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54

Valerie Michotey, Director of MIO


  • Director of the Mediterranean Institute of Oceanography, Aix Marseille Univ, Univ Toulon, CNRS, IRD
  • 2014- 2021 Deputy director of MIO 
  • 2018-2021  Deputy director oresearch of  OSU Institut Pytheas
  • 2011-2019 Head of the Marine Biology and ecology  speciality of Marine sciences master , Aix Marseilel University  
  • 2000-2011 i Head of the Marine sciences speciality of Enevironnmental Bachelor , Aix Marseille university

 

2007 Professor    Aix- Marseille University

1994 Assistant Professor Aix- Marseille University

1994 Post Doctorat 2- CEA Grenoble

1992-93 Post Doctorat 1- UCSD La Jolla, California, USA

1992 PhD Rennes University  

1989 Master Microbial Ecology, Lyon I University 

1989 Ingenieer Biochemist INSA Lyon


Journal articles54 documents

  • Sandrine Ruitton, A. Blanfuné, Charles F. Boudouresque, Dorian Guillemain, Valerie Michotey, et al.. Rapid Spread of the Invasive Brown Alga Rugulopteryx okamurae in a National Park in Provence (France, Mediterranean Sea). Water, MDPI, 2021, 13 (16), pp.2306. ⟨10.3390/w13162306⟩. ⟨hal-03342953⟩
  • Sylvain Rigaud, Bruno Deflandre, Christian Grenz, Florian Cesbron, Lara Pozzato, et al.. Benthic oxygen dynamics and implication for the maintenance of chronic hypoxia and ecosystem degradation in the Berre lagoon (France). Estuarine, Coastal and Shelf Science, Elsevier, 2021, pp.107437. ⟨10.1016/j.ecss.2021.107437⟩. ⟨hal-03249104⟩
  • Sandrine Ruitton, Aurelie Blanfuné, Charles F. Boudouresque, Dorian Guillemain, Valerie Michotey, et al.. Rapid Spread of the Invasive Brown Alga Rugulopteryx okamurae in a National Park in Provence (France, Mediterranean Sea). Water, MDPI, 2021, 13 (16), pp.2306. ⟨10.3390/w13162306⟩. ⟨hal-03342562⟩
  • Valerie Michotey, Aurelie Blanfuné, Cristele Chevalier, Marc Garel, Frédéric Diaz, et al.. In situ observations and modelling revealed environmental factors favouring occurrence of Vibrio in microbiome of the pelagic Sargassum responsible for strandings. Science of the Total Environment, Elsevier, 2020, 748, pp.141216. ⟨10.1016/j.scitotenv.2020.141216⟩. ⟨hal-02933822⟩
  • Debany Fonseca-Batista, Xuefeng Li, Virginie Riou, Valerie Michotey, Florian Deman, et al.. Evidence of high N2 fixation rates in the temperate northeast Atlantic. Biogeosciences, European Geosciences Union, 2019, 16 (5), pp.999-1017. ⟨10.5194/bg-16-999-2019⟩. ⟨hal-02066554⟩
  • Axel Aigle, Patricia Bonin, Nicolas Fernandez -Nunez, Béatrice B. Loriod, Sophie Guasco, et al.. The nature of electron acceptor (MnIV/NO3) triggers differential expression of genes associated with stress and ammonium limitation responses in Shewanella algae C6G3. FEMS Microbiology Letters, Wiley-Blackwell, In press, ⟨10.1093/femsle/fny068⟩. ⟨hal-01766209⟩
  • Imen Zaghmouri, Valerie Michotey, Fabrice Armougom, Sophie Guasco, Patricia Bonin. Salinity shifts in marine sediment: Importance of number of fluctuation rather than their intensities on bacterial denitrifying community. Marine Pollution Bulletin, Elsevier, 2018, 130, pp.76 - 83. ⟨10.1016/j.marpolbul.2018.03.020⟩. ⟨hal-01735881⟩
  • Axel Aigle, Patricia Bonin, Chantal Iobbi-Nivol, Vincent Méjean, Valerie Michotey. Physiological and transcriptional approaches reveal connection between nitrogen and manganese cycles in Shewanella algae C6G3. Scientific Reports, Nature Publishing Group, 2017, Scientific Reports 7, 7, ⟨10.1038/srep44725⟩. ⟨hal-01493279⟩
