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  • Alkalinity, total; Alkalinity anomaly technique (Smith and Key, 1975); Animalia; Aragonite saturation state; BCA assay, Intact protein analyses (Smith et al., 1985); Benthic animals; Benthos; Bicarbonate ion; Buoyant weighing technique according to Davies (1989); Calcification/Dissolution; Calcification rate of calcium carbonate; Calcite saturation state; Calculated; Calculated after Jeffrey & Humphrey (1975); Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chlorophyll a+c2; Cladocora caespitosa; Cnidaria; Coast and continental shelf; Containers and aquaria (20-1000 L or 〈 1 m**2); DATE/TIME; EPOCA; European Project on Ocean Acidification; Experimental treatment; Gross photosynthesis; Identification; Laboratory experiment; Measured; Mediterranean Sea; Metrohm 665 Dosimat titrator; Microscopy; Net photosynthesis rate; OA-ICC; Ocean Acidification International Coordination Centre; Other studied parameter or process; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH meter (Metrohm, 826 pH mobile); Photosynthetic efficiencies; Primary production/Photosynthesis; Proteins; Pulse Amplitude Modulated fluorometer (Diving-PAM, Walz); Respiration; Respiration, oxygen; Salinity; Sample ID; Single species; Strathkelvin oxygen electrode system; Temperate; Temperature; Temperature, water; Zooxanthellae  (1)
  • Chromatography, High Pressure Liquid  (1)
  • Nature Publishing Group (NPG)  (1)
  • PANGAEA  (1)
  • American Chemical Society (ACS)
  • Inter Research
  • 2010-2014  (2)
Document type
Keywords
Publisher
  • Nature Publishing Group (NPG)  (1)
  • PANGAEA  (1)
  • American Chemical Society (ACS)
  • Inter Research
Years
  • 2010-2014  (2)
Year
  • 1
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    Unknown
    Seawater carbonate chemistry and biological processes during experiments with temperate coral Cladocora caespitosa, 2010 (2010)
    PANGAEA
    Details
    Publication Date: 2024-03-15
    Description: Atmospheric CO2 partial pressure (pCO2) is expected to increase to 700 µatm or more by the end of the present century. Anthropogenic CO2 is absorbed by the oceans, leading to decreases in pH and the CaCO3 saturation state of the seawater. Elevated pCO2 was shown to drastically decrease calcification rates in tropical zooxanthellate corals. Here we show, using the Mediterranean zooxanthellate coral Cladocora caespitosa, that an increase in pCO2, in the range predicted for 2100, does not reduce its calcification rate. Therefore, the conventional belief that calcification rates will be affected by ocean acidification may not be widespread in temperate corals. Seasonal change in temperature is the predominant factor controlling photosynthesis, respiration, calcification and symbiont density. An increase in pCO2, alone or in combination with elevated temperature, had no significant effect on photosynthesis, photosynthetic efficiency and calcification. The lack of sensitivity C. caespitosa to elevated pCO2 might be due to its slow growth rates, which seem to be more dependent on temperature than on the saturation state of calcium carbonate in the range projected for the end of the century.
    Keywords: Alkalinity, total; Alkalinity anomaly technique (Smith and Key, 1975); Animalia; Aragonite saturation state; BCA assay, Intact protein analyses (Smith et al., 1985); Benthic animals; Benthos; Bicarbonate ion; Buoyant weighing technique according to Davies (1989); Calcification/Dissolution; Calcification rate of calcium carbonate; Calcite saturation state; Calculated; Calculated after Jeffrey & Humphrey (1975); Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chlorophyll a+c2; Cladocora caespitosa; Cnidaria; Coast and continental shelf; Containers and aquaria (20-1000 L or 〈 1 m**2); DATE/TIME; EPOCA; European Project on Ocean Acidification; Experimental treatment; Gross photosynthesis; Identification; Laboratory experiment; Measured; Mediterranean Sea; Metrohm 665 Dosimat titrator; Microscopy; Net photosynthesis rate; OA-ICC; Ocean Acidification International Coordination Centre; Other studied parameter or process; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH meter (Metrohm, 826 pH mobile); Photosynthetic efficiencies; Primary production/Photosynthesis; Proteins; Pulse Amplitude Modulated fluorometer (Diving-PAM, Walz); Respiration; Respiration, oxygen; Salinity; Sample ID; Single species; Strathkelvin oxygen electrode system; Temperate; Temperature; Temperature, water; Zooxanthellae
    Type: Dataset
    Format: text/tab-separated-values, 12601 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Fungal lipochitooligosaccharide symbiotic signals in arbuscular mycorrhiza (2011)
    Nature Publishing Group (NPG)
    Details
    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
    Published by Nature Publishing Group (NPG)
    Location Call Number Limitation Availability
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    PAPER CURRENT
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