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  Use of carbon monoxide and hydrogen by a bacteria–animal symbiosis from seagrass sediments

Kleiner, M., Wentrup, C., Holler, T., Lavik, G., Harder, J., Lott, C., et al. (2015). Use of carbon monoxide and hydrogen by a bacteria–animal symbiosis from seagrass sediments. Environmental Microbiology, 17: 1, pp. 5023-5035.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-0001-C39F-0 Versions-Permalink: https://hdl.handle.net/21.11116/0000-0006-87E8-C
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 Urheber:
Kleiner, Manuel1, Autor           
Wentrup, Cecilia1, Autor           
Holler, Thomas2, Autor           
Lavik, Gaute3, Autor           
Harder, Jens2, Autor           
Lott, Christian1, Autor           
Littmann, Sten3, Autor           
Kuypers, Marcel M. M.3, Autor           
Dubilier, Nicole1, Autor           
Affiliations:
1Department of Symbiosis, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481699              
2Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481695              
3Department of Biogeochemistry, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481693              

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 Zusammenfassung: The gutless marine worm Olavius algarvensis lives in symbiosis with chemosynthetic bacteria that provide nutrition by fixing carbon dioxide (CO2 ) into biomass using reduced sulfur compounds as energy sources. A recent metaproteomic analysis of the O. algarvensis symbiosis indicated that carbon monoxide (CO) and hydrogen (H2 ) might also be used as energy sources. We provide direct evidence that the O. algarvensis symbiosis consumes CO and H2 . Single cell imaging using nanoscale secondary ion mass spectrometry revealed that one of the symbionts, the γ3-symbiont, uses the energy from CO oxidation to fix CO2 . Pore water analysis revealed considerable in-situ concentrations of CO and H2 in the O. algarvensis environment, Mediterranean seagrass sediments. Pore water H2 concentrations (89-2147 nM) were up to two orders of magnitude higher than in seawater, and up to 36-fold higher than previously known from shallow-water marine sediments. Pore water CO concentrations (17-51 nM) were twice as high as in the overlying seawater (no literature data from other shallow-water sediments are available for comparison). Ex-situ incubation experiments showed that dead seagrass rhizomes produced large amounts of CO. CO production from decaying plant material could thus be a significant energy source for microbial primary production in seagrass sediments.

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Sprache(n): eng - English
 Datum: 2015-07-072015-12-01
 Publikationsstatus: Erschienen
 Seiten: 13
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Interne Begutachtung
 Identifikatoren: eDoc: 716555
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Titel: Environmental Microbiology
  Andere : Environmental Microbiology and Environmental Microbiology Reports
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Oxford, England : Blackwell Science
Seiten: - Band / Heft: 17 Artikelnummer: 1 Start- / Endseite: 5023 - 5035 Identifikator: ISSN: 1462-2912
CoNE: https://pure.mpg.de/cone/journals/resource/959328105031