Evidence map›Paper›PMID 22950756›Full record

ArticleThe Plant journal : for cell and molecular biology2013

Sigma factor-mediated plastid retrograde signals control nuclear gene expression.

Jesse D Woodson, Juan M Perez-Ruiz, Robert J Schmitz, Joseph R Ecker, Joanne Chory

Open access · bronzeAbstract read
In one paragraph

Article in The Plant journal : for cell and molecular biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

100 citing papers in PubMed, 178 citations in OpenAlex.

  1. Article
  2. Genome-Wide Identification of Sigma Factors inInternational journal of molecular sciences · 2026
    Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Regreening mechanisms in cucumber: insights from a CsSIG2 mutation affecting chloroplast development.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025
    Article
  8. Article
  9. Review
  10. Membrane association of active genes organizes the chloroplast nucleoid structure.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  11. Article
  12. Regulation of chloroplast biogenesis, development, and signaling by endogenous and exogenous cues.Physiology and molecular biology of plants : an international journal of functional plant biology · 2024
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

40 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

Jesse D WoodsonPlant Biology Laboratory, The Salk Institute, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.
Juan M Perez-RuizPlant Biology Laboratory, The Salk Institute, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.
Robert J SchmitzPlant Biology Laboratory, The Salk Institute, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.
Joseph R EckerPlant Biology Laboratory, The Salk Institute, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.
Joanne ChoryPlant Biology Laboratory, The Salk Institute, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.
Torrey Pines Institute For Molecular Studies · USSalk Institute for Biological Studies · US

Funding

Genome-wide transcription factor mapping in Arabidopsis thalianaF32HG004830 · NHGRI · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI SCHMITZ, ROBERT J. · 2003 to 2010
$143k
Howard Hughes Medical InstituteNHGRI NIH HHS F32 HG004830
6 · The paper itself

Abstract

Retrograde signalling from plastids to the nucleus is necessary to regulate the organelle's proteome during the establishment of photoautotrophy and fluctuating environmental conditions. Studies that used inhibitors of chloroplast biogenesis have revealed that hundreds of nuclear genes are regulated by retrograde signals emitted from plastids. Plastid gene expression is the source of at least one of these signals, but the number of signals and their mechanisms used to regulate nuclear gene expression are unknown. To further examine the effects of plastid gene expression on nuclear gene expression, we analyzed Arabidopsis mutants that were defective in each of the six sigma factor (SIG) genes that encode proteins utilized by plastid-encoded RNA polymerase to transcribe specific sets of plastid genes. We showed that SIG2 and SIG6 have partially redundant roles in plastid transcription and retrograde signalling to control nuclear gene expression. The loss of GUN1 (a plastid-localized pentatricopeptide repeat protein) is able to restore nuclear (but not plastid) gene expression in both sig2 and sig6, whereas an increase in heme synthesis is able to restore nuclear gene expression in sig2 mutants only. These results demonstrate that sigma factor function is the source of at least two retrograde signals to the nucleus; one likely to involve the transcription of tRNA(Glu) . A microarray analysis showed that these two signals accounted for at least one subset of the nuclear genes that are regulated by the plastid biogenesis inhibitors norflurazon and lincomycin. Together these data suggest that such inhibitors can induce retrograde signalling by affecting transcription in the plastid.

Indexed as

ArabidopsisArabidopsis ProteinsCell NucleusDNA-Binding ProteinsGene Expression Regulation, PlantPlastidsSeedlingsSigma FactorSignal TransductionTranscription, GeneticArabidopsis ProteinsDNA-Binding ProteinsGUN1 protein, ArabidopsisSIG2 protein, ArabidopsisSIG6 protein, ArabidopsisSigma Factorchloroplastphotosynthesisretrograde signallingsigma factorstetrapyrrolestranscription

Identifiers

PMID22950756
PMCPMC3605210
OpenAlexW1971968092

What OpenQuestion holds

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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.