Heterotrophic Foraminifera Capable of Inorganic Nitrogen Assimilation Article Swipe
Clare Bird
,
Charlotte LeKieffre
,
Thierry Jauffrais
,
Anders Meibom
,
Emmanuelle Geslin
,
Helena L. Filipsson
,
Olivier Maire
,
A. D. Russell
,
Jennifer S. Fehrenbacher
·
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.3389/fmicb.2020.604979
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.3389/fmicb.2020.604979
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 ( 15 N-ammonium and 13 C-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 13 C-bicarbonate. However, both species assimilated dissolved 15 N-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.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3389/fmicb.2020.604979
- OA Status
- gold
- Cited By
- 14
- References
- 76
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3108105164
All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W3108105164Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3389/fmicb.2020.604979Digital Object Identifier
- Title
-
Heterotrophic Foraminifera Capable of Inorganic Nitrogen AssimilationWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2020Year of publication
- Publication date
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2020-12-03Full publication date if available
- Authors
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Clare Bird, Charlotte LeKieffre, Thierry Jauffrais, Anders Meibom, Emmanuelle Geslin, Helena L. Filipsson, Olivier Maire, A. D. Russell, Jennifer S. FehrenbacherList of authors in order
- Landing page
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https://doi.org/10.3389/fmicb.2020.604979Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.3389/fmicb.2020.604979Direct OA link when available
- Concepts
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Assimilation (phonology), Heterotroph, Ammonium, Biology, Nitrogen cycle, Foraminifera, Nitrogen assimilation, Benthic zone, Environmental chemistry, Botany, Nitrogen, Chemistry, Ecology, Bacteria, Philosophy, Linguistics, Organic chemistry, GeneticsTop concepts (fields/topics) attached by OpenAlex
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14Total citation count in OpenAlex
- Citations by year (recent)
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2025: 3, 2024: 5, 2023: 1, 2022: 3, 2021: 2Per-year citation counts (last 5 years)
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76Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.did | 133 |
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| abstract_inverted_index.some | 167 |
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| abstract_inverted_index.such | 12 |
| abstract_inverted_index.that | 164 |
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| abstract_inverted_index.(DIN) | 188 |
| abstract_inverted_index.(TEM) | 85 |
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| abstract_inverted_index.Using | 70 |
| abstract_inverted_index.cell. | 160 |
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| abstract_inverted_index.bacteria | 22 |
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| abstract_inverted_index.electron | 83 |
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| abstract_inverted_index.secondary | 89 |
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| abstract_inverted_index.(NanoSIMS) | 93 |
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| abstract_inverted_index.assimilate | 135 |
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| abstract_inverted_index.ubiquitous | 58 |
| abstract_inverted_index.Globigerina | 119 |
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| abstract_inverted_index.transmission | 82 |
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| abstract_inverted_index.assimilation. | 69 |
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| abstract_inverted_index.foraminifera; | 108 |
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| corresponding_author_ids | https://openalex.org/A5011194554 |
| countries_distinct_count | 7 |
| institutions_distinct_count | 9 |
| corresponding_institution_ids | https://openalex.org/I12093191, https://openalex.org/I98677209 |
| sustainable_development_goals[0].id | https://metadata.un.org/sdg/14 |
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| sustainable_development_goals[0].display_name | Life below water |
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| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | False |