Evidence map›Paper›PMID 12913140›Full record

ArticlePlant physiology2003

Microarray analysis of the genome-wide response to iron deficiency and iron reconstitution in the cyanobacterium Synechocystis sp. PCC 6803.

Abhay K Singh, Lauren M McIntyre, Louis A Sherman

Open access · bronzeAbstract read
In one paragraph

Article in Plant physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
4.6field-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

73 citing papers in PubMed, 179 citations in OpenAlex.

  1. Functional Analysis ofCurrent issues in molecular biology · 2025
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  7. The Molecular Mechanism ofPlants (Basel, Switzerland) · 2023
    Article
  8. Article
  9. Article
  10. Genome-wide identification and characterization of Fur-binding sites in the cyanobacteria Synechocystis sp. PCC 6803 and PCC 6714.DNA research : an international journal for rapid publication of reports on genes and genomes · 2021
    Article
  11. Article
  12. Reciprocal Effect of Copper and Iron Regulation on the Proteome ofFrontiers in bioengineering and biotechnology · 2021
    Article
  13. Review
  14. Article
  15. Regulation of Iron Homeostasis and Use in Chloroplasts.International journal of molecular sciences · 2020
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

13 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

3 authors at 1 institution in 1 country.

Abhay K SinghDepartment of Biological Sciences, Purdue University, West Lafayette, Indiana 47907, USA.
Lauren M McIntyre
Louis A Sherman
Purdue University West Lafayette · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A full-genome microarray of the (oxy)photosynthetic cyanobacterium Synechocystis sp. PCC 6803 was used to identify genes that were transcriptionally regulated by growth in iron (Fe)-deficient versus Fe-sufficient media. Transcript accumulation for 3,165 genes in the genome was analyzed using an analysis of variance model that accounted for slide and replicate (random) effects and dye (a fixed) effect in testing for differences in the four time periods. We determined that 85 genes showed statistically significant changes in the level of transcription (P </= 0.05/3,165 = 0.0000158) across the four time points examined, whereas 781 genes were characterized as interesting (P </= 0.05 but greater than 0.0000158; 731 of these had a fold change >1.25 x). The genes identified included those known previously to be Fe regulated, such as isiA that encodes a novel chlorophyll-binding protein responsible for the pigment characteristics of low-Fe (LoFe) cells. ATP synthetase and phycobilisome genes were down-regulated in LoFe, and there were interesting changes in the transcription of genes involved in chlorophyll biosynthesis, in photosystem I and II assembly, and in energy metabolism. Hierarchical clustering demonstrated that photosynthesis genes, as a class, were repressed in LoFe and induced upon the re-addition of Fe. Specific regulatory genes were transcriptionally active in LoFe, including two genes that show homology to plant phytochromes (cph1 and cph2). These observations established the existence of a complex network of regulatory interactions and coordination in response to Fe availability.

Indexed as

Gene Expression ProfilingGenome, BacterialIron DeficienciesCyanobacteriaEnergy MetabolismGene Expression Regulation, BacterialGenes, BacterialIronOligonucleotide Array Sequence AnalysisPhotosynthesisPhycobilisomesPigments, BiologicalIronPhycobilisomesPigments, Biological

Identifiers

PMID12913140
PMCPMC181269
OpenAlexW2156640962

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.