Chargé(e) de recherche CNRS

I am a research associate at the CNRS since 2011. My main research interest lies in understanding the implication of viruses for ocean functioning and evolution. To tackle this question, we develop an integrative strategy from the molecule to the ecosystems. Besides this fundamental research, we also explore the potential of viruses to control infectious disease in marine organisms through phage therapy approaches.

Main scientific interest

  • Virus ecology, diversity, evolution
  • Microbes interactions
  • Marine ecosystems ecology
  • Carbon biogeochemical cycle


Current students and postdocs

  • Laure Arsenieff, PhD student, Parasite network associated to diatoms in the Western English Channel
  • Pei Ge, postdoc, Comparative proteomics of marine algal viruses (prasinoviruses)
  • Pierre-Yves Mocaer, master student, exploration of virus associated depolymerases


Main current research projects

  • ANR JCJC « CALYPSO » : Ecological and biogeochemical implications of the glycosidases bound to marine viruses (2015 – 2019, PI :A-C Baudoux)
  • CG20 “DYNAMO” : Interactions durables et contrôle des blooms et successions de diatomées en Manche Occidentale (2015 – 2018, PIs : A-C Baudoux, N. Simon)
  • SADv2  « PATHOGEN » : Molecular Interactions between marine prasinoviruses and their hosts using emerging omics approaches (2014 - 2016, PI :A-C Baudoux)
  • Fondation TOTAL “PATRICIA” : le paradoxe viral dans les écosystemes coralliens : le cas de la Baie de Nha Trang (Vietnam) (2015 - 2017, PI: Y. Bettarel)
  • ANR Blanc « REVIREC »: Resistance to prasinoviruses analysed by transcriptomics and recombination (2012-2016, PI: N. Grimsley)




Diversity of marine viruses

  • Arsenieff L, Simon N, Rigaut-Jalabert F, Le Gall F, Chaffron S, Corre E, Com E, Bigeard E, Baudoux A-C. 2019. First viruses infecting the marine diatom Guinardia delicatula. Frontiers in Microbiology doi: 10.3389/fmicb.2018.03235
  • Jacquemot L., Bettarel Y., Monjol J., Corre E., Halary S., C. Desnues, C., Bouvier T., Ferrier-Pagès Baudoux A-C. 2018. Therapeutic potential of a new jumbo phage that infects Vibrio coralliilyticus, a widespread coral pathogen. Accepted in Frontiers in Microbiology - Virology
  • Lossouarn J., Nesbø C.L., Mercier C., Zhaxybayeva O., Johnson M.S., Cahrchuck R., Farasin J., Bienvenu N., Baudoux A-C., Michoud G., Jebbar M., Geslin C. 2015. “Ménage à trois”: a selfish genetic element uses a virus to propagate within Thermotogales strain. Environmental Microbiol 17(9): 3278-3288
  • Baudoux A-C., Hendrix R., Lander G. C., Bailly X., Podell S., Paillard C. Johnson J. E. , Potter C. S., Carragher B., and Azam F. 2012. Genomic and functional analysis of Vibrio phage SIO-2 reveals novel insights into ecology and evolution of marine siphoviruses Environmental Microbiology 14(8):2071-86
  • Lander G. C., Baudoux A-C., Azam F., Potter C. S., Carragher B., Johnson J. E. 2012. Capsomer dynamics and stabilization in particles with T=12 quasi-symmetry; the cryoEM reconstructions of the marine bacteriophage SIO-2 and its procapsid. Structure 20: 498 - 503
  • Baudoux A-C. and Brussaard C.P.D. 2005. Characterization of different viruses infecting the marine harmful algal bloom species Phaeocystis globosa. Virology 341: 80-90


Host-virus dynamics at different scales

  • E. Ruiz, A-C. Baudoux, SimonN., R-A. Sandaa, T.F. Thingstad and A. Pagarete. 2017. Micromonas versus virus: New experimental insights challenge viral impact . Env Microbiology 19(5):2068-2076.
  • Demory D., Arsenieff L., Simon N., Six C., Rigaut-Jalabert F., Marie D., Ge P., Bigeard E., Jacquet S., Sciandra A., Bernard O., Rabouille S. and Baudoux A-C.  2017. Temperature is a key factor in Micromonas - virus interactions. The ISME J. 11: 601–612
  • Baudoux A-C., Lebredonchel H., Dehmer H., Guillou L., Bozec Y., Cariou T., Desdevise Y., Derelle E., Edern R., Foulon E., Grimsley N., Jalabert F., Latimier M., Moreau H., and Simon N. 2015. Interplay between Micromonas species and their viruses in the Western English Channel. Environmental Microbiol Reports 7(5): 765–773
  • Baudoux A-C. and Brussaard C.P.D. 2008. Effect of irradiance on viral infection of two marine phytoplankton. Journal of Phycology 44: 902-908
  • Brussaard C.P.D., Bratbak G., Baudoux A-C., and Ruardij. P. 2007. Phaeocystis and its interaction with viruses. Biogeochemistry 83: 201-215


Ecological and evolutionary implications of marine viruses

  • Lelchat F., Mocaer P.Y., Ojima T., (…) Boisset C., Baudoux A-C. 2019. Degradation of bacterially derived DOM by marine viruses. FEMS Microb Ecol 95 (7): fiz079
  • Pulido-Villena E., Baudoux A-C., Obernosterer I., Caparros J., Catala P., Georges C., Harmand J., Landa M., 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
  • Baudoux A-C., Noordeloos A.A.M, Veldhuis M.J.W., and Brussaard C.P.D. 2006. Virally induced mortality of Phaeocystis globosa during two spring blooms in temperate coastal waters. Aquatic Microbial Ecology 44: 207-217
  • Baudoux A-C., Veldhuis M.J.W., Witte H.J., and Brussaard C.P.D. 2007. Viruses as mortality agents in deep chlorophyll maximum layer during IRONAGES III. Limnology and Oceanography 52: 2519-2529