Evidence map›Paper›PMID 18629606›Full record

ArticlePhotosynthesis research2008

The activities of PEP carboxylase and the C4 acid decarboxylases are little changed by drought stress in three C4 grasses of different subtypes.

Ana E Carmo-Silva, Anabela Bernardes da Silva, Alfred J Keys, Martin A J Parry, Maria C Arrabaça

Abstract read
PubMed Publisher
In one paragraph

Article in Photosynthesis research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

14 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Article
  3. Biochemical and Structural Diversification of CPlants (Basel, Switzerland) · 2023
    Article
  4. Article
  5. Article
  6. Prokaryotic Expression of PhosphoPlants (Basel, Switzerland) · 2021
    Article
  7. Efficient Regulation of COFrontiers in plant science · 2021
    Article
  8. The Developmental Enhancement of a CFrontiers in plant science · 2020
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. 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 at 2 institutions in 2 countries.

Ana E Carmo-SilvaCentro de Engenharia Biológica and Departamento de Biologia Vegetal, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisbon, Portugal. elizabete.carmosilva@gmail.com
Anabela Bernardes da Silva
Alfred J Keys
Martin A J Parry
Maria C Arrabaça
University of Lisbon · PTRothamsted Research · GB

Funding

Biotechnology and Biological Sciences Research Council BBS/E/C/00004952
6 · The paper itself

Abstract

The C4 photosynthetic pathway involves the assimilation of CO2 by phosphoenolpyruvate carboxylase (PEPC) and the subsequent decarboxylation of C4 acids. The enzymes of the CO2 concentrating mechanism could be affected under water deficit and limit C4 photosynthesis. Three different C4 grasses were submitted to gradually induced drought stress conditions: Paspalum dilatatum (NADP-malic enzyme, NADP-ME), Cynodon dactylon (NAD-malic enzyme, NAD-ME) and Zoysia japonica (PEP carboxykinase, PEPCK). Moderate leaf dehydration affected the activity and regulation of PEPC in a similar manner in the three grasses but had species-specific effects on the C4 acid decarboxylases, NADP-ME, NAD-ME and PEPCK, although changes in the C4 enzyme activities were small. In all three species, the PEPC phosphorylation state, judged by the inhibitory effect of L-malate on PEPC activity, increased with water deficit and could promote increased assimilation of CO2 by the enzyme under stress conditions. Appreciable activity of PEPCK was observed in all three species suggesting that this enzyme may act as a supplementary decarboxylase to NADP-ME and NAD-ME in addition to its role in other metabolic pathways.

Indexed as

DroughtsCarboxy-LyasesCynodonEnergy MetabolismPaspalumPhosphoenolpyruvate Carboxykinase (ATP)Phosphoenolpyruvate CarboxylasePhotosynthesisPlant ProteinsPoaceae4alpha-carboxysterol-C3 dehydrogenaseCarboxy-LyasesPhosphoenolpyruvate Carboxykinase (ATP)Phosphoenolpyruvate CarboxylasePlant Proteins

Identifiers

PMID18629606
OpenAlexW2046085186

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.