Evidence map›Paper›PMID 24553472›Full record

ArticleThe ISME journal2014

Differential contributions of archaeal ammonia oxidizer ecotypes to nitrification in coastal surface waters.

Jason M Smith, Karen L Casciotti, Francisco P Chavez, Christopher A Francis

Abstract read
In one paragraph

Article in The ISME journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–field-weighted citation impact
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

26 citing papers in PubMed.

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  17. Nitrogen Metabolism Genes from Temperate Marine Sediments.Marine biotechnology (New York, N.Y.) · 2017
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  18. Article
  19. Article
  20. Influence of ammonia oxidation rate on thaumarchaeal lipid composition and the TEX86 temperature proxy.Proceedings of the National Academy of Sciences of the United States of America · 2016
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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

4 authors.

Jason M SmithDepartment of Environmental Earth System Science, Stanford University, Stanford, CA, USA.
Karen L CasciottiDepartment of Environmental Earth System Science, Stanford University, Stanford, CA, USA.
Francisco P ChavezMonterey Bay Aquarium Research Institute, Moss Landing, CA, USA.
Christopher A FrancisDepartment of Environmental Earth System Science, Stanford University, Stanford, CA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The occurrence of nitrification in the oceanic water column has implications extending from local effects on the structure and activity of phytoplankton communities to broader impacts on the speciation of nitrogenous nutrients and production of nitrous oxide. The ammonia-oxidizing archaea, responsible for carrying out the majority of nitrification in the sea, are present in the marine water column as two taxonomically distinct groups. Water column group A (WCA) organisms are detected at all depths, whereas Water column group B (WCB) are present primarily below the photic zone. An open question in marine biogeochemistry is whether the taxonomic definition of WCA and WCB organisms and their observed distributions correspond to distinct ecological and biogeochemical niches. We used the natural gradients in physicochemical and biological properties that upwelling establishes in surface waters to study their roles in nitrification, and how their activity--ascertained from quantification of ecotype-specific ammonia monooxygenase (amoA) genes and transcripts--varies in response to environmental fluctuations. Our results indicate a role for both ecotypes in nitrification in Monterey Bay surface waters. However, their respective contributions vary, due to their different sensitivities to surface water conditions. WCA organisms exhibited a remarkably consistent level of activity and their contribution to nitrification appears to be related to community size. WCB activity was less consistent and primarily constrained to colder, high nutrient and low chlorophyll waters. Overall, the results of our characterization yielded a strong, potentially predictive, relationship between archaeal amoA gene abundance and the rate of nitrification.

Indexed as

EcotypeNitrificationAmmoniaArchaeaGenes, ArchaealOxidation-ReductionOxidoreductasesSeawaterTranscription, GeneticAmmoniaammonia monooxygenaseOxidoreductases

Identifiers

PMID24553472
PMCPMC4817602

What OpenQuestion holds

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Registered trials

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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.