Evidence map›Paper›PMID 31336026›Full record

ArticleEnvironmental microbiology2019

Ammonia-oxidizing archaea release a suite of organic compounds potentially fueling prokaryotic heterotrophy in the ocean.

Barbara Bayer, Roberta L Hansman, Meriel J Bittner, Beatriz E Noriega-Ortega, Jutta Niggemann, Thorsten Dittmar, Gerhard J Herndl

Open access · hybridAbstract read
In one paragraph

Article in Environmental microbiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
8.5field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 119 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Nitrous oxide production via enzymatic nitroxyl from the nitrifying archaeonProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 5 countries.

Barbara BayerDivision of Bio-Oceanography, Department of Limnology and Bio-Oceanography, Centre of Functional Ecology, University of Vienna, Vienna, 1090, Austria.ORCID 0000-0003-3968-5804
Roberta L HansmanDivision of Bio-Oceanography, Department of Limnology and Bio-Oceanography, Centre of Functional Ecology, University of Vienna, Vienna, 1090, Austria.
Meriel J BittnerDivision of Bio-Oceanography, Department of Limnology and Bio-Oceanography, Centre of Functional Ecology, University of Vienna, Vienna, 1090, Austria.
Beatriz E Noriega-OrtegaICBM-MPI Bridging Group for Marine Geochemistry, University of Oldenburg, 26129, Oldenburg, Germany.
Jutta NiggemannICBM-MPI Bridging Group for Marine Geochemistry, University of Oldenburg, 26129, Oldenburg, Germany.
Thorsten DittmarICBM-MPI Bridging Group for Marine Geochemistry, University of Oldenburg, 26129, Oldenburg, Germany.
Gerhard J HerndlDivision of Bio-Oceanography, Department of Limnology and Bio-Oceanography, Centre of Functional Ecology, University of Vienna, Vienna, 1090, Austria.ORCID 0000-0002-2223-2852
University of Vienna · ATCarl von Ossietzky Universität Oldenburg · DE

Funding

Austrian Science Fund P28781-B21Austrian Science Fund W1257-B20Austrian Science Fund FWF P 28781
6 · The paper itself

Abstract

Ammonia-oxidizing archaea (AOA) constitute a considerable fraction of microbial biomass in the global ocean, comprising 20%-40% of the ocean's prokaryotic plankton. However, it remains enigmatic to what extent these chemolithoautotrophic archaea release dissolved organic carbon (DOC). A combination of targeted and untargeted metabolomics was used to characterize the exometabolomes of three model AOA strains of the Nitrosopumilus genus. Our results indicate that marine AOA exude a suite of organic compounds with potentially varying reactivities, dominated by nitrogen-containing compounds. A significant fraction of the released dissolved organic matter (DOM) consists of labile compounds, which typically limit prokaryotic heterotrophic activity in open ocean waters, including amino acids, thymidine and B vitamins. Amino acid release rates corresponded with ammonia oxidation activity and the three Nitrosopumilus strains predominantly released hydrophobic amino acids, potentially as a result of passive diffusion. Despite the low contribution of DOC released by AOA (~0.08%-1.05%) to the heterotrophic prokaryotic carbon demand, the release of physiologically relevant metabolites could be crucial for microbes that are auxotrophic for some of these compounds, including members of the globally abundant and ubiquitous SAR11 clade.

Indexed as

AmmoniaArchaeaCarbonChemoautotrophic GrowthHeterotrophic ProcessesOceans and SeasOrganic ChemicalsOxidation-ReductionPhylogenyAmmoniaCarbonOrganic Chemicals

Identifiers

PMID31336026
PMCPMC6899801
OpenAlexW2963404804

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.