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Laboratoire d'Ecogéochimie des Environnements Benthiques
UMR 8222

Dimitri Kalenitchenko (2012-2015)

Dynamics of microbial communities associated with the degradation of organic substrates in submarine canyons.

Supervisor : Galand Pierre

Under the Mediterranean climate, rivers can export large amounts of plant debris during floods events, contributing significantly to the transport of organic matter to the sea. The labile organic matter is degraded in coastal waters, while larger organic substrates can be exported to the deep sea.

Organic substrates such as wood have been found in the canyon Lacaze-Duthier off Banyuls sur mer. These woods are characterized by a high diversity of eukaryotes that take advantage of that nutritious oasis..

However, although macrofauna and associated symbionts have been well studied it appears that the basis of these ecosystems, microorganisms, remains largely unknown. My thesis will focus on determining the diversity of microorganisms and metabolic pathways involved in the degradation of wood in marine environments. We use next generation sequencing coupled to environmental parameter measurement performed by colleagues of the LECOB.

Dimitri Kalenitchenko (Dimitri.kalenitchenko @ obs-banyuls.fr) - 10/11/19

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