Microbial life in a fjord: Metagenomic analysis of a microbial mat in Chilean Patagonia

TitleMicrobial life in a fjord: Metagenomic analysis of a microbial mat in Chilean Patagonia
Publication TypeJournal Article
Year of Publication2013
AuthorsUgalde JA, Gallardo M.J, Belmar C., Munoz P., Ruiz-Tagle N., Ferrada-Fuentes S., Espinoza C., Allen EE, Gallardo V.A
JournalPlos One
Date Published2013/08
Type of ArticleArticle
ISBN Number1932-6203
Accession NumberWOS:000323733800021
Keywordsbacteria; database; ecology; genes; genome sequence; oxidation; sea; server; sulfur; viruses

The current study describes the taxonomic and functional composition of metagenomic sequences obtained from a filamentous microbial mat isolated from the Comau fjord, located in the northernmost part of the Chilean Patagonia. The taxonomic composition of the microbial community showed a high proportion of members of the Gammaproteobacteria, including a high number of sequences that were recruited to the genomes of Moritella marina MP-1 and Colwellia psycherythraea 34H, suggesting the presence of populations related to these two psychrophilic bacterial species. Functional analysis of the community indicated a high proportion of genes coding for the transport and metabolism of amino acids, as well as in energy production. Among the energy production functions, we found protein-coding genes for sulfate and nitrate reduction, both processes associated with Gammaproteobacteria-related sequences. This report provides the first examination of the taxonomic composition and genetic diversity associated with these conspicuous microbial mat communities and provides a framework for future microbial studies in the Comau fjord.

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