Evidence map›Paper›PMID 22787274›Full record

ArticleMolecular & cellular proteomics : MCP2012

System response of metabolic networks in Chlamydomonas reinhardtii to total available ammonium.

Do Yup Lee, Jeong-Jin Park, Dinesh K Barupal, Oliver Fiehn

Open access · hybridAbstract read
In one paragraph

Article in Molecular & cellular proteomics : MCP, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

43 citing papers in PubMed, 101 citations in OpenAlex.

  1. Trial
  2. Metabolic rewiring and biomass redistribution enable optimized mixotrophic growth in Chlamydomonas.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Plant Single-Cell Metabolomics-Challenges and Perspectives.International journal of molecular sciences · 2020
    Review
  10. Article
  11. Article
  12. Article
  13. FermentedNutrients · 2019
    Article
  14. Article
  15. International journal of molecular sciences · 2018
    Article
  16. Article
  17. Article
  18. Article
  19. Proteome response ofAlgal research · 2016
    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

4 authors at 1 institution in 1 country.

Do Yup LeeUniversity of California, Davis Genome Center, Davis, California 95616, USA.
Jeong-Jin Park
Dinesh K Barupal
Oliver Fiehn
University of California, Davis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Drastic alterations in macronutrients are known to cause large changes in biochemistry and gene expression in the photosynthetic alga Chlamydomonas reinhardtii. However, metabolomic and proteomic responses to subtle reductions in macronutrients have not yet been studied. When ammonium levels were reduced by 25-100% compared with control cultures, ammonium uptake and growth rates were not affected at 25% or 50% nitrogen-reduction for 28 h. However, primary metabolism and enzyme expression showed remarkable changes at acute conditions (4 h and 10 h after ammonium reduction) compared with chronic conditions (18 h and 28 h time points). Responses of 145 identified metabolites were quantified using gas chromatography-time of flight mass spectrometry; 495 proteins (including 187 enzymes) were monitored using liquid chromatography-ion trap mass spectrometry with label-free spectral counting. Stress response and carbon assimilation processes (Calvin cycle, acetate uptake and chlorophyll biosynthesis) were altered first, in addition to increase in enzyme contents for lipid biosynthesis and accumulation of short chain free fatty acids. Nitrogen/carbon balance metabolism was found changed only under chronic conditions, for example in the citric acid cycle and amino acid metabolism. Metabolism in Chlamydomonas readily responds to total available media nitrogen with temporal increases in short-chain free fatty acids and turnover of internal proteins, long before nitrogen resources are depleted.

Indexed as

Acetic AcidAmino AcidsCarbonChlamydomonas reinhardtiiChlorophyllCitric Acid CycleFatty AcidsGas Chromatography-Mass SpectrometryGene Expression Regulation, PlantMetabolic Networks and PathwaysMetabolomicsNitrogenPhotosynthesisQuaternary Ammonium CompoundsAcetic AcidAmino AcidsCarbonChlorophyllFatty AcidsNitrogenQuaternary Ammonium Compounds

Identifiers

PMID22787274
PMCPMC3494149
OpenAlexW2167688274

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.