Senior researcher CNRS

Head of the ECOMAP team, I am a marine microbial ecologist interested in understanding the structure of prokaryotic communities and how environmental factors shape their diversity. My interests also focuse on understanding interspecies interactions between bacteria and phytoplankton in the marine environment.

Research Interests

    Functioning of microbial systems
    Aquatic microbial ecology
    Microalgae-bacteria interactions
    Microbial diversity and identification of nonculturable prokaryotes

Educational Background

    Habilitation à Diriger les Recherches (HDR), University of Western Brittany, Brest, France (2002)
    Postdoctoral fellow, Belgian Nuclear Research Center, Mol, Belgium (1991-1992)
    PhD in Biological Oceanography, University of Western Brittany, Brest, France (2002)

Professional Experience

    Research Director (CNRS), Station Biologique, UMR 7144, Roscoff, (2006-)
    Research Director (CNRS), European Institute for Marine Studies (IUEM), UMR 6197, Plouzané (2003-2005)
    Research Director (CNRS), European Institute for Marine Studies (IUEM), UMR 6539, Plouzané (2002-2003)
    Research Scientist (CNRS), European Institute for Marine Studies (IUEM), UMR 6539, Plouzané (2000-2002)
    Research Scientist (CNRS), Station Biologique, UPR 9042 Roscoff, (1992-1999)



You can see the full list and download reprints from Research Gate.


Vergne, A., V. Darbot, C. Bardot, F. Enault, A-H. Lejeune, J-F. Carrias, B. Corbara, R. Céréghino, C. Leroy, C. Jeanthon, E. Giraud, I. Mary & A-C. Lehours. 2021. Assemblages of anoxygenic bacteria in tank bromeliads exhibit a host-specific signature. J. Ecol. 109: 2550-2565, doi: 10.1111/1365-2745.13657.

Massicotte, P., A. Rainer, A. David, P. Archambault, S. Balzano, S. Bélanger, R. Benner , D. Boeuf, A. Bricaud, F. Bruyant, G. Chaillou, M. Chami, B. Charrière, J. Chen, H. Claustre, P. Coupel, N. Delsaut, D. Doxaran, J. Ehn, C. Fichot, M-H. Forget, P. Fu, J. Gagnon, N. Garcia, B. Gasser, J-F. Ghiglione, G. Gorsky, M. Gosselin, P. Gourvil, Y. Gratton, P. Guillot, H.J. Heipieper, S. Heussner, S. Hooker, Y. Huot, V. Jacq, C. Jeanthon, J. Wade, F. Joux, K. Kawamura, B. Lansard, E. Leymarie, H. Link, C. Lovejoy, C. Marec, D. Marie, J. Martin, G. Massé, A. Matsuoka, V. McKague, A. Mignot, W. L. Miller, J-C. Miquel, A. Mucci, K. Ono, E. Ortega, C. Panagiotopoulos, T . Papakyriakou, J. Para, M. Picheral, D. Piepenburg, L. Prieur, P. Raimbault, J. Ras, R. A. Reynolds, A. Rochon, J-F. Rontani, Schmechtig Catherine, S. Schmidt, R. Sempéré, Y. Shen, G. Song, D. Stramski, G. D. Stroud, E. Tachibana, A. Thirouard, I. Tolosa, J-E. Tremblay, M. Vaïtilingom, D. Vaulot, F. Vaultier, J. K. Volkman, J. E. Vonk, H. Xie, G. Zheng & M. Babin. 2021. The Malina oceanographic expedition: How do changes in ice cover, permafrost and UV radiation impact on biodiversity and biogeochemical fluxes in the Arctic Ocean. Earth Syst. Sci. Data, 13, 1561–1592, 2021, doi: 10.5194/essd-13-1561-2021.

Lehours, A-C., F. Enault, D. Boeuf & C. Jeanthon. 2018. Biogeographical patterns of aerobic anoxygenic phototrophic bacteria reveal an ecological consistency of phylogenetic clades in different oceanic biomes. Sci. Rep. 8: 4105. doi: 10.1038/s41598-018-22413-7.

Hubas, C., D. Bœuf, B. Jesus, N. Thiney, Y. Bozec & C. Jeanthon. 2017. A nanoscale study of carbon and nitrogen fluxes in mats of purple sulfur bacteria : Implications for coastal carbon cycles at the surface of coastal sediments. Front. Microbiol. 8:1995.

Boeuf, D., R. Lami, E. Cunnington & C. Jeanthon. 2016. Abundance and distribution of proteorhodopsin genes in the western Arctic Ocean. Front. Microbiol. 7:1548, doi: 10.3389/fmicb.2016.01584.

Zeng, Q., Y. Liu, C. Jeanthon, R. Zhang, W. Lin, J. Yao & N. Jiao. 2016. Geographical impact on genome divergence as revealed by comparison of nine citromicrobial genomes. Appl. Env. Microbiol. 82 : 7205-7216, doi:10.1128/AEM.02495-16.

