Evidence map›Paper›PMID 8521802›Full record

ArticleThe EMBO journal1995

Electron transport regulates exchange of two forms of photosystem II D1 protein in the cyanobacterium Synechococcus.

D Campbell, G Zhou, P Gustafsson, G Oquist, A K Clarke

Abstract read
In one paragraph

Article in The EMBO journal, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
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

25 citing papers in PubMed.

  1. Molecular Mechanisms ofPlants (Basel, Switzerland) · 2025
    Review
  2. Comparative Thermophysiology of MarineFrontiers in microbiology · 2022
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Cyanobacterial psbA gene family: optimization of oxygenic photosynthesis.Cellular and molecular life sciences : CMLS · 2009
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Chlorophyll fluorescence analysis of cyanobacterial photosynthesis and acclimation.Microbiology and molecular biology reviews : MMBR · 1998
    Review
  17. Article
  18. Article
  19. The cyanobacterium Synechococcus resists UV-B by exchanging photosystem II reaction-center D1 proteins.Proceedings of the National Academy of Sciences of the United States of America · 1998
    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

5 authors.

D CampbellDepartment of Plant Physiology, University of Umeå, Sweden.
G Zhou
P Gustafsson
G Oquist
A K Clarke

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Synechococcus sp. PCC 7942 modulates photosynthetic function by transiently replacing the constitutive D1 photosystem II protein, D1:1, with an alternate form, D1:2, to help counteract photoinhibition under excess light. We show that a temperature drop from 37 to 25 degrees C also drives D1:1/D1:2 exchange under constant, moderate light. Chilling or light-induced D1 exchange results from rapid loss of psbAI message coding for D1:1 and accumulation of psbAII and psbAIII messages coding for D1:2. During chilling, a large pool of a novel form, D1:2*, transiently accumulates, distinguishable from normal D1 by an increase in apparent molecular mass. D1:2* is not phosphorylated and is probably a functionally inactive, incompletely processed precursor. After acclimation to 25 degrees C, D1:2* disappears and D1:1 again predominates, although substantial D1:2 remains. Partial inhibition of electron transport under constant, moderate light also triggers the D1 exchange process. These treatments all increase excitation pressure on photosystem II relative to electron transport. Therefore, information from photosynthetic electron transport regulates D1 exchange without any requirement for a change in light intensity or quality, possibly via a redox sensing mechanism proximal to photosystem II.

Indexed as

AntioxidantsCell DivisionCyanobacteriaDibromothymoquinoneDiuronElectron TransportPhotosynthesisPhotosynthetic Reaction Center Complex ProteinsPhotosystem II Protein ComplexRNA, MessengerTemperatureAntioxidantsDibromothymoquinoneDiuronPhotosynthetic Reaction Center Complex ProteinsPhotosystem II Protein ComplexRNA, Messenger

Identifiers

PMID8521802
PMCPMC394659

What OpenQuestion holds

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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.