Dr Sophie Bonnet

Principal investigator of HOPE

Short biography

My research focuses on the interactions between marine micro-organisms and nitrogen and carbon biogeochemical cycles, both from the perspective of the fundamental oceanography but also to contribute to design solutions which are adapted to the challenges that humans and the planet are facing, especially in southern countries. 

My current research interests include the Magnitude, Control and Fate of N2 fixation in the ocean. My scientific approach is interdisciplinary, integrating different scales, from the single-cell (cell specific activities of marine microbes) to the ecosystem approach (biogeochemical budgets) during field expeditions. I also devote time to initiate and develop marine microbe strain collections to perform both microbial research and complement field studies, and look for high added-value products for the development in southern countries.

Informations

Position
Senior scientist (Directrice de recherche, DR1 HDR)
Affiliation
IRD, Mediterranean Institute of Oceanography (MIO)
Location
Marseille, France & Noumea, New Caledonia

Curriculum Vitae

Publications

Accepted publications

Under revision in Frontiers in Marine Science, 2024
Iron-binding by dissolved organic matter in the Western Tropical South Pacific Ocean (GEOTRACES cruise GPpr14)

Mahieu, L., Whitby, H., Dulaquais, G., Tilliette, C., Guigue, C., Tedetti, M., Lefevre, D., Fourrier, P., Bressac, M., Sarthou, G., Bonnet, S., Guieu, C. and Salaun, P.

Read the paper online
Earth System Science Data, 2024
First release of the Pelagic Size Structure database: global datasets of marine size spectra obtained from plankton imaging devices.

Dugenne, M., Corrales-Ugalde, M., Luo, J.Y.... Bonnet, S.... and Vilain, M.

Read the paper online
Frontiers in Marine Science, 2024.
Composition of the sinking particle flux in a hot spot of dinitrogen fixation revealedt hrough polyacrylamide gel traps.

Ababou, F.E, Le Moigne, F.A.C, Cornet, V, Taillandier, V. and Bonnet, S.

Read the paper online
FEMS Microbiology Ecology. Accepted​, 2024.
Fronts divide diazotroph communities in the Southern Indian Ocean.

Chowdhury, S., Berthelot, H., Baudet, C., Gonzalez-Santana, D., Reeder, C., L’Helguen, S., Maguer, JF., Loscher, C., Singh, A., Blain, S., Cassar, N., Bonnet, S., Planquette, H., Benavides, M.

The ISME Journal, Volume 17, 2023 - The ISME Journal Best Paper Award 2023
Diazotrophs are overlooked contributors to carbon and nitrogen export to the deep ocean.

Bonnet, S., Benavides, M., Le Moigne, F.A.C, Camps, M., Torremocha, A., Grosso, O., Dimier, C., Spungin, D., Berman-Frank, Garczarek, L. Cornejo-Castillo, F.

Read the paper online

Other projects

Tonga

Shallow hydroThermal sOurces of trace elemeNts: potential impacts on biological productivity and the bioloGicAl carbon pump

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Outpace

Interactions between planktonic organisms and biogeochemical cycles across trophic and N2 fixation gradients in the western tropical South Pacific Ocean: a multidisciplinary approach

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Vahine

Biogeochemical and biological response to a diazotroph bloom in a low-nutrient, low-chlorophyll ecosystem: results from the VAHINE mesocosms experiment

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Diazotroph culture collection

Isolating new strains of diazotrophs for both academic and applied research purposes.

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