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Heterotrophic Foraminifera capable of inorganic nitrogen assimilation
| dc.rights.license | open | en_US |
| hal.structure.identifier | Faculty of Natural Sciences [Stirling] | |
| dc.contributor.author | BIRD, Clare | |
| hal.structure.identifier | Laboratoire de Planétologie et Géodynamique [UMR 6112] [LPG] | |
| dc.contributor.author | LEKIEFFRE, Charlotte | |
| hal.structure.identifier | Délégation Ifremer de Nouvelle-Calédonie | |
| dc.contributor.author | JAUFFRAIS, Thierry | |
| hal.structure.identifier | Ecole Polytechnique Fédérale de Lausanne [EPFL] | |
| dc.contributor.author | MEIBOM, Anders | |
| hal.structure.identifier | Laboratoire de Planétologie et Géodynamique [UMR 6112] [LPG] | |
| dc.contributor.author | GESLIN, Emmanuelle | |
| hal.structure.identifier | Department of Geology [Lund] | |
| dc.contributor.author | FILIPSSON, Helena | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | MAIRE, Olivier
IDREF: 111161525 | |
| hal.structure.identifier | Department of Earth and Planetary Sciences [Univ California Davis] [EPS - UC Davis] | |
| dc.contributor.author | RUSSELL, Ann | |
| hal.structure.identifier | College of Earth, Ocean and Atmospheric Sciences [Corvallis] [CEOAS] | |
| dc.contributor.author | FEHRENBACHER, Jennifer | |
| dc.date.accessioned | 2024-04-08T09:23:29Z | |
| dc.date.available | 2024-04-08T09:23:29Z | |
| dc.date.issued | 2020-12-03 | |
| dc.identifier.issn | 1664-302X | en_US |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/194975 | |
| dc.description.abstractEn | Nitrogen availability often limits biological productivity in marine systems, where inorganic nitrogen, such as ammonium is assimilated into the food web by bacteria and photoautotrophic eukaryotes. Recently, ammonium assimilation was observed in kleptoplast-containing protists of the phylum foraminifera, possibly via the glutamine synthetase/glutamate synthase (GS/GOGAT) assimilation pathway imported with the kleptoplasts. However, it is not known if the ubiquitous and diverse heterotrophic protists have an innate ability for ammonium assimilation. Using stable isotope incubations (N-15-ammonium and C-13-bicarbonate) and combining transmission electron microscopy (TEM) with quantitative nanoscale secondary ion mass spectrometry (NanoSIMS) imaging, we investigated the uptake and assimilation of dissolved inorganic ammonium by two heterotrophic foraminifera; a non-kleptoplastic benthic species, Ammonia sp., and a planktonic species, Globigerina bulloides. These species are heterotrophic and not capable of photosynthesis. Accordingly, they did not assimilate C-13-bicarbonate. However, both species assimilated dissolved N-15-ammonium and incorporated it into organelles of direct importance for ontogenetic growth and development of the cell. These observations demonstrate that at least some heterotrophic protists have an innate cellular mechanism for inorganic ammonium assimilation, highlighting a newly discovered pathway for dissolved inorganic nitrogen (DIN) assimilation within the marine microbial loop. | |
| dc.language.iso | EN | en_US |
| dc.rights.uri | http://creativecommons.org/licenses/by/ | |
| dc.subject.en | nitrogen cycle | |
| dc.subject.en | heterotrophic protists | |
| dc.subject.en | foraminifera | |
| dc.subject.en | ammonium assimilation | |
| dc.subject.en | heterotrophy | |
| dc.subject.en | marine | |
| dc.title.en | Heterotrophic Foraminifera capable of inorganic nitrogen assimilation | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.3389/fmicb.2020.604979 | en_US |
| dc.subject.hal | Sciences de l'environnement | en_US |
| bordeaux.journal | Frontiers in Microbiology | en_US |
| bordeaux.page | 604979 | en_US |
| bordeaux.volume | 11 | en_US |
| bordeaux.hal.laboratories | EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | CNRS | en_US |
| bordeaux.team | ECOBIOC | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| bordeaux.import.source | hal | |
| hal.identifier | hal-03118527 | |
| hal.version | 1 | |
| hal.popular | non | en_US |
| hal.audience | Internationale | en_US |
| hal.export | false | |
| workflow.import.source | hal | |
| dc.rights.cc | Pas de Licence CC | en_US |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Frontiers%20in%20Microbiology&rft.date=2020-12-03&rft.volume=11&rft.spage=604979&rft.epage=604979&rft.eissn=1664-302X&rft.issn=1664-302X&rft.au=BIRD,%20Clare&LEKIEFFRE,%20Charlotte&JAUFFRAIS,%20Thierry&MEIBOM,%20Anders&GESLIN,%20Emmanuelle&rft.genre=article |
