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Approche métagénomique de la chimiosynthèse en système hydrothermal océanique profond : cas particulier des symbioses bactériennes associées à la crevette Rimicaris exoculata ArchiMer
Jan, Cyrielle.
The hydrothermal shrimp Rimicaris exoculata is an endemic species of the Mid-Atlantic Ridge (MAR).This species lives in dense aggregates on the walls of active chimneys and dominates the megafauna of most of these sites. This shrimp has two distinct microbial communities whose roles remain almost unknown. One of these communities is associated with the cephalothorax and hypertrophied mouthparts.These are covered by a dense community of bacteria affiliated to chemoautotrophic epibionts associated with mineral deposits. To deepen our knowledge on the symbiotic community in the context of the thesis, a metagenomic approach was undertaken. This helped highlighting the microbial diversity present with a dominant phylum, the Proteobacteria. Two classes are...
Tipo: Text Palavras-chave: Epibiontes; Métagénomique; Rimicaris exoculata; Symbiose; Zetaproteobacteria; Symbiosis; Epibionts; Metagenomic.
Ano: 2012 URL: https://archimer.ifremer.fr/doc/00498/60954/64357.pdf
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