Evidence map›Paper›PMID 20406785›Full record

ArticleJournal of experimental botany2010

RecA maintains the integrity of chloroplast DNA molecules in Arabidopsis.

Beth A Rowan, Delene J Oldenburg, Arnold J Bendich

Open access · bronzeAbstract read
In one paragraph

Article in Journal of experimental botany, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

56 citing papers in PubMed, 115 citations in OpenAlex.

  1. Article
  2. Article
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  4. The complete mitochondrial genome ofFrontiers in plant science · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Chloroplastic RecA protein fromPhysiology and molecular biology of plants : an international journal of functional plant biology · 2022
    Article
  11. Article
  12. Article
  13. Article
  14. Plastid Genomes of Flowering Plants: Essential Principles.Methods in molecular biology (Clifton, N.J.) · 2021
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Mitochondrial DNA Repair in anPlants (Basel, Switzerland) · 2020
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Beth A RowanDepartment of Biology, University of Washington, Seattle, WA 91895 USA.
Delene J Oldenburg
Arnold J Bendich
University of Washington · US

Funding

TRAINING IN MOLECULAR AND CELLULAR BIOLOGYT32GM007270 · NIGMS · UNIVERSITY OF WASHINGTON · PI RAIBLE, DAVID W · 1985 to 2020
$21.0M
NIGMS NIH HHS T32 GM007270NIGMS NIH HHS T32 GM07270
6 · The paper itself

Abstract

Although our understanding of mechanisms of DNA repair in bacteria and eukaryotic nuclei continues to improve, almost nothing is known about the DNA repair process in plant organelles, especially chloroplasts. Since the RecA protein functions in DNA repair for bacteria, an analogous function may exist for chloroplasts. The effects on chloroplast DNA (cpDNA) structure of two nuclear-encoded, chloroplast-targeted homologues of RecA in Arabidopsis were examined. A homozygous T-DNA insertion mutation in one of these genes (cpRecA) resulted in altered structural forms of cpDNA molecules and a reduced amount of cpDNA, while a similar mutation in the other gene (DRT100) had no effect. Double mutants exhibited a similar phenotype to cprecA single mutants. The cprecA mutants also exhibited an increased amount of single-stranded cpDNA, consistent with impaired RecA function. After four generations, the cprecA mutant plants showed signs of reduced chloroplast function: variegation and necrosis. Double-stranded breaks in cpDNA of wild-type plants caused by ciprofloxacin (an inhibitor of Escherichia coli gyrase, a type II topoisomerase) led to an alteration of cpDNA structure that was similar to that seen in cprecA mutants. It is concluded that the process by which damaged DNA is repaired in bacteria has been retained in their endosymbiotic descendent, the chloroplast.

Indexed as

ArabidopsisCell NucleusChloroplastsDNA, BacterialDNA, ChloroplastGene Expression Regulation, PlantGenome, PlantMutationPhenotypeRec A RecombinasesRNA, MessengerDNA, BacterialDNA, ChloroplastRec A RecombinasesRNA, MessengerT-DNA

Identifiers

PMID20406785
PMCPMC2882256
OpenAlexW2119885723

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.