Evidence map›Paper›PMID 25006037›Full record

ArticleJournal of experimental botany2014

A high throughput gas exchange screen for determining rates of photorespiration or regulation of C4 activity.

Chandra Bellasio, Steven J Burgess, Howard Griffiths, Julian M Hibberd

Abstract read
In one paragraph

Article in Journal of experimental botany, 2014. 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
–field-weighted citation impact
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.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Reduction of bundle sheath size boosts cyclic electron flow in CThe Plant journal : for cell and molecular biology · 2022
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Estimating CPhotosynthesis research · 2019
    Article
  11. A generalised dynamic model of leaf-level CPhotosynthesis research · 2019
    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

4 authors.

Chandra BellasioDepartment of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN, UK Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK.
Steven J BurgessDepartment of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK.
Howard GriffithsDepartment of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK.
Julian M HibberdDepartment of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK.

Funding

Biotechnology and Biological Sciences Research Council
6 · The paper itself

Abstract

Large-scale research programmes seeking to characterize the C4 pathway have a requirement for a simple, high throughput screen that quantifies photorespiratory activity in C3 and C4 model systems. At present, approaches rely on model-fitting to assimilatory responses (A/C i curves, PSII quantum yield) or real-time carbon isotope discrimination, which are complicated and time-consuming. Here we present a method, and the associated theory, to determine the effectiveness of the C4 carboxylation, carbon concentration mechanism (CCM) by assessing the responsiveness of V O/V C, the ratio of RuBisCO oxygenase to carboxylase activity, upon transfer to low O2. This determination compares concurrent gas exchange and pulse-modulated chlorophyll fluorescence under ambient and low O2, using widely available equipment. Run time for the procedure can take as little as 6 minutes if plants are pre-adapted. The responsiveness of V O/V C is derived for typical C3 (tobacco, rice, wheat) and C4 (maize, Miscanthus, cleome) plants, and compared with full C3 and C4 model systems. We also undertake sensitivity analyses to determine the impact of R LIGHT (respiration in the light) and the effectiveness of the light saturating pulse used by fluorescence systems. The results show that the method can readily resolve variations in photorespiratory activity between C3 and C4 plants and could be used to rapidly screen large numbers of mutants or transformants in high throughput studies.

Indexed as

Cell RespirationPhotosynthesisCarbon DioxideCarbon IsotopesCleomeLightModels, BiologicalNicotianaOryzaPhotosystem II Protein ComplexPoaceaeRibulose-Bisphosphate CarboxylaseTriticumZea maysCarbon DioxideCarbon IsotopesPhotosystem II Protein ComplexRibulose-Bisphosphate CarboxylaseC3C4carbon concentration mechanism (CCM)carboxylationCleome gynandramaizeMiscanthus.oxygenationphotosynthesisriceRuBisCOwheat

Identifiers

PMID25006037
PMCPMC4085971

What OpenQuestion holds

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Registered trials

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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.