -- England -- Nature. 2011 Jan 6;469(7328):58-63. doi: 10.1038/nature09622.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire des Interactions Plantes-Microorganismes, UMR 441/2594 INRA-CNRS, B.P. 52627, F-31326 Castanet-Tolosan CEDEX, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21209659" target="_blank"〉PubMed〈/a〉
    Keywords: Carbohydrate Sequence ; Chromatography, High Pressure Liquid ; Daucus carota/chemistry/metabolism/microbiology ; Glomeromycota/metabolism ; Lipopolysaccharides/chemistry/*metabolism ; Medicago truncatula/chemistry/growth & development/metabolism/microbiology ; Molecular Sequence Data ; Mycorrhizae/*metabolism ; Plant Extracts/chemistry/metabolism ; Plant Roots/chemistry/growth & development/*metabolism/*microbiology ; Signal Transduction ; Spores, Fungal/chemistry/metabolism ; *Symbiosis
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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