Concept

Fixation biologique du diazote

Publications associées (148)

Impacts by dams: From water quality modelling to management optimization

Dams are prone to causing negative effects on downstream ecosystems by their potential to alter riverine water quality. In the case of Itezhi-Tezhi Reservoir (Zambia), a nutrient-poor wetland located downstream is affected by low oxygen concentrations owin ...

Crc Press-Taylor & Francis Group2014

Nitrogen limitation and microbial diversity at the treeline

Alexandre Buttler, Julien Roy, Aurélie Thébault

Tree growth limitation at treeline has mainly been studied in terms of carbon limitation while effects and mechanisms of potential nitrogen (N) limitation are barely known, especially in the southern hemisphere. We investigated how soil abiotic properties ...

Nordic Ecological Society2014

TaSiN nanocomposite thin films: Correlation between structure, chemical composition, and physical properties

Rosendo Sanjines, David Oezer

The structural and electronic properties of fcc-TaN/SiNx nanocomposite thin films deposited by reactive magnetron sputtering have been investigated as function of the N and Si contents. Our studies have been mainly focused on three different types of nanoc ...

Elsevier Science Sa2014

Semiautomated correlative 3D electron microscopy of in vivo-imaged axons and dendrites

Marco Cantoni, Graham Knott, Bohumil Maco

This protocol describes how in vivo-imaged dendrites and axons in adult mouse brains can subsequently be prepared and imaged with focused ion beam scanning electron microscopy (FIBSESEM). The procedure starts after in vivo imaging with chemical fixation, f ...

Nature Publishing Group2014

The effect of abrupt climatic warming on biogeochemical cycling and N2O emissions in a terrestrial ecosystem

Jed Oliver Kaplan, Mirjam Pfeiffer

The large, rapid increase in atmospheric N2O concentrations that occurred concurrent with the abrupt warming at the end of the Last Glacial period might have been the result of a reorganization in global biogeochemical cycles. To explore the sensitivity of ...

Elsevier Science Bv2013

Highly Dynamic Cellular-Level Response of Symbiotic Coral to a Sudden Increase in Environmental Nitrogen

Anders Meibom, Duncan Thomas Lindsay Alexander, Isabelle Domart-Coulon, Christophe Kopp

Metabolic interactions with endosymbiotic photosynthetic dinoflagellate Symbiodinium spp. are fundamental to reef-building corals (Scleractinia) thriving in nutrient-poor tropical seas. Yet, detailed understanding at the single-cell level of nutrient assim ...

American Society for Microbiology2013

The Response of the Mediterranean Gorgonian Eunicella singularis to Thermal Stress Is Independent of Its Nutritional Regime

Alexandre Buttler, Leïla Ezzat

Over the last few decades, sessile benthic organisms from the Mediterranean Sea have suffered from the global warming of the world's oceans, and several mass mortality events were observed during warm summers. It has been hypothesized that mortality could ...

Public Library Science2013

Ammonia exposure promotes algal biomass in an ombrotrophic peatland

Vincent Eric Jules Jassey

Nitrogen pollution affects many peatlands with consequences for their biodiversity and ecosystem function. Microorganisms control nutrient cycling and constitute most of the biodiversity of peatlands but their response to nitrogen is poorly characterised a ...

Pergamon-Elsevier Science Ltd2013

Arene ruthenium dichloro complexes containing isonicotinic ester ligands: Synthesis, molecular structure and cytotoxicity

Paul Joseph Dyson, Olivier Pierre Zava

A series of p-cymene ruthenium dichloro complexes containing isonicotinic ester ligands, [(arene) RuCl2NC5H4-4-COO-C6H4-p-O-(CH2)(n)-CH3] (n = 1: 1, n = 3: 2, n = 5: 3, n = 7:4, n = 9: 5, n = 11: 6, n = 13: 7, n = 15: 8), were prepared from p-cymene ruthen ...

Elsevier2013

Subordinate plant species impact on soil microbial communities and ecosystem functioning in grasslands: Findings from a removal experiment

Alexandre Buttler, Pierre Rossi, Pierre Rémi Mariotte, Charlotte Vandenberghe, Richard David Bardgett, Claire Meugnier

Despite their low relative abundance, subordinate plant species may have larger impacts on ecosystem functioning than expected, but their role in plant communities remains poorly understood. The aim of this study was to test how subordinate plant species i ...

Elsevier Gmbh, Urban & Fischer Verlag2013

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