Christophe Six

Christophe SIX

Maitre de Conférence HC à Sorbonne Université

Research Areas

My research aims to identify and characterize the physiological mechanisms that have evolved to enable phytoplanktonic organisms to compete successfully within a given ecological niche and to colonize new ones. To achieve this, I use comparative physiology approaches based on phytoplankton strains isolated and maintained in laboratory culture.

Teaching

Half of my working time is devoted to higher education teaching at all university levels, from undergraduate to doctoral studies. I teach subjects related to the ecology, physiology, and evolution of photosynthetic organisms, ranging from microbes to vascular plants. I am involved in around a dozen teaching units within Sorbonne Université degree programs and am (co-)coordinator of six teaching units in the Biology–Mathematics undergraduate program and the Master’s program in Marine Sciences.

Undergraduate level: Terrestrial Plant Botany, Plant Physiology, Plant Ecology.

Master’s level: Fundamental Phycology, Physiology of Marine Plants, Integrative Phytoplankton Biology.

Education

2015  Habilitation to Supervise Research (HDR), Pierre and Marie Curie University (Paris VI)

2008  Appointed Associate Professor (Maître de Conférences), Pierre and Marie Curie University (Paris VI), Section 66 “Physiology”

2005–2007  Postdoctoral Fellowship, Mount Allison University (Canada)

2002–2005  PhD in Marine Biology, Pierre and Marie Curie University (Paris VI)

2001  Master’s Degree in Biological Oceanography and Marine Environment, Pierre and Marie Curie University (Paris VI)

Publications

Unravelling the molecular diversity of marine cyanobacterial communities in the lagoon of Nouméa (New Caledonia): impact of a cyclonic event

Christophe Six, Mathisse Meyneng, Morgane Ratin, Priscilla Gourvil, Raffaele Siano, et al.. Unravelling the molecular diversity of marine cyanobacterial communities in the lagoon of Nouméa (New Caledonia): impact of a cyclonic event. ISME Communications, 2026, 6 (1), ycag032 (14p.). ⟨10.1093/ismeco/ycag032⟩. ⟨hal-05587149⟩

Photophysiology of the haploid form of the cryptophyte Teleaulax amphioxeia

Sarah Garric, Morgane Ratin, Benoit Gallet, Johan Decelle, Ian Probert, et al.. Photophysiology of the haploid form of the cryptophyte Teleaulax amphioxeia. Journal of Phycology, 2024, 60 (5), pp.1220-1236. ⟨10.1111/jpy.13495⟩. ⟨hal-04781170⟩

Impaired photoacclimation in a kleptoplastidic dinoflagellate reveals physiological limits of early stages of endosymbiosis

Sarah Garric, Morgane Ratin, Dominique Marie, Valentin Foulon, Ian Probert, et al.. Impaired photoacclimation in a kleptoplastidic dinoflagellate reveals physiological limits of early stages of endosymbiosis. Current Biology, 2024, 34 (14), pp.3064-3076.e5. ⟨10.1016/j.cub.2024.05.066⟩. ⟨hal-04806523⟩

Global phylogeography of marine Synechococcus in coastal areas reveals strikingly different communities than in the open ocean

Hugo Doré, Jade Leconte, Ulysse Guyet, Solène Breton, Gregory Farrant, et al.. Global phylogeography of marine Synechococcus in coastal areas reveals strikingly different communities than in the open ocean. 2022. ⟨hal-03834030⟩

Global Phylogeography of Marine Synechococcus in Coastal Areas Reveals Strong Community Shifts

Hugo Doré, Jade Leconte, Ulysse Guyet, Solène Breton, Gregory Farrant, et al.. Global Phylogeography of Marine Synechococcus in Coastal Areas Reveals Strong Community Shifts. mSystems, 2022, 7 (6), ⟨10.1128/msystems.00656-22⟩. ⟨hal-03971550v2⟩

Marine Synechococcus Picocyanobacteria: Light Utilization Across Latitudes

Christophe Six, Morgane Ratin, Dominique Marie, Erwan Corre. Marine Synechococcus Picocyanobacteria: Light Utilization Across Latitudes. Proceedings of the National Academy of Sciences of the United States of America, 2021, 118 (38), pp.e2111300118. ⟨10.1073/pnas.2111300118⟩. ⟨hal-03360215⟩