Evidence map›Paper›PMID 19602624›Full record

ArticleThe Plant cell2009

Sieve element Ca2+ channels as relay stations between remote stimuli and sieve tube occlusion in Vicia faba.

Alexandra C U Furch, Aart J E van Bel, Mark D Fricker, Hubert H Felle, Maike Fuchs, Jens B Hafke

Open access · greenAbstract read
In one paragraph

Article in The Plant cell, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
11.4field-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

45 citing papers in PubMed, 113 citations in OpenAlex.

  1. Measurement of Phloem-Based Electrical Signals in Plants.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  2. Article
  3. Review
  4. Article
  5. Pea Aphid (Plants (Basel, Switzerland) · 2023
    Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. Stochastic Spatial Heterogeneity in Activities of HInternational journal of molecular sciences · 2021
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Inactivation of HPlants (Basel, Switzerland) · 2020
    Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Alexandra C U FurchPlant Cell Biology Research Group, Institute of General Botany, Justus-Liebig-University, D-35390 Giessen, Germany.
Aart J E van Bel
Mark D Fricker
Hubert H Felle
Maike Fuchs
Jens B Hafke
University of Giessen · DEUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Damage induces remote occlusion of sieve tubes in Vicia faba by forisome dispersion, triggered during the passage of an electropotential wave (EPW). This study addresses the role of Ca2+ channels and cytosolic Ca2+ elevation as a link between EPWs and forisome dispersion. Ca2+ channel antagonists affect the initial phase of the EPW as well as the prolonged plateau phase. Resting levels of sieve tube Ca2+ of approximately 50 nM were independently estimated using Ca2+-selective electrodes and a Ca2+-sensitive dye. Transient changes in cytosolic Ca2+ were observed in phloem tissue in response to remote stimuli and showed profiles similar to those of EPWs. The measured elevation of Ca2+ in sieve tubes was below the threshold necessary for forisome dispersion. Therefore, forisomes need to be associated with Ca2+ release sites. We found an association between forisomes and endoplasmic reticulum (ER) at sieve plates and pore-plasmodesma units where high-affinity binding of a fluorescent Ca2+ channel blocker mapped an increased density of Ca2+ channels. In conclusion, propagation of EPWs in response to remote stimuli is linked to forisome dispersion through transiently high levels of parietal Ca2+, release of which depends on both plasma membrane and ER Ca2+ channels.

Indexed as

CalciumCalcium Channel BlockersCalcium ChannelsElectrophysiologyEndoplasmic ReticulumMicroscopy, ConfocalMicroscopy, Electron, TransmissionNifedipinePhloemPlant ProteinsVerapamilVicia fabaCalciumCalcium Channel BlockersCalcium ChannelsNifedipinePlant ProteinsVerapamil

Identifiers

PMID19602624
PMCPMC2729599
OpenAlexW2095611655

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.