Widespread occurrence of nitrate storage and denitrification among Foraminifera and Gromiida
| Autor: | Lars Peter Nielsen, Elisa Piña-Ochoa, Frans Jorissen, Nils Risgaard-Petersen, Emmanuelle Geslin, Signe Høgslund, Søren Rysgaard, Tomas Cedhagen, Magali Schweizer, Niels Peter Revsbech |
|---|---|
| Přispěvatelé: | Laboratoire de Planétologie et Géodynamique - Angers (LPG-ANGERS), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Geological Institute (ETHZ), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), CEOS, University of Manitoba [Winnipeg], Aarhus University [Aarhus] |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
0106 biological sciences
Denitrification 010504 meteorology & atmospheric sciences Gromia Foraminifera Nitrogen cycle 01 natural sciences Evolution Molecular chemistry.chemical_compound Nitrate Species Specificity 14. Life underwater eukaryotic nitrate respiration Phylogeny 0105 earth and related environmental sciences Multidisciplinary Nitrates biology Ecology 010604 marine biology & hydrobiology Aquatic ecosystem fungi Rhizaria Biological Sciences biology.organism_classification chemistry Benthic zone [SDU]Sciences of the Universe [physics] |
| Zdroj: | Proceedings of the National Academy of Sciences of the United States of America Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2010, 107 (3), pp.1148-1153. ⟨10.1073/pnas.0908440107⟩ Ochoa, E P, Høgslund, S, Geslin, E, Cedhagen, T, Revsbech, N P, Nielsen, L P, Magali Schweizer, M, Jorissen, F, Rysgaard, S & Risgaard-Petersen, N 2010, ' Widespread occurrence of nitrate storage and denitrification among Foraminifera and Gromiida ', Proceedings of the National Academy of Sciences of the United States of America, vol. 107, no. 3, pp. 1148-1153 . https://doi.org/10.1073/pnas.0908440107 |
| ISSN: | 0027-8424 1091-6490 |
| DOI: | 10.1073/pnas.0908440107⟩ |
| Popis: | Bentiske foraminifers bebor en bred vifte af vandmiljøer, herunder åbne hav-, brakvand, og ferskvandsområder. Her viser vi, at flere forskellige og forskellige foramini grupper (miliolids, rotaliids, textulariids) og Gromia, en anden taksonomisk gruppe også tilhørerende Rhizaria, akkumulere og respirere nitrat via denitrifikation. Den udbredte forekomst blandt fjernt disse beslægtede organismer, tyder på en gammel oprindelse af disse træk. De forskellige metaboliske kapacitet i disse organismer, som gør dem i stand til at aande med ilt og nitrat og fastholde respiratoriske aktivitet, selv når elektronacceptorer er fraværende fra miljøet, kan være en af grundene til deres succesfulde kolonisering af forskellige marine sedimenter miljøer. Bidraget fra eukaryoter, til fjernelse af kvælstof gennem respiration kan være lige så betydningsfuldt som bakteriel denitrifikation i oceanernes sedimenter. Udgivelsesdato: 19-1-10 Benthic foraminifers inhabit a wide range of aquatic environments including open marine, brackish, and freshwater environments. Here we show that several different and diverse foraminiferal groups (miliolids, rotaliids, textulariids) and Gromia, another taxon also belonging to Rhizaria, accumulate and respire nitrates through denitrification. The widespread occurrence among distantly related organisms suggests an ancient origin of the trait. The diverse metabolic capacity of these organisms, which enables them to respire with oxygen and nitrate and to sustain respiratory activity even when electron acceptors are absent from the environment, may be one of the reasons for their successful colonization of diverse marine sediment environments. The contribution of eukaryotes to the removal of fixed nitrogen by respiration may equal the importance of bacterial denitrification in ocean sediments. |
| Databáze: | OpenAIRE |
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