• Article dans une revue

The Role of the Glyoxylate Shunt in the Acclimation to Iron Limitation in Marine Heterotrophic Bacteria

Coco Koedooder, Audrey Gueneugues, Rémy van Geersdaële, Valérie Vergé, François-Yves Bouget, Yannick Labreuche, Ingrid Obernosterer, Stéphane Blain

Iron (Fe) is an essential element for marine microbial growth but is present in trace amounts (<0.1 nM) in surface waters of the ocean. In heterotrophic bacteria, Fe-limitation particularly impacts ATP production as Fe is an essential co-factor of enzymes involved in the electron-transport chain…

Frontiers in Marine Science, 2018, 5, pp.435. ⟨10.3389/fmars.2018.00435⟩. ⟨hal-02046533⟩

• Article dans une revue

Effects of iron limitation on growth and carbon metabolism in oceanic and coastal heterotrophic bacteria

Marion Fourquez, Aurélie Devez, Annick Schaumann, Audrey Gueneugues, Thierry Jouenne, Ingrid Obernosterer, Stéphane Blain

Limnology and Oceanography Bulletin, 2014, 59 (2), pp.349-360. ⟨10.4319/lo.2014.59.2.0349⟩. ⟨hal-02335852⟩

• Poster de conférence

Estimating groundwater discharge in the coastal lagoons of La Palme and Salses-Leucate along the French Mediterranean coastline by using radium isotopes

Pieter van Beek, Joseph Tamborski, Simon Bejannin, Souhaut Marc, Jordi Garcia-Orellanac, Thomas Stieglitz, Christelle Claude, Olivier Radakovitch, F. Lacan, Olivier Crispi, Mireille Pujo-Pay, Pascal Conan, Jocelyne Caparros, Audrey Gueneugues, Christophe Monin, J.L. Seidel, Pierre Anschutz

Although submarine groundwater discharge (SGD) has been investigated in many places of the world, very few studies were conducted along the French Mediterranean coastline, despite presence of several well-known karstic springs. Almost no information is available on the fluxes of water and chemical…

EGU General Assembly 2017, Apr 2017, Vienne, Austria. ⟨hal-02101167⟩

• Article dans une revue

Central role for ferritin in the day/night regulation of iron homeostasis in marine phytoplankton.

Hugo Botebol, Emmanuel Lesuisse, Robert Šuták, Christophe Six, Jean-Claude Lozano, Philippe Schatt, Valérie Vergé, Amos Kirilovsky, Joe Morrissey, Thibaut Léger, Jean-Michel Camadro, Audrey Gueneugues, Chris Bowler, Stéphane Blain, François-Yves Bouget

In large regions of the open ocean, iron is a limiting resource for phytoplankton. The reduction of iron quota and the recycling of internal iron pools are among the diverse strategies that phytoplankton have evolved to allow them to grow under chronically low ambient iron levels. Phytoplankton…

Proceedings of the National Academy of Sciences of the United States of America, 2015, 112 (47), pp.14652-7. ⟨10.1073/pnas.1506074112⟩. ⟨hal-01267693⟩