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Phylogenetic identification of marine bacteria isolated from deep-sea sediments of the eastern South Atlantic Ocean

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Phylogenetic identification of marine bacteria isolated from deep-sea sediments of the eastern South Atlantic Ocean

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Título Phylogenetic identification of marine bacteria isolated from deep-sea sediments of the eastern South Atlantic Ocean
Autor Silva, Marcus Adonai Castro da
Cavalett, Angélica
Spinner, Ananda de Almeida
Rosa, Daniele Cristina
Jasper, Regina Beltrame
Verdi, Maria Carolina Quecine
Bonatelli, Maria Letícia
Pizzirani-Kleiner, Aline Aparecida
Corção, Gertrudes
Lima, André Oliveira de Souza
Abstract The deep-sea environments of the South Atlantic Ocean are less studied in comparison to the North Atlantic and Pacific Oceans. With the aim of identifying the deep-sea bacteria in this less known ocean, 70 strains were isolated from eight sediment samples (depth range between 1905 to 5560 m) collected in the eastern part of the South Atlantic, from the equatorial region to the Cape Abyssal Plain, using three different culture media. The strains were classified into three phylogenetic groups, Gammaproteobacteria, Firmicutes and Actinobacteria, by the analysis of 16s rRNA gene sequences. Gammaproteobacteria and Firmicutes were the most frequently identified groups, with Halomonas the most frequent genus among the strains. Microorganisms belonging to Firmicutes were the only ones observed in all samples. Sixteen of the 41 identified operational taxonomic units probably represent new species. The presence of potentially new species reinforces the need for new studies in the deep-sea environments of the South Atlantic.
Contido em Springer plus. Switzerland. Vol. 2 (22 Mar. 2013), p. 127 [10 p.]
Assunto Atlântico Sul, Oceano
Bactérias
Filogenia
Halomonas
Microbiologia marinha
[en] Cultivable bacteria
[en] Deep-sea sediments
[en] Halomonas
[en] Phylogenetic identification
[en] South Atlantic Ocean
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/110244
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