Evidence map›Paper›PMID 18667721›Full record

ArticlePlant physiology2008

Metabolic network fluxes in heterotrophic Arabidopsis cells: stability of the flux distribution under different oxygenation conditions.

Thomas C R Williams, Laurent Miguet, Shyam K Masakapalli, Nicholas J Kruger, Lee J Sweetlove, R George Ratcliffe

Open access · hybridAbstract read
In one paragraph

Article in Plant physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 6% 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

46 citing papers in PubMed, 1 synthesis or guideline pooled it, 118 citations in OpenAlex.

  1. Pooled it
  2. Non-canonical plant metabolism.Nature plants · 2025
    Review
  3. Article
  4. Article
  5. Plant Heterotrophic Cultures: No Food, No Growth.Plants (Basel, Switzerland) · 2024
    Review
  6. Article
  7. Article
  8. Article
  9. Current Challenges in Plant Systems Biology.Advances in experimental medicine and biology · 2021
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Modeling the Metabolism ofFrontiers in genetics · 2017
    Article
  15. Rapid in situPlant methods · 2017
    Article
  16. Article
  17. Article
  18. 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

6 authors at 1 institution in 1 country.

Thomas C R WilliamsDepartment of Plant Sciences, University of Oxford, Oxford, United Kingdom.
Laurent Miguet
Shyam K Masakapalli
Nicholas J Kruger
Lee J Sweetlove
R George Ratcliffe
University of Oxford · GB

Funding

Biotechnology and Biological Sciences Research Council
6 · The paper itself

Abstract

Steady-state labeling experiments with [1-(13)C]Glc were used to measure multiple metabolic fluxes through the pathways of central metabolism in a heterotrophic cell suspension culture of Arabidopsis (Arabidopsis thaliana). The protocol was based on in silico modeling to establish the optimal labeled precursor, validation of the isotopic and metabolic steady state, extensive nuclear magnetic resonance analysis of the redistribution of label into soluble metabolites, starch, and protein, and a comprehensive set of biomass measurements. Following a simple modification of the cell culture procedure, cells were grown at two oxygen concentrations, and flux maps of central metabolism were constructed on the basis of replicated experiments and rigorous statistical analysis. Increased growth rate at the higher O(2) concentration was associated with an increase in fluxes throughout the network, and this was achieved without any significant change in relative fluxes despite differences in the metabolite profile of organic acids, amino acids, and carbohydrates. The balance between biosynthesis and respiration within the tricarboxylic acid cycle was unchanged, with 38% +/- 5% of carbon entering used for biosynthesis under standard O(2) conditions and 33% +/- 2% under elevated O(2). These results add to the emerging picture of the stability of the central metabolic network and its capacity to respond to physiological perturbations with the minimum of rearrangement. The lack of correlation between the change in metabolite profile, which implied significant disruption of the metabolic network following the alteration in the oxygen supply, and the unchanging flux distribution highlights a potential difficulty in the interpretation of metabolomic data.

Indexed as

Citric Acid CycleOxygen ConsumptionAerobiosisArabidopsisBiomassCarbon IsotopesCell RespirationCells, CulturedCulture MediaMagnetic Resonance SpectroscopyModels, BiologicalCarbon IsotopesCulture Media

Identifiers

PMID18667721
PMCPMC2556809
OpenAlexW2099363748

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.