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Étude de la structuration des communautés procaryotes des drainages miniers acides par le séquençage haut débit

Abstract : The study of prokaryotic communities is an important part of microbial ecology. Processes that structure communities are of two types: stochastic with random dispersal events of birth and death; and deterministic with the habitat selection and interactions between microorganisms. The power of sequencing technologies and computer processing currently allow to enrich our knowledge of these processes. We performed a comparative study of twelve locations from acid mine drainage (AMD) from three regions: the south-east of France, south-west of the iberian peninsula and Bolivia. We have shown the importance of habitat filter on the structure of prokaryotic communities whose majority are specific to this environment, as well as an uncharacterized archaea richnesse. The study of a co-occurrence network suggests a special relationship between certain microorganisms. Finally the study of the diversity of arsenic membrane transporters ArsB and Acr3 shows patterns of population exchange between communities of DMA.
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https://tel.archives-ouvertes.fr/tel-01111065
Contributor : Fabien Javerliat <>
Submitted on : Thursday, January 29, 2015 - 3:14:12 PM
Last modification on : Friday, January 15, 2021 - 9:24:19 AM
Long-term archiving on: : Wednesday, May 27, 2015 - 2:00:51 PM

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  • HAL Id : tel-01111065, version 1

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Fabien Javerliat. Étude de la structuration des communautés procaryotes des drainages miniers acides par le séquençage haut débit. Biodiversité et Ecologie. Université de Pau et des Pays de l'Adour, 2014. Français. ⟨tel-01111065⟩

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