  • Severine Martini, Valerie Michotey, Laurie Casalot, Patricia Bonin, Sophie Guasco, et al.. Bacteria as part of bioluminescence emission at the deep ANTARES station (North-Western Mediterranean Sea) during a one-year survey. Deep-Sea Research, 2016, 116, pp.33-40. ⟨10.1016/j.dsr.2016.07.014⟩. ⟨hal-01408722⟩
  • Sheryl Fernandes, Cedric Javanaud, Valerie Michotey, Sophie Guasco, Pierre Anschutz, et al.. Coupling of bacterial nitrification with denitrification and anammox supports N removal in intertidal sediments (Arcachon Bay, France). Estuarine, Coastal and Shelf Science, Elsevier, 2016, 179, pp.39-50. ⟨10.1016/j.ecss.2015.10.009⟩. ⟨hal-01408734⟩
  • Patricia Bonin, Christophe Vieira, Régis Grimaud, Cécile Militon, Philippe Cuny, et al.. Substrates specialization in lipid compounds and hydrocarbons of Marinobacter genus.. Environmental Science and Pollution Research, Springer Verlag, 2015, 22 (20), pp.15347-15359. ⟨10.1007/s11356-014-4009-y⟩. ⟨hal-01201711⟩
  • Cécile Militon, Olfa Hamdi, Valerie Michotey, Marie-Laure Fardeau, Bernard Ollivier, et al.. Ecological significance of Synergistetes in the biological treatment of tuna cooking wastewater by an anaerobic sequencing batch reactor.. Environmental Science and Pollution Research, Springer Verlag, 2015, pp.2015 Jul 22. ⟨10.1007/s11356-015-4973-x⟩. ⟨hal-01201712⟩
  • Morgan Petit, Patricia Bonin, Remi Amiraux, Valerie Michotey, Sophie Guasco, et al.. Dynamic of bacterial communities attached to lightened phytodetritus. Environmental Science and Pollution Research, Springer Verlag, 2015, 22 (18), pp.13681-92. ⟨10.1007/s11356-015-4209-0⟩. ⟨hal-01201708⟩
  • Robert Duran, Patricia Bonin, Ronan Jezequel, Karine Dubosc, Claire Gassie, et al.. Effect of physical sediments reworking on hydrocarbon degradation and bacterial community structure in marine coastal sediments.. Environmental Science and Pollution Research, Springer Verlag, 2015, 22 (20), pp.15248-15259. ⟨10.1007/s11356-015-4373-2⟩. ⟨hal-01201709⟩
  • Sheryl Fernandes, Cedric Javanaud, Axel Aigle, Valerie Michotey, Sophie Guasco, et al.. Anaerobic nitrification-denitrification mediated by Mn-oxides in meso-tidal sediments: Implications for N-2 and N2O production. Journal of Marine Systems, Elsevier, 2015, 144, pp.1-8. ⟨10.1016/j.jmarsys.2014.11.011⟩. ⟨hal-01157960⟩
  • Philippe Cuny, Franck Gilbert, Cécile Militon, Georges Stora, Patricia Bonin, et al.. Use of dispersant in mudflat oil-contaminated sediment: behavior and effects of dispersed oil on micro- and macrobenthos.. Environmental Science and Pollution Research, Springer Verlag, 2015, 22 (20), pp.15370-15376. ⟨10.1007/s11356-015-4800-4⟩. ⟨hal-01201710⟩
  • Axel Aigle, Valerie Michotey, Patricia Bonin. Draft-genome sequence of Shewanella algae strain C6G3. Standards in Genomic Sciences, 2015, 43 (10), pp.10.1186/s40793-015-0022-0. ⟨10.1186/s40793-015-0022-0⟩. ⟨hal-01194459⟩
  • Sheryl Fernandes, David L Kirchman, Valerie Michotey, Patricia Bonin, P A Lokabharathi. Bacterial diversity in relatively pristine and anthropogenically-influenced mangrove ecosystems (Goa, India).. Brazilian Journal of Microbiology, Sociedade Brasileira de Microbiologia, 2014, 45 (4), pp.1161-71. ⟨10.1590/S1517-83822014000400006⟩. ⟨hal-01166877⟩
  • Imen Zaghmouri, Valerie Michotey, Sophie Guasco, Patrick Raimbault, Nicole Garcia, et al.. Trends in salinity and inorganic nitrogen compounds in the Berre lagoon (1994-2011) bacterial activities and nitrogen budgets. Marine Pollution Bulletin, Elsevier, 2013, 67, pp.55-65. ⟨10.1016/j.marpolbul.2012.11.046⟩. ⟨hal-00796981⟩
