Evidence map›Paper›PMID 24052559›Full record

ArticleAnnals of botany2013

A unifying conceptual model for the environmental responses of isoprene emissions from plants.

Catherine Morfopoulos, Iain C Prentice, Trevor F Keenan, Pierre Friedlingstein, Belinda E Medlyn, Josep Peñuelas, Malcolm Possell

Open access · bronzeAbstract read
In one paragraph

Article in Annals of botany, 2013. 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
10.2field-weighted citation impact, top 2% 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, 74 citations in OpenAlex.

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  10. Understanding the glacial methane cycle.Nature communications · 2017
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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

7 authors at 5 institutions in 3 countries.

Catherine MorfopoulosDepartment of Life Sciences, Imperial College, Silwood Park, Ascot SL5 7PY, UK.
Iain C Prentice
Trevor F Keenan
Pierre Friedlingstein
Belinda E Medlyn
Josep Peñuelas
Malcolm Possell
Macquarie University · AUCentre for Research on Ecology and Forestry Applications · ESImperial College London · GBUniversity of Exeter · GBUniversity of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsIsoprene is the most important volatile organic compound emitted by land plants in terms of abundance and environmental effects. Controls on isoprene emission rates include light, temperature, water supply and CO2 concentration. A need to quantify these controls has long been recognized. There are already models that give realistic results, but they are complex, highly empirical and require separate responses to different drivers. This study sets out to find a simpler, unifying principle.

methodsA simple model is presented based on the idea of balancing demands for reducing power (derived from photosynthetic electron transport) in primary metabolism versus the secondary pathway that leads to the synthesis of isoprene. This model's ability to account for key features in a variety of experimental data sets is assessed. KEY

resultsThe model simultaneously predicts the fundamental responses observed in short-term experiments, namely: (1) the decoupling between carbon assimilation and isoprene emission; (2) a continued increase in isoprene emission with photosynthetically active radiation (PAR) at high PAR, after carbon assimilation has saturated; (3) a maximum of isoprene emission at low internal CO2 concentration (ci) and an asymptotic decline thereafter with increasing ci; (4) maintenance of high isoprene emissions when carbon assimilation is restricted by drought; and (5) a temperature optimum higher than that of photosynthesis, but lower than that of isoprene synthase activity.

conclusionsA simple model was used to test the hypothesis that reducing power available to the synthesis pathway for isoprene varies according to the extent to which the needs of carbon assimilation are satisfied. Despite its simplicity the model explains much in terms of the observed response of isoprene to external drivers as well as the observed decoupling between carbon assimilation and isoprene emission. The concept has the potential to improve global-scale modelling of vegetation isoprene emission.

Indexed as

EnvironmentModels, BiologicalButadienesCarbon DioxideElectronsHemiterpenesLightNADPPentanesPhotosynthesisPlantsTemperatureButadienesCarbon DioxideHemiterpenesisopreneNADPPentanescarbon dioxideelectron transportIsopreneisoprene emissionmodellingphotosynthesistemperaturevolatile organic compounds

Identifiers

PMID24052559
PMCPMC3806535
OpenAlexW2163673973

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.