Evidence map›Paper›PMID 35389175›Full record

ArticlePhotosynthesis research2022

The redox state of the plastoquinone (PQ) pool is connected to thylakoid lipid saturation in a marine diatom.

Kuan Yu Cheong, Juliette Jouhet, Eric Maréchal, Paul G Falkowski

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in Photosynthesis research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.0field-weighted citation impact, top 27% 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

2 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Review
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 at 2 institutions in 2 countries.

Kuan Yu CheongEnvironmental Biophysics and Molecular Ecology Program, Department of Marine and Coastal Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA.ORCID http://orcid.org/0000-0002-9118-5797
Juliette JouhetLaboratoire de Physiologie Cellulaire et Végétale, Unité Mixte Recherche 5168, Centre National Recherche Scientifique, Commissariat à l'Energie Atomique et aux Energies Alternatives, INRAE, Université Grenoble Alpes, 5168, Grenoble Cedex 9, France.
Eric MaréchalLaboratoire de Physiologie Cellulaire et Végétale, Unité Mixte Recherche 5168, Centre National Recherche Scientifique, Commissariat à l'Energie Atomique et aux Energies Alternatives, INRAE, Université Grenoble Alpes, 5168, Grenoble Cedex 9, France.
Paul G FalkowskiEnvironmental Biophysics and Molecular Ecology Program, Department of Marine and Coastal Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA. falko@marine.rutgers.edu.ORCID http://orcid.org/0000-0002-2353-1969
Commissariat à l'Énergie Atomique et aux Énergies Alternatives · FRRutgers, The State University of New Jersey · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The redox state of the plastoquinone (PQ) pool is a known sensor for retrograde signaling. In this paper, we asked, "does the redox state of the PQ pool modulate the saturation state of thylakoid lipids?" Data from fatty acid composition and mRNA transcript abundance analyses suggest a strong connection between these two aspects in a model marine diatom. Fatty acid profiles of Phaeodactylum tricornutum exhibited specific changes when the redox state of the PQ pool was modulated by light and two chemical inhibitors [3-(3,4-dichlorophenyl)-1,1-dimethylurea (DCMU) or 2,5-dibromo-3-methyl-6-isopropyl-p-benzoquinone (DBMIB)]. Data from liquid chromatography with tandem mass spectrometry (LC-MS/MS) indicated a ca. 7-20% decrease in the saturation state of all four conserved thylakoid lipids in response to an oxidized PQ pool. The redox signals generated from an oxidized PQ pool in plastids also increased the mRNA transcript abundance of nuclear-encoded C16 fatty acid desaturases (FADs), with peak upregulation on a timescale of 6 to 12 h. The connection between the redox state of the PQ pool and thylakoid lipid saturation suggests a heretofore unrecognized retrograde signaling pathway that couples photosynthetic electron transport and the physical state of thylakoid membrane lipids.

Indexed as

DiatomsPlastoquinoneBenzoquinonesChromatography, LiquidDibromothymoquinoneDiuronElectron TransportFatty Acid DesaturasesFatty AcidsLightLipidsOxidation-ReductionRNA, MessengerTandem Mass SpectrometryThylakoids2-methyl-1,4-benzoquinoneBenzoquinonesDibromothymoquinoneDiuronFatty Acid DesaturasesFatty AcidsLipidsPlastoquinoneRNA, MessengerDiatomLipid saturationPQ poolRedox stateRetrograde signalingThylakoid membrane

Identifiers

PMID35389175
OpenAlexW4226175394

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.