  • S Fernandes, M Gonsalves, Valerie Michotey, Patricia Bonin, P Lokabharathi. Denitrification activity is closely linked to the total ambient Fe concentration in mangrove sediments of Goa, India. Estuarine, Coastal and Shelf Science, Elsevier, 2013, 131, pp.64-74. ⟨10.1016/j.ecss.2013.08.008⟩. ⟨hal-00872344⟩
  • Sheryl Fernandes, Patricia Bonin, Valerie Michotey, Nicole Garcia, P. A. Lokabharathi. Nitrogen-limited mangrove ecosystems conserve N through dissimilatory nitrate reduction to ammonium. Scientific Reports, Nature Publishing Group, 2012, 2, pp.419. ⟨10.1038/srep00419⟩. ⟨hal-00714213⟩
  • Valerie Michotey, Sophie Guasco, Dominique Boeuf, Nicola Morezzi, Brice Durieu, et al.. Spatio-temporal diversity of free-living and particle-attached prokaryotes in the tropical lagoon of Ahe atoll (Tuamotu Archipelago) and its surrounding oceanic waters. Marine Pollution Bulletin, Elsevier, 2012, 65 (10), pp.525-537. ⟨10.1016/j.marpolbul.2012.01.009⟩. ⟨hal-00739805⟩
  • Patrick Gregoire, Marie Laure Fardeau, Sophie Guasco, Joel Lagiere, Jean Cambar, et al.. Desulfosoma profundi sp nov., a thermophilic sulfate-reducing bacterium isolated from a deep terrestrial geothermal spring in France. Antonie van Leeuwenhoek, Springer Verlag, 2012, 101, pp.595-602. ⟨10.1007/s10482-011-9675-x⟩. ⟨hal-00690553⟩
  • R. Grimaud, J.-F. Ghiglione, Christine Cagnon, Béatrice Lauga, P.-J. Vaysse, et al.. Genome sequence of the marine bacterium Marinobacter hydrocarbonoclasticus SP17, which forms biofilms on hydrophobic organic compounds. Journal of Bacteriology, American Society for Microbiology, 2012, 194 (13), pp.3539-3540. ⟨10.1128/JB.00500-12⟩. ⟨hal-01643936⟩
  • Sheryl Fernandes, Valerie Michotey, Sophie Guasco, Patricia Bonin, P. A. Loka Bharathi. Denitrification prevails over anammox in tropical mangrove sediments (Goa, India). Marine Environmental Research, Elsevier science, 2012, 74, pp.9-19. ⟨10.1016/j.marenvres.2011.11.008⟩. ⟨hal-00700304⟩
  • Patrick Gregoire, Marie Laure Fardeau, Manon Joseph, Sophie Guasco, F Hamaide, et al.. Isolation and characterization of Thermanaerothrix daxensis gen. nov., sp. nov., a thermophilic anaerobic bacterium pertaining to the phylum "Chloroflexi", isolated from a deep hot aquifer in the Aquitaine Basin.. Systematic and Applied Microbiology, Elsevier, 2011, 34 (7), pp.494-7. ⟨hal-00752926⟩
  • Cedric Javanaud, Valerie Michotey, Sophie Guasco, Nicole Garcia, Pierre Anschutz, et al.. Anaerobic ammonium oxidation mediated by Mn-oxides: from sediment to strain level. Research in Microbiology, Elsevier, 2011, 162, pp.848-857. ⟨10.1016/j.resmic.2011.01.011⟩. ⟨hal-00725010⟩
  • Patrick Gregoire, Malek Bohli, Jean Luc Cayol, Manon Bartoli, Sophie Guasco, et al.. Caldilinea tarbellica sp nov., a filamentous, thermophilic, anaerobic bacterium isolated from a deep hot aquifer in the Aquitaine Basin. International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, 2011, 61 (Part6), pp.1436-1441. ⟨10.1099/ijs.0.025676-0⟩. ⟨hal-00752944⟩
  • Joshua Armitano, Claudine Baraquet, Valerie Michotey, Vincent Mejean, Cecile Jourlin-Castelli. The chemical-in-mu well: a high-throughput technique for identifying solutes eliciting a chemotactic response in motile bacteria. Research in Microbiology, Elsevier, 2011, 162, pp.934-938. ⟨10.1016/j.resmic.2011.03.001⟩. ⟨hal-00725012⟩
  • Patrick Gregoire, Marie Laure Fardeau, Manon Bartoli, Sophie Guasco, Francette Hamaide, et al.. Isolation and characterization of Thermanaerothrix daxensis gen. nov., sp nov., a thermophilic anaerobic bacterium pertaining to the phylum "Chloroflexi", isolated from a deep hot aquifer in the Aquitaine Basin. Systematic and Applied Microbiology, Elsevier, 2011, 34, pp.494-497. ⟨10.1016/j.syapm.2011.02.004⟩. ⟨hal-00690513⟩
