Ingrid OBERNOSTERER
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Dr. OBERNOSTERER Ingrid
Research ID: A-5434-2011 |
Ingrid Obernosterer
Senior Research Scientist – DR CNRS
Previous employment
Marie Curie Fellow at the Biological Oceanography Lab, Banyuls sur mer
PostDoc at the University of South Carolina, USA
Education
Ph.D. 2000, University of Groningen, The Netherlands
M.S. 1994, University of Vienna, Austria
Research Interests
Microbial oceanography and microbial ecology, links between structure and function of microbial communities, bacterial roles in the marine carbon and iron cycles, interactions between dissolved organic matter and microbial diversity, natural iron fertilization of the Southern Ocean, classical biogeochemical approaches and meta-omics tools
Projects
2018-2022: co-PI and chief scientist of the project MOBYDICK (Marine Ecosystem Biodiversity and Dynamics of Carbon around Kerguelen: an integrated view)
2014-2019: SOCLIM (Southern Ocean and Climate) www.soclim.com
2016-2019: HEOBI (Heard Earth-Ocean-Biosphere-Interactions) voyage aboard the Australian R/V Investigator
2011-2013: KEOPS2 (Kerguelen Ocean and Plateau Compared Study)
2006-2009: KEOPS1 (Kerguelen Ocean and Plateau Compared Study)
PhD Students (past 5 years)
Marine Landa https://www.researchgate.net/profile/Marine_Landa
Laetitia Dadaglio https://www.researchgate.net/profile/Laetitia_Dadaglio
PostDocs (past 5 years) :
Eva Ortega-Retuerta, Marie Curie fellow
Julie Dinasquet, Marie Curie fellow https://www.researchgate.net/profile/Julie_Dinasquet
Publications (past 5 years)
Debeljak P., E. Toulza, S. Beier, S. Blain, I. Obernosterer (2019) Microbial iron metabolism as revealed by gene expression profiles in contrasted Southern Ocean regimes Environ. Microbiol.doi:10.1111/1462-2920.14621
Liu Y., P. Debeljak, M. Rembauville, S. Blain, I. Obernosterer (2019) Diatoms shape the biogeography of heterotrophic prokaryotes in early springin the Southern Ocean. Environ. Microbiol. doi:10.1111/1462-2920.14579
Koedooder C., A. Guéneuguès, R. Van Geersdaële, V. Vergé, F.-Y. Bouget, Y. Labreuche, I. Obernosterer, S. Blain (2018) The role of the glyoxylate shunt in the acclimation to iron limitation in marine heterotrophic bacteria. Front.Mar. Sci. 5:435. doi: 10.3389/fmars.2018.00435
Dadaglio L., J. Dinasquet, I. Obernosterer, F. Joux (2018) Differential responses of bacteria to diatom-derived dissolved organic matter in the Arctic Ocean. Aquat Microb Ecol 82:59-72
Dinasquet J., E. Ortega-Retuerta, C. Lovejoy, I. Obernosterer. Editorial: Microbiology of the rapidly changing polar environments. Front.Mar. Sci. 5: 154. Doi: 10.3389/fmars.2018.00154
Landa M., S. Blain, J. Harmand, S. Monchy, A. Rapaport, I. Obernosterer (2018) Major changes in the composition of a Southern Ocean bacterial community in response to diatom-derived dissolved organic matter. FEMS Microbiology Ecology, 94: fiy034. doi.org/10.1093/femsec/fiy034
Fourquez M., S. Beier, E. Jongmans, R. Hunter, I. Obernosterer (2016) Uptake of leucine, chitin and iron by prokaryotic groups during spring phytoplankton blooms induced by natural iron fertilization off Kerguelen Island (Southern Ocean) Front. Mar. Sci. 3:256. doi: 10.3389/fmars.2016.00256
Lasbleiz M., K. Leblanc, L. Armand, U. Christaki, C. Georges, I. Obernosterer, B. Quéguiner (2016) Composition of diatom communities and their contribution to plankton biomass in the naturally iron fertilized region of Kerguelen in the Southern Ocean. FEMS Microbiology Ecology 92, fiw171
Moran M.-A., E.B. Kujawinski, A. Stubbins, R. Fatland, L.I. Aluwihare, A. Buchan, B.C. Crump, P.C. Dorrestein, S.T. Dyhrman, N.J. Hess, B. Howe, K. Longnecker, P.M. Medeiros, J. Niggemann, I. Obernosterer, D.J. Repeta, J.R. Waldbauer (2016) Deciphering ocean carbon in a changing world. PNAS 113 : 3143-3151.
Landa M., Blain S., Christaki U., Monchy S., ObernostererI. (2016) Shifts in bacterial community composition associated with increased carbon cycling in a mosaic of phytoplankton blooms ISME J. 10: 39-50
Beier S., Gálvez M.J., Molina V., Sarthou G., Queroué F., Blain S., Obernosterer I (2015) The transcriptional regulation of the glyoxylate cycle in SAR11 in response to iron fertilization in the Southern Ocean EMIR 7: 427-434 doi:10.1111/1758-2229.12267 (IF: 3.5).
Beier S., Rivers A.R., MoranM.A., Obernosterer I. (2015) Phenotypic Plasticity in Heterotrophic Marine Microbial Communities. ISMEJ 9: 1141-1151 56.
