Evidence map›Paper›PMID 21222161›Full record

ArticlePhotosynthesis research2011

Evolution of enzymes involved in the photorespiratory 2-phosphoglycolate cycle from cyanobacteria via algae toward plants.

Ramona Kern, Hermann Bauwe, Martin Hagemann

Abstract read
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In one paragraph

Article in Photosynthesis research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 49 citations in OpenAlex.

  1. Review
  2. Ecosystem relocation on Snowball Earth: Polar-alpine ancestry of the extant surface biosphere?Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Review
  4. The cellular response to ocean warming inFrontiers in microbiology · 2023
    Article
  5. Article
  6. Phosphoglycolate salvage in a chemolithoautotroph using the Calvin cycle.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  7. Article
  8. Article
  9. Article
  10. TheFrontiers in plant science · 2018
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Algal evolution in relation to atmospheric CO2: carboxylases, carbon-concentrating mechanisms and carbon oxidation cycles.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2012
    Review
  19. Article
  20. Article
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.

Ramona KernUniversität Rostock, Institut für Biowissenschaften, Abteilung Pflanzenphysiologie, Rostock, Germany.
Hermann Bauwe
Martin Hagemann
University of Rostock · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The photorespiratory pathway was shown to be essential for organisms performing oxygenic photosynthesis, cyanobacteria, algae, and plants, in the present day O(2)-containing atmosphere. The identification of a plant-like 2-phosphoglycolate cycle in cyanobacteria indicated that not only genes of oxygenic photosynthesis but also genes encoding photorespiratory enzymes were endosymbiotically conveyed from ancient cyanobacteria to eukaryotic oxygenic phototrophs. Here, we investigated the origin of the photorespiratory pathway in photosynthetic eukaryotes by phylogenetic analysis. We found that a mixture of photorespiratory enzymes of either cyanobacterial or α-proteobacterial origin is present in algae and higher plants. Three enzymes in eukaryotic phototrophs clustered closely with cyanobacterial homologs: glycolate oxidase, glycerate kinase, and hydroxypyruvate reductase. On the other hand, the mitochondrial enzymes of the photorespiratory cycle in algae and plants, glycine decarboxylase subunits and serine hydroxymethyltransferase, evolved from proteobacteria. Other than most genes for proteins of the photosynthetic machinery, nearly all enzymes involved in the 2-phosphogylcolate metabolism coexist in the genomes of cyanobacteria and heterotrophic bacteria.

Indexed as

Biological EvolutionAlcohol OxidoreductasesArabidopsisBacterial ProteinsCell RespirationChloroplastsCyanobacteriaGlycine Dehydrogenase (Decarboxylating)Glycine HydroxymethyltransferaseGlycolatesHydroxypyruvate ReductaseMitochondriaPhosphotransferases (Alcohol Group Acceptor)PhotosynthesisPhylogenyPlant ProteinsAlcohol OxidoreductasesBacterial Proteinsglycerate kinaseGlycine Dehydrogenase (Decarboxylating)Glycine HydroxymethyltransferaseGlycolatesglycollate oxidaseHydroxypyruvate ReductasephosphoglycolatePhosphotransferases (Alcohol Group Acceptor)Plant Proteins

Identifiers

PMID21222161
OpenAlexW2050886262

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.