  • Laurent Urios, Valerie Michotey, Laurent Intertaglia, Françoise Lesongeur, Philippe Lebaron. Thalassobaculum salexigens sp. nov., a new member of the family Rhodospirillaceae from the NW Mediterranean Sea, and emended description of the genus Thalassobaculum. International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, 2010, 60 (Pt 1), pp.209-213. ⟨10.1099/ijs.0.011460-0⟩. ⟨hal-00617772⟩
  • Sheryl Oliveira Fernandes, P.A. Loka Bharathi, Patricia Bonin, Valerie Michotey. Denitrification : An important Pathway for Nitrous Oxide Production in Tropical Mangrove Sediments (Goa, India). Journal of Environmental Quality, Crop Science Society of America, 2010, 39, pp.1507-1516. ⟨10.2134/jeq2009.0477⟩. ⟨hal-00506441⟩
  • Marie-Laure Fardeau, Vanessa Barsotti, Jean-Luc Cayol, Sophie Guasco, Valerie Michotey, et al.. Caldinitratiruptor microaerophilus, gen.nov., sp. nov. isolated from a French hot spring (Chaudes-Aigues, Massif Central) : a novel cultivated facultative microaerophilic anaerobic thermophile pertaining to the Symbiobacterium branch within the Firmicutes. Extremophiles, Springer Verlag, 2010, 14, pp.241-247. ⟨10.1007/s00792-010-0302-y⟩. ⟨hal-00506433⟩
  • Laura Minjeaud, Valerie Michotey, Nicole Garcia, Patricia Bonin. Seasonal variation in di-nitrogen fluxes and associated processes (denitrification, anammox and nitrogen fixation) in sediment subject to shellfish farming influences. Aquatic Sciences - Research Across Boundaries, Springer Verlag, 2009, pp.1-11. ⟨10.1007/s00027-009-0100-8⟩. ⟨hal-00412229⟩
  • Jean-Francois Rontani, Mina Nassiry, Valerie Michotey, Sophie Guasco, Patricia Bonin. Formation of pristane from a-tocopherol under simulated anoxic sedimentary conditions : A combination of biotic and abiotic degradative processes. Geochimica et Cosmochimica Acta, Elsevier, 2009, 74, pp.252-263. ⟨10.1016/j.gca.2009.09.028⟩. ⟨hal-00506418⟩
  • Laura Minjeaud, Patricia Bonin, Valerie Michotey. Nitrogen fluxes from marine sediments : quantification of the associated co-occurring bacterial processes. Biogeochemistry, Springer Verlag, 2008, 90, pp.141-157. ⟨10.1007/s10533-008-9241-4⟩. ⟨hal-00362536⟩
  • Laurent Urios, Valerie Michotey, Laurent Intertaglia, Françoise Lesongeur, Philippe Lebaron. Nisaea denitrificans gen.nov., sp.nov. and Nisaea nitrireducens sp. nov., two novel members of the class Alphaproteobacteria from the Mediterranean Sea. International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, 2008, 58, pp.2336-2341. ⟨10.1099/ijs.0.64592-0⟩. ⟨hal-00362716⟩
  • Laurent Urios, Valerie Michotey, Laurent Intertaglia, Françoise Lesongeur, Philippe Lebaron. Nisaea denitrificans gen. nov., sp. nov. and Nisaea nitritireducens sp. nov., two novel members of the class Alphaproteobacteria from the Mediterranean Sea. International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, 2008, 58 (Pt 10), pp.2336-2341. ⟨10.1099/ijs.0.64592-0⟩. ⟨hal-00617742⟩
  • Christelle Desnues, Valerie Michotey, Andrea Wieland, Cui Zhizang, Aude Fourçans, et al.. Seasonal and diel distributions of denitrifying and bacterial communities in a hypersaline microbial mat (Camargue, France). Water Research, IWA Publishing/Elsevier, 2007, 41, pp.3407-3419. ⟨hal-00165666⟩
  • Gilles Miralles, David Nerini, Claude Manté, Monique Acquaviva, Pierre Doumenq, et al.. Effects of spilled Oil on Bacterial Communities of mediterranean Coastal Anoxic Chronically Subjected to oil Hydrocarbon Contamination. Microbial ecology, Springer Verlag, 2007, pp.1-16. ⟨10.1007/s00248-007-9221-6⟩. ⟨hal-00169724⟩
