Evidence map›Paper›PMID 27935586›Full record

ArticleThe ISME journal2017

Use of plankton-derived vitamin B1 precursors, especially thiazole-related precursor, by key marine picoeukaryotic phytoplankton.

Ryan W Paerl, Francois-Yves Bouget, Jean-Claude Lozano, Valérie Vergé, Philippe Schatt, Eric E Allen, Brian Palenik, Farooq Azam

Open access · hybridAbstract read
In one paragraph

Article in The ISME journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
8.0field-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

36 citing papers in PubMed, 64 citations in OpenAlex.

  1. Vesicle-associated exudates fromApplied and environmental microbiology · 2026
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  14. Exchange of Vitamin BJournal of bacteriology · 2022
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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

8 authors at 3 institutions in 2 countries.

Ryan W PaerlMarine Biology Research Division, Scripps Institution of Oceanography, University of California at San Diego, La Jolla, CA, USA.
Francois-Yves BougetSorbonne Universités, Université Pierre and Marie Curie (Paris 06), UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, Banyuls-sur-Mer, France.
Jean-Claude LozanoSorbonne Universités, Université Pierre and Marie Curie (Paris 06), UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, Banyuls-sur-Mer, France.
Valérie VergéSorbonne Universités, Université Pierre and Marie Curie (Paris 06), UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, Banyuls-sur-Mer, France.
Philippe SchattSorbonne Universités, Université Pierre and Marie Curie (Paris 06), UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, Banyuls-sur-Mer, France.
Eric E AllenMarine Biology Research Division, Scripps Institution of Oceanography, University of California at San Diego, La Jolla, CA, USA.
Brian PalenikMarine Biology Research Division, Scripps Institution of Oceanography, University of California at San Diego, La Jolla, CA, USA.
Farooq AzamMarine Biology Research Division, Scripps Institution of Oceanography, University of California at San Diego, La Jolla, CA, USA.
Sorbonne Université · FRUniversity of California, San Diego · USScripps Institution of Oceanography · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Several cosmopolitan marine picoeukaryotic phytoplankton are B1 auxotrophs requiring exogenous vitamin B1 or precursor to survive. From genomic evidence, representatives of picoeukaryotic phytoplankton (Ostreococcus and Micromonas spp.) were predicted to use known thiazole and pyrimidine B1 precursors to meet their B1 demands, however, recent culture-based experiments could not confirm this assumption. We hypothesized these phytoplankton strains could grow on precursors alone, but required a thiazole-related precursor other the well-known and extensively tested 4-methyl-5-thiazoleethanol. This hypothesis was tested using bioassays and co-cultures of picoeukaryotic phytoplankton and bacteria. We found that specific B1-synthesizing proteobacteria and phytoplankton are sources of a yet-to-be chemically identified thiazole-related precursor(s) that, along with pyrimidine B1 precursor 4-amino-5-hydroxymethyl-2-methylpyrimidine, can support growth of Ostreococcus spp. (also Micromonas spp.) without B1. We additionally found that the B1-synthesizing plankton do not require contact with picoeukaryotic phytoplankton cells to produce thiazole-related precursor(s). Experiments with wild-type and genetically engineered Ostreococcus lines revealed that the thiazole kinase, ThiM, is required for growth on precursors, and that thiazole-related precursor(s) accumulate to appreciable levels in the euphotic ocean. Overall, our results point to thiazole-related B1 precursors as important micronutrients promoting the survival of abundant phytoplankton influencing surface ocean production and biogeochemical cycling.

Indexed as

ChlorophytaEukaryotaPlanktonPyrimidinesThiamineThiazoles4-amino-5-hydroxymethyl-2-methylpyrimidinePyrimidinesThiamineThiazoles

Identifiers

PMID27935586
PMCPMC5322297
OpenAlexW2560034796

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.