Evidence map›Paper›PMID 20526857›Full record

ArticlePlant molecular biology2010

RNAi-mediated suppression of isoprene emission in poplar transiently impacts phenolic metabolism under high temperature and high light intensities: a transcriptomic and metabolomic analysis.

Katja Behnke, Andreas Kaiser, Ina Zimmer, Nicolas Brüggemann, Dennis Janz, Andrea Polle, Rüdiger Hampp, Robert Hänsch, Jennifer Popko, Philippe Schmitt-Kopplin and 5 more

Open access · hybridAbstract read
In one paragraph

Article in Plant molecular biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

40 citing papers in PubMed, 89 citations in OpenAlex.

  1. Review
  2. Article
  3. Cryptic isoprene emission of soybeans.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. A Novel Isoprene Synthase from the Monocot TreeInternational journal of molecular sciences · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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

15 authors at 9 institutions in 3 countries.

Katja BehnkeInstitute for Meteorology and Climate Research, Karlsruhe Institute of Technology, Garmisch-Partenkirchen, Germany.
Andreas Kaiser
Ina Zimmer
Nicolas Brüggemann
Dennis Janz
Andrea Polle
Rüdiger Hampp
Robert Hänsch
Jennifer Popko
Philippe Schmitt-Kopplin
Barbara Ehlting
Heinz Rennenberg
Csengele Barta
Francesco Loreto
Jörg-Peter Schnitzler
Karlsruhe Institute of Technology · DETechnische Universität Braunschweig · DEUniversity of Göttingen · DEHelmholtz Zentrum München · DEInstitute for Sustainable Plant Protection · ITIstituto di Biologia e Biotecnologia Agraria · ITUniversity of Freiburg · DEUniversity of Tübingen · DEUniversity of Victoria · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In plants, isoprene plays a dual role: (a) as thermo-protective agent proposed to prevent degradation of enzymes/membrane structures involved in photosynthesis, and (b) as reactive molecule reducing abiotic oxidative stress. The present work addresses the question whether suppression of isoprene emission interferes with genome wide transcription rates and metabolite fluxes in grey poplar (Populus x canescens) throughout the growing season. Gene expression and metabolite profiles of isoprene emitting wild type plants and RNAi-mediated non-isoprene emitting poplars were compared by using poplar Affymetrix microarrays and non-targeted FT-ICR-MS (Fourier transform ion cyclotron resonance mass spectrometry). We observed a transcriptional down-regulation of genes encoding enzymes of phenylpropanoid regulatory and biosynthetic pathways, as well as distinct metabolic down-regulation of condensed tannins and anthocyanins, in non-isoprene emitting genotypes during July, when high temperature and light intensities possibly caused transient drought stress, as indicated by stomatal closure. Under these conditions leaves of non-isoprene emitting plants accumulated hydrogen peroxide (H(2)O(2)), a signaling molecule in stress response and negative regulator of anthocyanin biosynthesis. The absence of isoprene emission under high temperature and light stress resulted transiently in a new chemo(pheno)type with suppressed production of phenolic compounds. This may compromise inducible defenses and may render non-isoprene emitting poplars more susceptible to environmental stress.

Indexed as

Base SequenceButadienesCarbohydrate MetabolismDNA PrimersDown-RegulationDroughtsGene Expression ProfilingGenes, PlantHemiterpenesHot TemperatureHydrogen PeroxideLightMetabolomeModels, BiologicalPentanesPhenolsButadienesDNA PrimersHemiterpenesHydrogen PeroxideisoprenePentanesPhenolsTerpenes

Identifiers

PMID20526857
PMCPMC3128716
OpenAlexW1999030144

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.