  • G. Miralles, David Nerini, C. Manté, M. Acquaviva, P. Doumenq, et al.. Effects of spilled oil on bacterial communities of Mediterranean coastal anoxic sediments chronically subjected to oil hydrocarbon contamination. Microbial ecology, Springer Verlag, 2007, 54 (4), pp.646-661. ⟨10.1007/s00248-007-9221-6⟩. ⟨hal-02590055⟩
  • Patricia Bonin, Valerie Michotey. Nitrogen budget in a microbial mat of Camargue (South of France). Marine Ecology Progress Series, Inter Research, 2006, XXX, pp.XX Xx. ⟨hal-00087392⟩
  • Christèle Goregues, Valerie Michotey, Patricia Bonin. Molecular, Biochemical and Physiological Approaches for Understanding the Ecology of Denitrification. Microbial ecology, Springer Verlag, 2005, 49, pp.198-208. ⟨hal-00084748⟩
  • Christelle Goréguès, Valerie Michotey, Patricia Bonin. Molecular, Biochemical, and Physiological Approaches for Understanding the Ecology of Denitrification. Microbial ecology, Springer Verlag, 2005, 49 (2), pp.198-208. ⟨hal-02007308⟩
  • Patricia Bonin, Valerie Michotey, Cristiana Cravo-Laureau, Agnès Hirschler-Réa. The anaerobic hydrocarbon biodegrading bacteria: An overview. Ophelia, Taylor & Francis, 2004, 58 (3), pp.243-254. ⟨10.1080/00785236.2004.10410232⟩. ⟨hal-01631864⟩
  • C Goregues, Valerie Michotey, Patricia Bonin. Isolation of hydrocarbonoclastic denitrifying bacteria from berre microbial mats. Ophelia, Taylor & Francis, 2004, 58, pp.263-270. ⟨hal-00796815⟩
  • Christelle Goréguès, Valerie Michotey, Patricia Bonin. Isolation of hydrocarbonoclastic denitrifying bacteria from berre microbial mats. Ophelia, Taylor & Francis, 2004, 58 (3), pp.263-270. ⟨hal-02008690⟩
  • M Gilewicz, N Nihmatuzaron, T Nadalig, H Budzinski, Pierre Doumenq, et al.. Isolation and characterization of a marine bacterium capable of utilizing 2-methylphenanthrene. Applied Microbiology and Biotechnology, Springer Verlag, 1997, 48, pp.528-533. ⟨hal-00707330⟩
  • Valerie Michotey, Patricia Bonin. Evidence for anaerobic bacterial processes in the water column: denitrification and dissimilatory nitrate ammonification in the northwestern Mediterranean Sea. Marine Ecology Progress Series, Inter Research, 1997, 160, pp.47-56. ⟨hal-00708672⟩
  • Jean-Francois Rontani, Mj Gilewicz, Valerie Michotey, Tl Zheng, Patricia Bonin, et al.. Aerobic and anaerobic metabolism of 6,10,14-trimethylpentadecan-2-one by a denitrifying bacterium isolated from marine sediments. Applied and Environmental Microbiology, American Society for Microbiology, 1997, 63, pp.636-643. ⟨hal-00706691⟩
  • Valerie Michotey, B Toussaint, P Richaud, Pm Vignais. Characterisation of the mcpA and mcpB genes capable of encoding methyl-accepting type chemoreceptors in Rhodobacter capsulatus. Gene, Elsevier, 1996, 170, pp.73-76. ⟨hal-00709001⟩
  • Bs Powell, Dl Court, T Inada, Y Nakamura, Valerie Michotey, et al.. NOVEL PROTEINS OF THE PHOSPHOTRANSFERASE SYSTEM ENCODED WITHIN THE RPON OPERON OF ESCHERICHIA-COLI - ENZYME IIA(NTR) AFFECTS GROWTH ON ORGANIC NITROGEN AND THE CONDITIONAL LETHALITY OF AN ERA(TS) MUTANT. Journal of Biological Chemistry, American Society for Biochemistry and Molecular Biology, 1995, 270, pp.4822-4839. ⟨hal-00709150⟩
  • Tm Ramseier, S Bledig, Valerie Michotey, R Feghali, Mh Saier. THE GLOBAL REGULATORY PROTEIN FRUR MODULATES THE DIRECTION OF CARBON FLOW IN ESCHERICHIA-COLI. Molecular Microbiology, Wiley, 1995, 16, pp.1157-1169. ⟨hal-00725014⟩
  • S Ryu, Tm Ramseier, Valerie Michotey, Mh Saier, S Garges. EFFECT OF THE FRUR REGULATOR ON TRANSCRIPTION OF THE PTS OPERON IN ESCHERICHIA-COLI. Journal of Biological Chemistry, American Society for Biochemistry and Molecular Biology, 1995, 270, pp.2489-2496. ⟨hal-00709149⟩