Lehours, A-C., A-H. Le Jeune, J-P. Aguer, R. Cereghino, B. Corbara, B. Kéraval, C. Leroy, F. Perrière, C. Jeanthon & J-F. Carrias. 2016. Unexpectedly high bacteriochlorophyll a concentrations in Neotropical tank bromeliads. Env. Microbiol. Rep. doi:10.1111/1758-2229.12426.

Bœuf, D., S. Audic, L. Brillet-Guéguen, C. Caron & C. Jeanthon. 2015. MicRhoDe: a curated database for the analysis of microbial rhodopsin diversity and evolution. Database article ID bav080; doi:10.1093/database/bav080.

Lehours, A-C. & C. Jeanthon. 2015. The hydrological context determines the beta-diversity of aerobic  phototrophic bacteria in European Arctic seas but does not favor endemism. Front. Microbiol. 6:638. doi: 10.3389/fmicb.2015.00638

Boeuf, D., F. Humily & C. Jeanthon. 2014. Diversity of Arctic pelagic Bacteria with an emphasis on photoheterotrophs: a review. Biogeosciences 11: 3309-3322.

Hubas, C., B. Jesus, M. Ruivo, T. Meziane, N. Thiney, D. Davoult, N. Spilmont, D. M. Paterson & C. Jeanthon. 2013. Proliferation of purple sulphur bacteria at the sediment surface affects intertidal mat diversity and functionality. PLoS ONE 8: e82329.

Mella-Flores, D., S. Mazard, F. Humily, F. Partensky, F. Mahé, L. Bariat, C. Courties, D. Marie, J. Ras, R. Mauriac, C. Jeanthon, E. M. Bendif, M. Ostrowski, D. J. Scanlan & L. Garczarek. 2011. Is the distribution of Prochlorococcus and Synechococcus ecotypes in the Mediterranean Sea affected by global warming? Biogeosciences, 8: 2585-2804.

Jeanthon, C., D. Boeuf, O. Dahan, F. Le Gall, L. Garczarek, E. M. Bendif & A.-C. Lehours. 2011. Diversity of cultivated and metabolically active aerobic anoxygenic phototrophic bacteria along an oligotrophic gradient in the Mediterranean Sea. Biogeosciences, 8: 1955-1970.

Hubas, C., B. Jesus, C. Passarelli & C. Jeanthon. 2011. Tools providing new insight into coastal anoxygenic purple bacterial mats: Review and perspectives. Res. Microbiol. 162:858-868.

Lamy, D., C. Jeanthon, M.T. Cottrell, D. L. Kirchman F. Van Wambeke, J. Ras, O. Dahan, M. Pujo-Pay, L. Oriol, L. Bariat, P. Catala, V. Cornet-Barthaux & P. Lebaron. 2011. Ecology of aerobic anoxygenic phototrophic bacteria along an oligotrophic gradient in the Mediterranean Sea. Biogeosciences 8:973-985.

Lehours, A−C., M. Cottrell, O. Dahan, D. L. Kirchman & C. Jeanthon. 2010. Summer distribution and diversity of aerobic anoxygenic phototrophic bacteria in the Mediterranean Sea in relation to environmental variables. FEMS Microbiol. Ecol. 74:397-409.


Câmara dos Reis, M., S. Romac , F. Le Gall, D. Marie, M. J. Frada, G. Koplovitz, T. Cariou, N. Henry, C. de Vargas & C. Jeanthon. 2022. Exploring the phycosphere of Emiliania huxleyi: from bloom dynamics to microbiome assembly experiments. bioRxiv, doi: 10.1101/2022.02.21.481256.

Cai, R., E. Kayal, C. Alves-de-Souza, E. Bigeard, E. Corre, C. Jeanthon, D. Marie, B. M. Porcel, R. Siano, J. Szymczak, M. Wolf & L. Guillou. 2020. Cryptic species in the parasitic Amoebophrya species complex revealed by a polyphasic approach. Sci. Rep. 10:2531,

Crenn, K., B. Bunk, C. Spröer, J. Overmann & C. Jeanthon. 2019. Complete genome sequence of the Silicimonas algicola type strain, a representative of the Roseobacter group isolated from the cell surface of the marine diatom Thalassiosira delicatula. Microbiol. Res. Announc. 8: e00108-19. doi: 10.1128/MRA.00108-19.

Alves-de-Souza, C., T. S. Benevides, M. Menezes, C. Jeanthon & L. Guillou. 2018. First report of vampyrellid predator-prey dynamics in a marine system. ISME J. (

Crenn, K., D. Duffieux & C. Jeanthon. 2018. Bacterial epibiotic communities of ubiquitous and abundant marine diatoms are distinct in short- and long-term associations. Front. Microbiol. 9:2879. doi: 10.3389/fmicb.2018.02879.

