Evidence map›Paper›PMID 33318211›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

Vitamin B

Felix J Elling, Jordon D Hemingway, Thomas W Evans, Jenan J Kharbush, Eva Spieck, Roger E Summons, Ann Pearson

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.4field-weighted citation impact, top 21% 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

9 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
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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

7 authors at 3 institutions in 2 countries.

Felix J EllingDepartment of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138; felix_elling@fas.harvard.edu.ORCID 0000-0003-0405-4033
Jordon D HemingwayDepartment of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138.ORCID 0000-0002-8299-2255
Thomas W EvansDepartment of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139.
Jenan J KharbushDepartment of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138.
Eva SpieckDepartment of Microbiology and Biotechnology, University of Hamburg, 22609 Hamburg, Germany.ORCID 0000-0002-4390-6086
Roger E SummonsDepartment of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139.ORCID 0000-0002-7144-8537
Ann PearsonDepartment of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138.
Planetary Science Institute · USMassachusetts Institute of Technology · USUniversität Hamburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bacterial hopanoid lipids are ubiquitous in the geologic record and serve as biomarkers for reconstructing Earth's climatic and biogeochemical evolution. Specifically, the abundance of 2-methylhopanoids deposited during Mesozoic ocean anoxic events (OAEs) and other intervals has been interpreted to reflect proliferation of nitrogen-fixing marine cyanobacteria. However, there currently is no conclusive evidence for 2-methylhopanoid production by extant marine cyanobacteria. As an alternative explanation, here we report 2-methylhopanoid production by bacteria of the genus

Indexed as

NitrificationAmmoniaMethionineNitrobacterOxygenPentacyclic TriterpenesPlanktonSeawaterVitamin B 12AmmoniaMethionineOxygenPentacyclic TriterpenesVitamin B 12biomarkercobalaminhopanoidsnitrificationoceanic anoxic event

Identifiers

PMID33318211
PMCPMC7777029
OpenAlexW3111663336

What OpenQuestion holds

Textmetadata
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.