Search Results - "Delarue, Frédéric"

Above- and belowground linkages in Sphagnum peatland: climate warming affects plant-microbial interactions by Jassey, Vincent EJ, Chiapusio, Geneviève, Binet, Philippe, Buttler, Alexandre, Laggoun-Défarge, Fatima, Delarue, Frédéric, Bernard, Nadine, Mitchell, Edward AD, Toussaint, Marie-Laure, Francez, André-Jean, Gilbert, Daniel

“…Peatlands contain approximately one third of all soil organic carbon (SOC). Warming can alter above‐ and belowground linkages that regulate soil organic carbon…”
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An unexpected role for mixotrophs in the response of peatland carbon cycling to climate warming by Jassey, Vincent E. J., Signarbieux, Constant, Hättenschwiler, Stephan, Bragazza, Luca, Buttler, Alexandre, Delarue, Frédéric, Fournier, Bertrand, Gilbert, Daniel, Laggoun-Défarge, Fatima, Lara, Enrique, T. E. Mills, Robert, Mitchell, Edward A. D., Payne, Richard J., Robroek, Bjorn J. M.

“…Mixotrophic protists are increasingly recognized for their significant contribution to carbon (C) cycling. As phototrophs they contribute to photosynthetic C…”
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Out of rock: A new look at the morphological and geochemical preservation of microfossils from the 3.46 Gyr-old Strelley Pool Formation by Delarue, Frédéric, Robert, François, Derenne, Sylvie, Tartèse, Romain, Jauvion, Clément, Bernard, Sylvain, Pont, Sylvain, Gonzalez-Cano, Adriana, Duhamel, Rémi, Sugitani, Kenichiro

“…•Filaments, films, spheroids and lenses have been isolated from the SPF chert.•Most of microfossils present low morphological and geochemical preservation…”
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Persistent high temperature and low precipitation reduce peat carbon accumulation by Delarue, Frédéric

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Quantification of biochar in arable land: A new approach based on Rock-Eval® thermal analysis by Aubertin, Marie-Liesse, Malou, Oscar Pascal, Delarue, Frédéric, Oliva, Priscia, Houben, David, Sebag, David

“…•We quantified biochar-C in biochar-soil mixtures from six industrial biochars and four cultivated soils.•PyC was mainly emitted as CO2 between 410 and 610 °C,…”
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Les années 1970 en France au prisme de la médiation littéraire au petit écran by Delarue, Frédéric

“…Bousculée par mai 68, l’émission littéraire télévisée doute d’elle-même : abandonnant le prédicat littéraire sur lequel elle reposait depuis sa création en…”
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Insights into the origin of carbonaceous chondrite organics from their triple oxygen isotope composition by Tartèse, Romain, Chaussidon, Marc, Gurenko, Andrey, Delarue, Frédéric, Robert, François

“…Dust grains of organic matter were the main reservoir of C and N in the forming Solar System and are thus considered to be an essential ingredient for the…”
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Comparison between Rock-Eval® and temperature-programmed pyrolysis/mass spectrometry for the analysis of environmental and geological samples by Jacob, Jérémy, Delarue, Frédéric, Copard, Yoann, Le Milbeau, Claude, Grasset, Laurent, Brockmann, Patrick

“…Natural organic matter (OM) has a complex structure whose complete structural and chemical description remains a challenge. Rock-Eval® device constitutes a…”
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Combining Rock-Eval® thermal analysis and thermochemolysis to evaluate the influence of forest management on soil organic matter quality and stability by Sun, Zheng, Quénéa, Katell, Delarue, Frédéric, Anquetil, Christelle, Ravelojaona, Herman, Sebag, David, Eon, Loic, Kowalewski, Isabelle

“…•Forest management practices can lead to distinct compositions of topsoil OM.•Thermal stability is likely constrained by mineral interactions.•Thermal analysis…”
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Biochemical traits enhance the trait concept in Sphagnum ecology by Sytiuk, Anna, Céréghino, Regis, Hamard, Samuel, Delarue, Frédéric, Dorrepaal, Ellen, Küttim, Martin, Lamentowicz, Mariusz, Pourrut, Bertrand, Robroek, Bjorn J. M., Tuittila, Eeva‐Stiina, Jassey, Vincent E. J.

