Evidence map›Paper›PMID 24477197›Full record

ArticleThe ISME journal2014

Ecogenomic sensor reveals controls on N2-fixing microorganisms in the North Pacific Ocean.

Julie C Robidart, Matthew J Church, John P Ryan, François Ascani, Samuel T Wilson, Deniz Bombar, Roman Marin, Kelvin J Richards, David M Karl, Christopher A Scholin and 1 more

Abstract read
PubMed Full text at PMC Publisher
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 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

20 citing papers in PubMed.

  1. Article
  2. ISME communications · 2025
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  4. Review
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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

11 authors.

Julie C Robidart1] Department of Ocean Sciences, University of California Santa Cruz, Santa Cruz, CA, USA [2] Monterey Bay Aquarium Research Institute, Moss Landing, CA, USA [3] Center for Microbial Oceanography: Research and Education, University of Hawaii, Honolulu, HI, USA.
Matthew J Church1] Center for Microbial Oceanography: Research and Education, University of Hawaii, Honolulu, HI, USA [2] Department of Oceanography, University of Hawaii, Honolulu, HI, USA.
John P RyanMonterey Bay Aquarium Research Institute, Moss Landing, CA, USA.
François Ascani1] Center for Microbial Oceanography: Research and Education, University of Hawaii, Honolulu, HI, USA [2] Department of Oceanography, University of Hawaii, Honolulu, HI, USA.
Samuel T Wilson1] Center for Microbial Oceanography: Research and Education, University of Hawaii, Honolulu, HI, USA [2] Department of Oceanography, University of Hawaii, Honolulu, HI, USA.
Deniz Bombar1] Department of Ocean Sciences, University of California Santa Cruz, Santa Cruz, CA, USA [2] Center for Microbial Oceanography: Research and Education, University of Hawaii, Honolulu, HI, USA.
Roman MarinMonterey Bay Aquarium Research Institute, Moss Landing, CA, USA.
Kelvin J Richards1] Center for Microbial Oceanography: Research and Education, University of Hawaii, Honolulu, HI, USA [2] Department of Oceanography, University of Hawaii, Honolulu, HI, USA.
David M Karl1] Center for Microbial Oceanography: Research and Education, University of Hawaii, Honolulu, HI, USA [2] Department of Oceanography, University of Hawaii, Honolulu, HI, USA.
Christopher A Scholin1] Monterey Bay Aquarium Research Institute, Moss Landing, CA, USA [2] Center for Microbial Oceanography: Research and Education, University of Hawaii, Honolulu, HI, USA.
Jonathan P Zehr1] Department of Ocean Sciences, University of California Santa Cruz, Santa Cruz, CA, USA [2] Center for Microbial Oceanography: Research and Education, University of Hawaii, Honolulu, HI, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nitrogen-fixing microorganisms (diazotrophs) are keystone species that reduce atmospheric dinitrogen (N2) gas to fixed nitrogen (N), thereby accounting for much of N-based new production annually in the oligotrophic North Pacific. However, current approaches to study N2 fixation provide relatively limited spatiotemporal sampling resolution; hence, little is known about the ecological controls on these microorganisms or the scales over which they change. In the present study, we used a drifting robotic gene sensor to obtain high-resolution data on the distributions and abundances of N2-fixing populations over small spatiotemporal scales. The resulting measurements demonstrate that concentrations of N2 fixers can be highly variable, changing in abundance by nearly three orders of magnitude in less than 2 days and 30 km. Concurrent shipboard measurements and long-term time-series sampling uncovered a striking and previously unrecognized correlation between phosphate, which is undergoing long-term change in the region, and N2-fixing cyanobacterial abundances. These results underscore the value of high-resolution sampling and its applications for modeling the effects of global change.

Indexed as

Nitrogen FixationBacteriaCyanobacteriaGenomicsPacific OceanPolymerase Chain ReactionRoboticsSeawater

Identifiers

PMID24477197
PMCPMC4030237

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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.