Kleinjan, H., C. Jeanthon, C. Boyen & S. M. Dittami. 2017. Exploring the cultivable Ectocarpus microbiome. Front. Microbiol. 8: 2456. doi: 10.3389/fmicb.2017.02456

Crenn, K., D. Serpin, C. Lepleux, J. Overmann & C. Jeanthon. 2016. Silicimonas algicola gen. nov., sp. nov., a novel member of the Roseobacter clade isolated from the cell surface of the marine diatom Thalassiosira delicatula. Int. J. Syst. Evol. Microbiol. 66 : 4580-4588, doi: 10.1099/ijsem.0.001394.

Blanquart, F., M. Valero, C. Alves-de-Souza, A. Dia, F. Lepelletier, E. Bigeard, C. Jeanthon, C. Destombe & L. Guillou. 2016. Evidence for parasite-mediated selection during short-lasting toxic algal blooms. Proc. R. Soc. B 283 : 20161870. doi: 10.1098/rspb.2016.1870.

Amiraux, R., C. Jeanthon, F. Vaultier & J.-F. Rontani. 2016. Paradoxical effects of temperature and solar irradiance on the photodegradation state of killed phytoplankton. J. Phycol. 52 : 475-485.doi: 10.1111/jpy.12410.

Not, F., I. Probert, C. Gerikas Ribeiro, K. Crenn, L. Guillou, C. Jeanthon & D. Vaulot. 2016. Photosymbiosis in marine pelagic environments, pp. 305-332. In The Marine Microbiome-An Untapped Source of Biodiversity and Biotechnological Potential, L.J. Stal & M. S. Cretoiu (eds), Springer.

Lepelletier, F., S. A. Karpov, E. Alacid, S. Le Panse, E. Bigeard, E. Garcès, C. Jeanthon & L. Guillou. 2014. Dinomyces arenysensis gen. et sp. nov. (Rhizophydiales, Dinomycetaceae fam. nov.), a chytrid infecting marine dinoflagellates. Protist 165: 230-244.

Lepelletier, F., S. A. Karpov, S. Le Panse, E. Bigeard, A. Skovgaard, C. Jeanthon & L. Guillou. 2014. Parvilucifera rostrata sp. nov. (Perkinsozoa), a novel parasitoid that infects planktonic dinoflagellates. Protist 165: 31-49.

Passarelli, C., T. Meziane, N. Thiney, D. Bœuf, B. Jesus, M. Ruivo, C. Jeanthon & C. Hubas. 2015. Seasonal variations of the composition of microbial biofilms in tidal flats: Focus of fatty acids, pigments and exopolymers. Est. Coast. Shelf Sci. 153 : 29-37.

Leroy, F., P. Riera, C. Jeanthon, F. Edmond, C. Leroux & T. Comtet. 2012. Importance of bacterivory and preferential selection toward diatoms in larvae of Crepidula fornicata (L.) assessed by a dual stable isotope (13C, 15N) labeling approach. J. Sea Res. 70:  23-31.


Kopf, A., M. Bicak, R. Kottmann, J. Schnetzer, I. Kostadinov, K. Lehmann, A. Fernandez-Guerra, C. Jeanthon et al. 2015. The Ocean Sampling Day consortium. GigaScience 4 : 27.

Davies, N., D.Field, L. Amaral-Zettler, M. S. Clark, J. Deck, A. Drummond, D. P. Faith, J. Geller, J. Gilbert, F. O. Glöckner, P. R. Hirsch, J-A. Leong, C. Meyer, M. Obst, S. Planes, C. Scholin, A. P. Vogler, R. D. Gates, R. Toonen, V. Berteaux-Lecellier, M. Barbier, K. Barker, S. Bertilsson, M. Bicak, M. J. Bietz, J. Bobe, L. Bodrossy, A. Borja, J. Coddington, J. Fuhrman, G.Gerdts, R. Gillespie, K. Goodwin, P. C. Hanson, J-M. Hero, D. Hoekman, J. Jansson, C. Jeanthon, R. Kao, A. Klindworth, R. Knight, R. Kottmann, M. S. Koo, G. Kotoulas, A. J. Low, V. T. Marteinsson, F. Meyer, N. Morrison, D. D. Myrold, E. Pafilis, S. Parker, J. J. Parnell, P. N. Polymenakou, S. Ratnasingham, G. K. Roderick, N. Rodriguez-Ezpeleta, K. Schonrogge, N. Simon, N. J. Valette-Silver, Y. P. Springer, G. N Stone, S. Stones-Havas, S-A. Sansone, K. M. Thibault, P. Wecker, A. Wichels, J. C. Wooley, T. Yahara, A. Zingone & GOs-COS. 2014. The founding charter of the genomic observatories network. GigaScience 3:2 DOI: 10.1186/2047-217X-3-2.