“…Sphagnum mosses are key to northern peatland carbon sequestration. They have a range of morphological and anatomical characteristics that allow them to cope…”
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Effects of a short-term experimental microclimate warming on the abundance and distribution of branched GDGTs in a French peatland by Huguet, Arnaud, Fosse, Céline, Laggoun-Défarge, Fatima, Delarue, Frédéric, Derenne, Sylvie

“…Branched glycerol dialkyl glycerol tetraethers (GDGTs) are complex lipids of high molecular weight, recently discovered in soils and increasingly used as…”
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Chemical degradation of thermally altered silicified organic matter during acid maceration: A case study from the Lower Devonian Rhynie chert by Delarue, Frédéric, Tu, Thanh Thuy Nguyen, Duhamel, Rémi, Paris, Céline, Baudin, François

“…•Organic matter from the Devonian Rhynie chert was chemically isolated.•Standard acid maceration resulted in a rise in the carbon structural…”
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Predicting the structure and functions of peatland microbial communities from Sphagnum phylogeny, anatomical and morphological traits and metabolites by Sytiuk, Anna, Céréghino, Régis, Hamard, Samuel, Delarue, Frédéric, Guittet, Amélie, Barel, Janna M., Dorrepaal, Ellen, Küttim, Martin, Lamentowicz, Mariusz, Pourrut, Bertrand, Robroek, Bjorn J. M., Tuittila, Eeva‐Stiina, Jassey, Vincent E. J.

“…Sphagnum mosses are keystone species in northern peatlands. Notably, they play an important role in peatland carbon (C) cycling by regulating the composition…”
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The Raman-Derived Carbonization Continuum: A Tool to Select the Best Preserved Molecular Structures in Archean Kerogens by Delarue, Frédéric, Rouzaud, Jean-Noël, Derenne, Sylvie, Bourbin, Mathilde, Westall, Frances, Kremer, Barbara, Sugitani, Kenichiro, Deldicque, Damien, Robert, François

“…The search for indisputable traces of life in Archean cherts is of prime importance. However, their great age and metamorphic history pose constraints on the…”
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Microfossils with tail-like structures in the 3.4 Gyr old Strelley Pool Formation by Delarue, Frédéric, Bernard, Sylvain, Sugitani, Kenichiro, Robert, François, Tartèse, Romain, Albers, Sonja-Verena, Duhamel, Rémi, Pont, Sylvain, Derenne, Sylvie

“…•Microfossils with tail-like appendages were observed in a 3.4 Gyr-old Australian chert.•Their heteroatomic composition is consistent with biological…”
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Experimental warming interacts with soil moisture to discriminate plant responses in an ombrotrophic peatland by Buttler, Alexandre, Robroek, Bjorn J.M, Laggoun‐Défarge, Fatima, Jassey, Vincent E.J, Pochelon, Cédric, Bernard, Gregory, Delarue, Frédéric, Gogo, Sébastien, Mariotte, Pierre, Mitchell, Edward A.D, Bragazza, Luca, Morgan, John

“…QUESTION: A better understanding of the response of Sphagnum mosses and associated vascular plants to climate warming is relevant for predicting the carbon…”
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Can NanoSIMS probe quantitatively the geochemical composition of ancient organic-walled microfossils? A case study from the early Neoproterozoic Liulaobei Formation by Delarue, Frédéric, Robert, François, Tartèse, Romain, Sugitani, Kenichiro, Tang, Qing, Duhamel, Rémi, Pont, Sylvain, Xiao, Shuhai

“…•NanoSIMS was used to probe the geochemical composition of Proterozoic microfossils.•Spheroid acritarchs and filaments have different H…”
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What is the meaning of hydrogen-to-carbon ratio determined in Archean organic matter? by Delarue, Frédéric, Derenne, Sylvie, Sugitani, Kenichiro, Baudin, François, Westall, Frances, Kremer, Barbara, Tartèse, Romain, Gonzalez, Adriana, Robert, François

“…•Archean organic matter can be enriched in H at odds with their thermal history.•H does not solely originate from the thermal cleavage of the kerogen…”
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Food web structure and energy flux dynamics, but not taxonomic richness, influence microbial ecosystem functions in a Sphagnum-dominated peatland by Jassey, Vincent E.J., Petchey, Owen L., Binet, Philippe, Buttler, Alexandre, Chiapusio, Geneviève, Delarue, Frédéric, Laggoun-Défarge, Fatima, Gilbert, Daniel, Mitchell, Edward A.D., Barel, Janna M.

“…Soil microbial communities are vital for multiple ecosystem processes and services. In particular, soil microbial food webs are key determinants of soil…”
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Invasion of a Sphagnum-peatland by Betula spp and Molinia caerulea impacts organic matter biochemistry. Implications for carbon and nutrient cycling by Gogo, Sébastien, Laggoun-Défarge, Fatima, Delarue, Frédéric, Lottier, Nathalie

“…Peatlands act as a sink of carbon (C) through the accumulation of dead remains of plants. Under global changes triggered by human activities, it is not only…”
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