Evidence map›Paper›PMID 23229060›Full record

ArticlePlanta2013

The amount and integrity of mtDNA in maize decline with development.

Delene J Oldenburg, Rachana A Kumar, Arnold J Bendich

Abstract read
PubMed Publisher
In one paragraph

Article in Planta, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

18 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Mitochondrial Genome ofPlants (Basel, Switzerland) · 2020
    Article
  7. Article
  8. Article
  9. Plant Organelle Genome Replication.Plants (Basel, Switzerland) · 2019
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. DNA abandonment and the mechanisms of uniparental inheritance of mitochondria and chloroplasts.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2013
    Review
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 2 institutions in 1 country.

Delene J OldenburgDepartment of Biology, University of Washington, Seattle, WA 98195-5325, USA. delene@uw.edu
Rachana A Kumar
Arnold J Bendich
Seattle University · USUniversity of Washington · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In maize and other grasses there is a developmental gradient from the meristematic cells at the base of the stalk to the differentiated cells at the leaf tip. This gradient presents an opportunity to investigate changes in mitochondrial DNA (mtDNA) that accompany growth under light and dark conditions, as done previously for plastid DNA. Maize mtDNA was analyzed by DAPI-DNA staining of individual mitochondria, gel electrophoresis/blot hybridization, and real-time qPCR. Both the amount and integrity of the mtDNA were found to decline with development. There was a 20-fold decline in mtDNA copy number per cell from the embryo to the light-grown leaf blade. The amount of DNA per mitochondrial particle was greater in dark-grown leaf blade (24 copies, on average) than in the light (2 copies), with some mitochondria lacking any detectable DNA. Three factors that influence the demise of mtDNA during development are considered: (1) the decision to either repair or degrade mtDNA molecules that are damaged by the reactive oxygen species produced as byproducts of respiration; (2) the generation of ATP by photophosphorylation in chloroplasts, reducing the need for respiratory-competent mitochondria; and (3) the shift in mitochondrial function from energy-generating respiration to photorespiration during the transition from non-green to green tissue.

Indexed as

AldehydesCell NucleusCell RespirationDarknessDNA Copy Number VariationsDNA, MitochondrialDNA, PlantElectrophoresis, Gel, Pulsed-FieldIndolesLightMicroscopy, FluorescenceMitochondriaPlant LeavesPlant RootsReactive Oxygen SpeciesReal-Time Polymerase Chain ReactionAldehydesDAPIDNA, MitochondrialDNA, PlantIndolesmitotracker green FMReactive Oxygen Species

Identifiers

PMID23229060
OpenAlexW1963970994

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.