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Enthusiastic about the idea of exploring the chemistry of natural substances and chemical ecology, I am currently working on a CIFRE thesis between the Roullier Group’s Global Innovation Centre (Saint-Malo) and the Muséum National d’Histoire Naturelle (Paris). Among the solutions developed by the agricultural industry to alleviate the abiotic and biotic stresses on plants are extracts of algae, particularly brown algae. Ascophyllum nodosum is one of the most widely represented species and is used by the Roullier Group in its technical solutions for farmers. Macroalgae have fascinating interactions with the microbial communities associated with them. Numerous studies have shown that these interactions are crucial toRead More →

My name is Maëlle Zonnequin and I’m a second-year PhD student at the Laboratory of Integrative Biology of Marine Models (LBI2M) at the Station Biologique de Roscoff. I’m particularly interested in understanding how brown algae interact with other organisms in the marine ecosystem.Throughout evolution, biotic interactions have probably played a key role in the metabolic plasticity and adaptation of species. In my thesis, I am focusing on the function and evolutionary origin of the oxylipin pathway in biotic interactions in brown algae. More specifically, I am testing the hypothesis of functional coevolution between two closely related brown algae: a host belonging to the family LaminarialesRead More →

My name is Wendy Diruit and I’m a 3rd year PhD student at the Marine Environmental Sciences Laboratory (LEMAR). I’ve been fascinated by the marine environment, foreshore and macroalgae for years, and I’m lucky enough to be doing a PhD project that combines field sampling and optical image analysis to study macroalgae in Brittany. To do this, I carried out an inventory of the flora of 9 foreshores in Finistère and, at the same time, I obtained multispectral satellite images as well as hyperspectral images from planes and drones of my study sites. The hyperspectral images, with their high spatial and spectral resolution, enabled meRead More →

Fascinated for years by marine sciences, and more particularly by the study and valorisation of macroalgae, I am currently working on a CIFRE PhD thesis in partnership with an academic supervisor, the Laboratory of Environmental Marine Sciences (LEMAR) and an industrial supervisor, the SME ALGAIA. In response to the proliferation of temperate and tropical brown macroalgae of the genus Sargassum C. Agardh (Phaeophyceae, Fucales) on the coasts of the Atlantic Ocean, my PhD project VALSARG focuses on the valorisation of this biomass in two application sectors, plant and human health, through a study of their potential in biostimulation and modulation of bacterial flora. The resultsRead More →