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Metaproteogenomic Profiling of Microbial Communities Colonizing Actively Venting Hydrothermal Chimneys.
Pjevac, Petra; Meier, Dimitri V; Markert, Stephanie; Hentschker, Christian; Schweder, Thomas; Becher, Dörte; Gruber-Vodicka, Harald R; Richter, Michael; Bach, Wolfgang; Amann, Rudolf; Meyerdierks, Anke.
Afiliación
  • Pjevac P; Department of Molecular Ecology, Max Planck Institute for Marine Microbiology, Bremen, Germany.
  • Meier DV; Division of Microbial Ecology, Department of Microbiology and Ecosystem Science, University of Vienna, Vienna, Austria.
  • Markert S; Department of Molecular Ecology, Max Planck Institute for Marine Microbiology, Bremen, Germany.
  • Hentschker C; Division of Microbial Ecology, Department of Microbiology and Ecosystem Science, University of Vienna, Vienna, Austria.
  • Schweder T; Institute of Pharmacy, University of Greifswald, Greifswald, Germany.
  • Becher D; Institute of Microbiology, University of Greifswald, Greifswald, Germany.
  • Gruber-Vodicka HR; Institute of Pharmacy, University of Greifswald, Greifswald, Germany.
  • Richter M; Institute of Microbiology, University of Greifswald, Greifswald, Germany.
  • Bach W; Department of Molecular Ecology, Max Planck Institute for Marine Microbiology, Bremen, Germany.
  • Amann R; Department of Symbiosis, Max Planck Institute for Marine Microbiology, Bremen, Germany.
  • Meyerdierks A; Department of Molecular Ecology, Max Planck Institute for Marine Microbiology, Bremen, Germany.
Front Microbiol ; 9: 680, 2018.
Article en En | MEDLINE | ID: mdl-29696004
ABSTRACT
At hydrothermal vent sites, chimneys consisting of sulfides, sulfates, and oxides are formed upon contact of reduced hydrothermal fluids with oxygenated seawater. The walls and surfaces of these chimneys are an important habitat for vent-associated microorganisms. We used community proteogenomics to investigate and compare the composition, metabolic potential and relative in situ protein abundance of microbial communities colonizing two actively venting hydrothermal chimneys from the Manus Basin back-arc spreading center (Papua New Guinea). We identified overlaps in the in situ functional profiles of both chimneys, despite differences in microbial community composition and venting regime. Carbon fixation on both chimneys seems to have been primarily mediated through the reverse tricarboxylic acid cycle and fueled by sulfur-oxidation, while the abundant metabolic potential for hydrogen oxidation and carbon fixation via the Calvin-Benson-Bassham cycle was hardly utilized. Notably, the highly diverse microbial community colonizing the analyzed black smoker chimney had a highly redundant metabolic potential. In contrast, the considerably less diverse community colonizing the diffusely venting chimney displayed a higher metabolic versatility. An increased diversity on the phylogenetic level is thus not directly linked to an increased metabolic diversity in microbial communities that colonize hydrothermal chimneys.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Front Microbiol Año: 2018 Tipo del documento: Article País de afiliación: Alemania

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Front Microbiol Año: 2018 Tipo del documento: Article País de afiliación: Alemania