Beier S., Rivers, A.R., Moran M.A., Obernosterer I. (2015) The transcriptional response of prokaryotes to phytoplankton-derived DOM in seawater. Environ Microbiol 17: 3466-3480.
Bowie A.R. van der Merwe P., Quéroué F., Trull T., Fourquez M., Planchon F., Sarthou G., Chever F., Townsend A.T., Obernosterer I., Sallée J.-B., Blain S. (2015) Iron budgets for three distinct biogeochemical sites around the Kerguelen Archipelago (Southern Ocean) during the natural fertilisation study KEOPS-2. BG 12: 4421-4445
Obernosterer I., M. Fourquez, S. Blain (2015) Fe and C co-limitation of heterotrophic bacteria in the naturally fertilized region off Kerguelen Islands. BG 12: 1983-1992
Fourquez M., I. Obernosterer, D. Davies, T. Trull, S. Blain (2015). Microbial iron uptake in the naturally fertilized waters in the vicinity of Kerguelen Islands: phytoplankton-bacteria interactions. BG 12: 1893-1906
Tremblay, J. Caparros, K. Leblanc, I. Obernosterer (2015) Origin and fate of particulate and dissolved organic matter in a naturally iron-fertilized region of the Southern Ocean. BG 12: 607-621 (IF: 4.64).
Blain S., J. Capparos, A. Guéneuguès, I. Obernosterer, L. Oriol (2015) Distributions and stoichiometry of dissolved nitrogen and phosphorus in the iron fertilized region near Kerguelen (Southern Ocean). BG 12 : 623-635
Christaki U., Lefèvre D., Georges C., Colombet J., P; Catala, Sime-Ngando T., S. Blain, Obernosterer I. (2014) Microbial food web dynamics during spring phytoplankton blooms in the naturally iron fertilized Kerguelen area (Southern Ocean) Biogeosciences 11, 6739-6753
Salter I., P. E. Galand, S. K. Fagervold, P. Lebaron, I. Obernosterer, M. Oliver, M.T. Suzuki, C. Tricoire(2015) Seasonal dynamics of active SAR11 ecotypes in the oligotrophic Northwest Mediterranean Sea. ISMEJ 9: 347-360
MalitsA., ChristakiU., Obernosterer I., Weinbauer M.G.(2014). Enhanced viral production and virus-mediated mortality of bacterioplankton in a natural iron-fertilized bloom event above the Kerguelen Plateau. Biogeosciences 11, 5931-5955
Pulido-Villena, E., Baudoux A.-C., Obernosterer I., Landa M., Caparros J., Catala P., Georges C., Harmand J., and Guieu C. (2014) Microbial food web dynamics in response to a Saharan dust event: results from a mesocosm study in the oligotrophic Mediterranean Sea. Biogeosciences 11: 5607-5619
Fourquez M., Devez A.,Schaumann A.,Gueneugues A.,Jouenne T.,Obernosterer I.,S. Blain (2014). Effects of iron limitation on growth and carbon metabolism in oceanic and coastal heterotrophic bacteria. Limnol Oceanogr 59: 349-360
Landa, M., M. Cottrell, D. Kirchman, K. Kaiser, P.M. Medeiros, L. Tremblay, N. Batailler, J. Caparros, P. Catala, K. Escoubeyrou, L. Oriol, S. Blain and I. Obernosterer (2014) Phylogenetic and structural response of heterotrophic bacteria to dissolved organic matter of different chemical composition in a continuous culture. Environ Microbiol. 16:1668-1681
Egalement dans la rubrique
- Blain Stéphane
- Bouget François-Yves
- Conan Pascal
- Fernandez Camila
- Ghiglione Jean-Francois
- Joux Fabien
- Pujo-Pay Mireille
- Salter Ian
- Caparros Jocelyne
- Catala Philippe
- Gueneugues Audrey
- Lozano Jean-Claude
- Oriol Louise
- Sanz Frédérique
- Schatt Philippe
- Beier Sara
- Blanchet Marine
- Botebol Hugo
- Lefort Thomas
- Rembauville Mathieu
- Sanchez Denisse
- Séverin Tatiana
- Dinasquet Julie
- Levipan Hector
- Landa Marine
- Alcaman
- Valdes Valentina
- Crispi Olivier
- Dussud Claire
- Dadaglio Laetitia
- Guyon Jean-Baptiste
- Bijoux Amandine
- Lambert Stefan
- Debeljak Pavla
- Koedooder Coco
- Liu Yan
- Devic Martine
- Meisterzheim Leïla
- Ortega Eva
- Marie Barbara
- CHENG Jingguang
- Jacquin Justine
- Rain Angel
- Vergé Valérie
- Callac Nolwenn
- Beier Sara
- Gonzales Lorena Maria
- Odobel Charlène
- Chasselin Léo
- Tisserand Lucas
- Eliot Chatton
- Sun Ying
- Rigonato Janaina
- Nawal Bouchachi
- Sophie Rabouille
- Barbe Valérie
- Rui Zhang
- Maxime Beauvais
Le LOMIC en chiffres
8 Chercheurs CNRS
4 Enseignant-chercheurs
1 Chercheuse accueillie
8 Tech/Ingénieurs
1 Post doctorant
7 Etudiants en thèse